HomeMy WebLinkAbout2024-02-06; City Council; ; Approval of Plans, Specifications and Contract Documents and Authorization to Advertise for Bids for the Park Drive Street and Drainage Improvements ProjectCA Review GH
Meeting Date: Feb. 6, 2024
To: Mayor and City Council
From: Scott Chadwick, City Manager
Staff Contact: Brandon Miles, Associate Engineer
brandon.miles@carlsbadca.gov, 442-339-2745
Hossein Ajideh, Engineering Manager
hossein.ajideh@carlsbadca.gov, 442-339-2756
Subject: Approval of Plans, Specifications and Contract Documents and
Authorization to Advertise for Bids for the Park Drive Street and Drainage
Improvements Project
District: 1
Recommended Action
Adopt a resolution approving the plans, specifications and contract documents and authorizing
the City Clerk to advertise for bids for the Park Drive Street and Drainage Improvements
Project.
Executive Summary
The retaining wall along the northeast side of Park Drive between Bayshore Drive and the
residential driveway of 4650 Park Drive was built in 1989 and is in urgent need of replacement.
With the approval of the City Council, staff have obtained the necessary permits, right-of-way
acquisition and used a consultant to prepare project improvement plans and specifications to
replace the existing retaining wall, improve slope stability, install pedestrian improvements and
modify the existing drainage system as part of the Park Drive Street and Drainage
Improvements, Capital Improvement Program Project No. 6611.
The construction cost estimate for these improvements, not including construction contingency
and construction management and inspection costs, is $2,224,400. The City Council’s approval
of these plans and specifications is required under Carlsbad Municipal Code Section 3.28.080(E)
-Construction Projects, because the project cost is more than $200,000.
Staff recommend the City Council approve the plans, specifications and contract documents,
and authorize the City Clerk to advertise for construction bids for the project.
Feb. 6, 2024 Item #1 Page 1 of 8
Explanation & Analysis
Project overview
The project is needed to stabilize the hillside along the north side of Park Drive and to mitigate
surface erosion and deeper-seated instability. The existing retaining wall is degraded and
requires replacement. Due to sediment loss during rain events, the city crews must regularly
close the sidewalk and Park Drive roadway to clean up sediment and debris. In its current
condition, the slope could require regular closures of Park Drive, which impacts public access to
the Agua Hedionda Lagoon.
Staff propose removing an existing block retaining wall, installing a new combination of soldier
pile1 and block retaining wall, repairing portions of the slope and revegetating the project area
with native plants.
Staff propose removing about 600 feet of the existing block retaining wall and replacing it with
approximately 800 feet of a new retaining wall, composed of three different wall types varying
in height from two to 12 feet. Staff also propose:
• Repairing and replanting portions of the slope with native plants
• Installing pedestrian improvements that include a painted crosswalk, upgraded
pedestrian ramps, and rapid flashing beacons to enhance safety and mobility
• Installing a new stormwater filtration facility
These improvements will improve public safety and coastal access.
Project timeline
• Oct. 4, 2021 - Staff presented this project to the Traffic and Mobility
Commission. The Commission voted to support staff’s recommendation to
approve the plans and specifications for the project. The approved minutes of
that meeting are included as Exhibit 4.
• March 30, 2022 - The Planning Division of the Community Development
Department approved the necessary permits and issued a notice of
determination of mitigated negative declaration for the project.
• July 13, 2023 - The California Coastal Commission approved the city’s application
for a coastal development permit for the project with special conditions.
• July 19, 2023 – Two grant deeds and a temporary construction easement were
recorded with the San Diego County Officer of the Recorder for the two
impacted assessor parcel numbers that comprise the site, to allow for the
proposed improvements.
1 A soldier pile is a common retaining wall strategy in which H-shaped steel beams, or piles, are set into the earth
at regular intervals. Horizontal supports then fill the gaps between the piles, helping to spread the load.
Feb. 6, 2024 Item #1 Page 2 of 8
Fiscal Analysis
Sufficient funding is available in the project account to complete the project. Gas tax and
general capital construction funds have been appropriated for the project. The available funds
and estimated construction costs for the project are shown in the table below:
Environmental Evaluation
In accordance with the California Environmental Quality Act and the CEQA Guidelines, the City
Planner approved a mitigated negative declaration (State Clearinghouse No. 2021070586) for
this project on March 30, 2022. Mitigation measures were incorporated into the design of the
project and included a mitigation monitoring and reporting program so that all potentially
significant impacts would be mitigated below a level of significance.
Next Steps
Upon the City Council’s approval, the City Clerk will advertise a request for bids for the project.
Staff will evaluate the bids received and identify the lowest responsive and responsible bidder.
Staff will then return to the City Council with a recommendation to award a construction
contract to the identified bidder, which is expected to be in early 2024.
The construction contract for the project provides for eight months to complete the project
improvements. In accordance with the California Coastal Commission special conditions,
construction is expected to begin in May 2024 and be completed by December 2024, which is
the only window of time allowed for construction.
Exhibits
1. City Council resolution
2. Location map
3. Plans, specifications and contract documents (on file in the Office of the City Clerk)
4. Traffic and Mobility Commission meeting approved minutes dated Oct. 4, 2021 (on file in
the Office of the City Clerk)
Park Drive Street and Drainage Improvements
CIP Project No. 6611
Total appropriated funds to date $4,682,439
Total expenditures and encumbrances to date -$1,207,747
Total available funding $3,474,692
Construction contract (engineer’s estimate) -$2,224,400
Construction contingency (estimated) -$650,000
Construction management, inspection, material testing, support
services (estimated) -$450,000
Total estimated costs -$3,324,400
Remaining balance after total estimated costs $150,292
Additional appropriation needed $0
Feb. 6, 2024 Item #1 Page 3 of 8
RESOLUTION NO. 2024-018
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD,
CALIFORNIA, APPROVING THE PLANS, SPECIFICATIONS AND CONTRACT
DOCUMENTS AND AUTHORIZING THE CITY CLERK TO ADVERTISE FOR BIDS
FOR THE PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS PROJECT
WHEREAS, the City Council of the City of Carlsbad, California has determined that it is necessary
and in the public interest to replace the existing retaining wall to improve slope stability, pedestrian
connectivity and drainage system along Park Drive between Bayshore Drive and the residential
driveway at 4650 Park Drive; and
WHEREAS, the plans, specifications and contract documents for the Park Drive Street and
Drainage Improvements, Capital Improvement Program Project No. 6611 have been prepared, are on
file at the City Clerk's office and are incorporated herein by reference; and
WHEREAS, Carlsbad Municipal Code Section 3.28.080(E) requires the City Council to approve
plans and specifications for all construction projects that are to be formally bid upon when the value
exceeds $200,000; and
WHEREAS, the cost of the project is estimated to be $2,206,700, which does not include a
construction contingency or construction management and inspection costs; and
WHEREAS, sufficient funding is available in the project account to complete the project, which
is to be funded with gas tax and General Capital Construction funds; and
WHEREAS, in accordance with the California Environmental Quality Act, or CEQA, and the
CEQA Guidelines, the City Planner approved a mitigated negative declaration (State Clearinghouse
No. 2021070586) for this project on March 30, 2022. Mitigation measures were incorporated into the
design of the project and included a mitigation monitoring and reporting program so that all
potentially significant impacts would be mitigated below a level of significance.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad, California, as
follows:
1.That the above recitations are true and correct.
2.That the plans, specifications and contract documents for the Park Drive Street and
Drainage Improvements, CIP Project No. 6611, are hereby approved.
Exhibit 1
Feb. 6, 2024 Item #1 Page 4 of 8
3.That the City Clerk is authorized and directed to publish in accordance with state law, a
Notice to Contractors Inviting Bids for construction of the Project, in accordance with
the plans, specifications and contract documents referred to herein.
PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of
Carlsbad on the 6th day of February, 2024, by the following vote, to wit:
AYES:
NAYS:
ABSTAIN:
ABSENT:
Blackburn, Bhat-Patel, Acosta, Burkholder.
None.
None.
Luna.
KEITH BLACKBURN, Mayor
SHERRY FREISINGER, City Clerk
(SEAL)
Feb. 6, 2024 Item #1 Page 5 of 8
(k_
TAMA
R
A
C
K
AVE.
CHINQ
U
A
P
I
N
AVE.
IN
T
E
R
S
T
A
T
E
5
PARK
DR.
ADA
M
S
ST.
H
I
G
H
L
A
N
D
D
R
.
HILLSIDE
ST.
K
E
L
L
Y
DR
.
EL
CA
M
I
N
O
REAL
S
U
N
N
Y
H
I
L
L
D
R
.
S
K
Y
L
I
N
E
RD
.
AGUA
HEDIONDALAGOON
SITE
SITE
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS 6611 2
Exhibit 2
Feb. 6, 2024 Item #1 Page 6 of 8
LOCATION MAP
NOT TO SCALE
PROJECT NAME PROJECT EXHIBIT
NUMBER
TT r-,-,-;--:'.-;-:--,-: • •
Exhibit 3
Plans, specifications and contract documents
(on file in the Office of the City Clerk)
Feb. 6, 2024 Item #1 Page 7 of 8
DECLARATION OF RESPONSIBLE CHARGE
CITY COUNCIL
SCOTT CHADWICK
CITY MANAGER
5
5
78
CONSTRUCTION PLANS
CITY OF CARLSBAD
CARLSBAD, CALIFORNIA
MARCH 2023
FOR
PARK DRIVE STREET AND DRAINAGE
IMPROVEMENTS
VICINITY MAP LOCATION AND KEY MAP
CALL TOLL FREE
1-800-227-2600
TWO
WORKING DAYS
BEFORE YOU
DIG
Underground Service Alert
of Southern California
KEITH BLACKBURN
MELANIE BURKHOLDER
TERESA ACOSTA
PRIYA BHAT-PATEL
-
-
-
-
MAYOR
COUNCIL MEMBER
COUNCIL MEMBER
COUNCIL MEMBER
TITLE SHEET, VICINITY MAP,
LOCATION AND KEY MAP
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
G-1
X
X
CAROLYN LUNA -COUNCIL MEMBER
Ex
h
i
b
i
t
3
GENERAL NOTES AND SHEET INDEX
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
G-2
GRADING NOTES
SOILS ENGINEER'S CERTIFICATE
REFERENCE DRAWINGS
SOURCE OF TOPOGRAPHY
PROJECT LOCATION
BASIS OF COORDINATES AND ELEVATIONS
SHEET INDEX
SHEET
NUMBER DRAWING DRAWING DESCRIPTION
WATER NOTES (CONT) TABLE 1. SUMMARY OF MATERIAL
AND MINIMUM COMPACTION
REQUIREMENTS
”
¾” ≥
”
¾” ≥
”
¾” ≥
”
¾” ≥
≥
WATER NOTES
GENERAL NOTES, LEGEND AND
ABBREVIATIONS
LEGEND
CROSS REFERENCING SYSTEM
SECTION A
DETAIL 1
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
G-3
ABBREVIATIONS
EROSION CONTROL NOTES TEMPORARY EROSION CONTROL
AND IRRIGATION NOTES (CONT)
TEMPORARY EROSION CONTROL
AND IRRIGATION NOTES
EARTHWORK QUANTITIES
YIELD
LA
N
E
BIK
E
DEMOLITION PLAN
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
D-1
GRAPHIC SCALE
PLAN
CONSTRUCTION NOTES:
PLAN
NOTE:
PLAN & PROFILE AND SECTIONS
STA 0+00.00 TO 4+00.00
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
PLAN
PROFILE
SECTION A
SECTION B
C-1
GRAPHIC SCALE
TYPICAL CMU BLOCK WALL SECTION
WALL STA 0+00.00 TO 3+02.57
TYPICAL SOLDIER PILE AND
LAGGING WALL SECTION
STA 3+02.57 TO 4+83.94
CONSTRUCTION NOTES:
EASEMENTS:
NOTES:
LA
N
E
BIK
E
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
SECTION C
PLAN
PROFILE
PLAN & PROFILE AND SECTIONS
STA 4+00.00 TO 8+18.98
C-2
GRAPHIC SCALE
TYPICAL STEPPED PLANTED WALL SECTION
STA 3+62.30 TO 7+11.57
CONSTRUCTION NOTES:
DETAIL 1
EASEMENTS:
CONSTRUCTION NOTES (CONTINUED):
NOTES:
DETAILS - 1
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
C-3
CABLE RAILING DETAIL 1
DETAIL 3
PLAN
SECTION A-A
DETAIL 4
PLAN SECTION B-B
SEDIMENT TRAP DETAIL 2
CONSTRUCTION NOTES:
RECTANGULAR DITCH DETAIL 5
CONSTRUCTION NOTES:
REDWOOD CHEVRON DETAIL 6
DETAILS - 2
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
C-4
LIGHT POLE RELOCATION @ STA 3+30.08 1 OUTLET STRUCTURE DETAIL 2 CURB RAMP GRADING DETAIL 3
CURB EXTENSION BMP DETAIL 4
CONSTRUCTION NOTES:
CURB EXTENSION BMP TYPICAL SECTION 5
NOTE:
CMU WALL DRAINAGE DETAIL 6
NOTES:
LA
N
E
BI
K
E
HORIZONTAL CONTROL PLAN
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
C-5
GRAPHIC SCALE
PLAN
PLAN
NOTES:
EASEMENTS:
CURB RAMP BLOWUP DETAIL 1
WATER QUALITY SWALE BLOWUP DETAIL 2
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
NOT FOR CONSTRUCTION
100% PROGRESS SET
SOIL RETENTION
D E S I G N S I N C .
VERDURA RETAINING WALL PLANS
VERDURA RETAINING WALL GENERAL NOTES
W-1
LA
N
E
BIK
E
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
NOT FOR CONSTRUCTION
100% PROGRESS SET
SOIL RETENTION
D E S I G N S I N C .
PROFILE: VERDURA RETAINING WALL NO. 1
PLAN: VERDURA RETAINING WALL NO. 1
5+00 6+00
20
30
SCALE:
60'20'0 20'40'
1" = 20'
7+00 8+00
VERDURA RETAINING
WALL NO. 1
20
30
GEOGRID EXTENT
VERDURA RETAINING WALL PLAN & PROFILE
LIMITS OF DISTURBANCE
10' WATER EASEMENT PER MAP 5162
25' SEWER AND DRAINAGE EASEMENT
TO THE CITY OF CARLSBAD PER
DOCUMENT NO. 85-207258 RECORDED
JUNE 11, 1985 AS SHOWN ON MAP 12018
ABUT PERMANENT SHORING
RETAINING WALL PER END OF
WALL TRANSITION DETAIL -
CASE D ON SHEET 13
CONNECT 4" SUBDRAIN TO MODIFIED
TYPE F CATCH BASIN PER DETAIL 4 ON
SHEET C-3
W-2
10XT
8XT
8XT
8XT
8XT
8XT
10XT
8XT
8XT
8XT
#XT
#XT
#XT
#XT
10XT
8XT
8XT
8XT
8XT
8XT
10XT
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
NOT FOR CONSTRUCTION
100% PROGRESS SET
SOIL RETENTION
D E S I G N S I N C .
CROSS SECTION: WALL 1 - MAX HEIGHT = 13.33'CROSS SECTION: WALL 1 - MAX HEIGHT = 8.67'
VERDURA RETAINING WALL CROSS SECTIONS
TYPICAL CHIMNEY DRAIN DETAIL*CROSS SECTION: WALL 1 - MAX HEIGHT = 14.67'
W-3
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
NOT FOR CONSTRUCTION
100% PROGRESS SET
SOIL RETENTION
D E S I G N S I N C .
FRONT OF WALL DETAIL
VERDURA 40 BLOCK DETAIL
END OF WALL TRANSITION DETAIL
GEOGRID PLACEMENT ON CURVES DETAILGEOGRID CONNECTION DETAIL
TOP OF WALL DETAIL
X X X X X X
TYPICAL V-DITCH/RAILING DETAIL
CASE A PLAN VIEW
CASE A
CASE B
CASE C
CASE D PLAN VIEW
CASE D SECTION A-A
9"
MAXIMUM
SPACING
9"
MAXIMUM
SPACING
10 3
4"
18 1
4"
10 3
4"
18 1
4"
FRONT VIEW
12 1
4"
8"
12 1
4"
SIDE VIEW
TOP VIEW
X X XX
SECTION A
PLAN VIEW
VERDURA RETAINING WALL STANDARD DETAILS
W-4
MASONRY WALL PLAN AND ELEVATION
STA 0+00.00 TO 3+00.00
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
W-5
ELEVATION - STA 1+50.00 TO STA 3+02.57
MASONRY WALL PLAN
GRAPHIC SCALES
CONSTRUCTION NOTES:
ELEVATION - STA -0+04.26 TO STA 1+50.00
W-5
·
·
·
·
·
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PERMANENT SHORING WALL - NOTES
SITE PLAN VIEW
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PARK
D
R
I
V
E
SEE SHEET 17 (ES1.2)
PLAN & ELEVATION
MA
R
I
N
A
D
R
I
V
E
PERMANENT SHORING WALL - OVERALL PLAN VIEW
ELEVATION VIEW - LOOKING EAST
PLAN VIEW - EAST
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PARK DRIVE
PERMANENT SHORING WALL - PLAN & ELEVATION VIEW
SOLDIER BEAM SECTION (CANTILEVER - PERMANENT ) SOLDIER BEAM SECTION (CANTILEVER-PERMANENT)
PERMANENT SHORING WALL SECTION
STUD WELDING DETAIL
TOP OF WALL DETAIL
PERMANENT SHORING SECTION
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PERMANENT SHORING WALL - DETAILS & SECTIONS
SOLDIER BEAM PLAN SECTION (SOLDIER BEAMS #9-24)
PERMANENT SOLDIER BEAM PLAN SECTION (SOLDIER BEAMS #1-8)
INSIDE CORNER LAGGING DETAIL
SOLDIER BEAM PLAN SECTION (TYPICAL-TEMPORARY SHORING TO BE ABANDONED IN PLACE)
SOLDIER BEAM SECTION (CANTILEVER-TEMPORARY)
TIMBER LAGGING BRACE DETAIL
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PERMANENT SHORING WALL - DETAILS & SECTIONS
SOLDIER BEAM SCHEDULE
EXPANSION JOINT DETAIL EXPANSION JOINT DETAIL
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTS
9685 VIA EXCELENCIA - SUITE 104, SAN DIEGO, CA 92126
TEL (760) 929-2851 FAX (760) 929-2852
NOT FOR CONSTRUCTION
100% PROGRESS SET
PERMANENT SHORING WALL - DETAILS & SCHEDULE
YIELD
LA
N
E
BIK
E
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
PLAN
SIGNING AND STRIPING PLAN
AND DETAILS
S-1
GRAPHIC SCALE
TELESPAR FLASHING BEACON DETAIL 4
CONTINENTAL CROSSWALK MARKING DETAIL 2
SIGN LEGEND
SIGN INSTALLATION DETAIL 3
CONSTRUCTION NOTES:
NOTES:
YIELD
LA
N
E
BIK
E
FINAL STABILIZATION PLAN
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTNOT FOR CONSTRUCTION
100% PROGRESS SET
PLAN
CONSTRUCTION NOTES:
GRAPHIC SCALE
PLAN
LEGEND:
EC-1
LAN
E
BIK
E
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFT
PLANTING PLAN
LANDSCAPE PLANTING PLANSSTA 0+00 TO 8+17.92
SHEET KEY MAP
PLANTING PLAN
SECTION A - TYPICAL PLANTER WALL
LP-1
5 GALLON CONTAINER PLANT LEGEND
(COASTAL SAGE SCRUB PLANTINGS)
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTLANDSCAPE PLANT LEGEND,SEED MIX, & PLANTING DETAILS
PLANT LEGEND
LP-2
REVEGETATION SEED MIX
CM
AE
EC
CC
CM CM CM CM CM
CM CM CM CM CM
AE
AE AE
CCCC
CC
EC
EC
EC
EC
SC
EP
CG
BP
SC SC
SC SCEPEP
EP EPCGCG
CG
CGCG
CGBP BP BP BP
BPBP
5 GALLON CONTAINER PLANT SYMBOLS
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTLANDSCAPE PLANTING NOTES
PLANTING NOTES
GENERAL LANDSCAPE NOTES
LP-3
CLEARING & GRUBBING NOTES PLANTING NOTES (CONTINUED)
EXISTING CONDITIONS NOTES:
SLOPE / GRADED AREA TREATMENT NOTES
BIOSWALE SEED MIX
LA
N
E
BIK
E
IRRIGATION PLAN
IRRIGATION LEGEND:
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFT
IRRIGATION PLAN
LI-1
LANDSCAPE IRRIGATION PLANS
STA 0+00 TO 8+17.92
POINT OF CONNECTION - SCHEMATIC VIEW:
5 GALLON CONTAINER PLANT LEGEND
(COASTAL SAGE SCRUB PLANTINGS)
PRESSURE LOSS CALCULATION FOR LOWEST PRESSURE SYSTEM
SHEET KEY MAP
LATERAL LINE PIPE SIZING CHART:
2"
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTLANDSCAPE IRRIGATION
LEGEND, NOTES & DETAILS
IRRIGATION LEGEND
LI-2
IRRIGATION NOTES
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTLANDSCAPE IRRIGATION DETAILS
LI-3
1
1
—
NOT FOR CONSTRUCTION
100% PROGRESS SET
605 Third Street Encinitas, CA 92024
760.942.5147 Fax 760.632.0164
PARK DRIVE STREET AND DRAINAGE IMPROVEMENTSDRAFTLANDSCAPE IRRIGATION DETAILS
LI-4
Revised 6/15/17 Contract No. Page 1 of 39
SUPPLEMENTAL PROVISIONS TO STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION PART 2, CONSTRUCTION MATERIALS SECTION 207 – GRAVITY PIPE
207-2 REINFORCED CONCRETE PIPE (RCP).
207-2.5 Joints. Add the following: All RCP joints shall receive a rubber-gasket meeting the require-ments of Section 208-3 Gaskets for Concrete Pipe. Add the following section: 207-26 UNDERGROUND UTILITY MARKING TAPE.
Add the following section: 207-26.1 Detectable Underground Utility Marking Tape: Detectable Underground Utility Marking Tape shall have a minimum 0.13 mm (0.005”) overall thickness, with no less than a 35 gauge (AWG), 0.14 mm aluminum foil core. The foil shall be visible from both sides. The layers shall be laminated together with the extrusion lamination process, not adhesives. No inks or printing shall extend to the edges of the tape. All printing shall be encased to avoid ink rub-off. Detectable Underground Utility Marking Tape shall conform to the properties listed in Tables 207-26(A) and 207-26 (B): TABLE 207-26.1(A) DETECTABLE UNDERGROUND UTILITY MARKING TAPE PROPERTIES
Property Method Value
Thickness ASTM D2103 0114 mm (0.0056”) Tensile strength ASTM D882 4500g/cm (25 lbs/inch) (5,500 PSI) Elongation ASTM D882-88 <50 percent at break Printability ASTM D2578 >50 dynes/square centimeter Flexibility ASTM D671-81 Pliable hand Inks Manufacturing specifications Heat-set Mylex Message repeat Manufacturing specifications Every 500 mm(20”) Foil Manufacturing specifications Dead soft/annealed Top layer Manufacturing specifications Virgin PET Bottom layer Manufacturing specifications Virgin LDPE Adhesives Manufacturing specifications >30 percent, solid 1.5#/R Bond strength Boiling H2O at 100 degrees Celsius Five hours without peel Colors APWA Code See Table 207-25.1 (B)
Revised 6/15/17 Contract No. Page 2 of 39
TABLE 207-26.1(B) DETECTABLE UNDERGROUND UTILITY MARKING TAPE COLORS
Color Utility Marked
Red Electric power, distribution, transmission, and municipal electric systems. Yellow Gas and oil distribution and transmission, dangerous materials, product and steam.
Orange Telephone and telegraph systems, police and fire communications, and cable television.
Blue Water systems.
Green Sanitary and storm sewer systems, nonpotable. Brown Force mains. Purple Reclaimed water lines.
Add the following section: 207-26.2 Materials Approvals. Detectable Underground Utility Marking Tape shall meet the re-quirements of each of the following agency/association publications. A. Department of Transportation, Materials Transportation Bureau, Office of Pipeline Safety. USAS code for pressure piping B31.8, paragraph 192.321(e). B. National Transportation Safety Board, Washington, DC, Special Study Prevention of Damage to Pipelines. Adopted June 7, 1974. Report NTSB-PSS-73-1. C. American Petroleum Institute (API). Recommended practice for marking buried liquid petro-leum pipelines - APR RP 1109. D. General Services Administration, Washington, DC, Public Buildings Service Guide Specifica-tion for Mechanical and Electrical Equipment - PBS 4-1501, Amendment 2, Page 501-14, Paragraph 18, Subparagraph 18.1, Clause 18.1.1. E. Rural Electrification Authority (REA), U.S. Department of Agriculture, Washington, DC, National Electrical Safety Code for Underground Construction for remote and immediate hazards. SECTION 213 – ENGINEERING GEOSYNTHETICS
213-5 GEOTEXTILES AND GEOGRIDS. Add the following paragraphs: Geogrid shall be Miragrid 8XT or greater, or approved equal, and have been tested with the retaining wall block listed in the ICC-ES Evaluation Report. The geogrid is a component of the Verdura retaining wall system shown on the Contract Drawings. Contractor shall include all components of Verdura retaining wall shown in the Contract Drawings including but not limited to geogrid, blanket drain, leveling pad and chimney drain as part of the Ver-dura retaining wall construction. SECTION 217 – BEDDING AND BACKFILL MATERIALS 217-3 STUCTURE BACKFILL. Replace Table 217-3 with Table: “Summary of Material and Minimum Compaction Recommendations” page 10 of Group Delta Geotechnical Recommendations dated July 30, 2021. Add the following sections: 217-3.1 Quality Assurance. Excavated onsite material may be used for structure backfill provided it conforms to the above specifications for structural backfill material and is approved by the City or a Geotechnical Engineer provided by the City. 217-3.2 Submittals. Structure backfill shall conform with Group Delta Geotechnical Recommenda-tions (July 30, 2021). Import material shall be obtained from, and waste material shall be deposited at, a site approved by the engineer. Prior to obtaining import material, contractor to provide product submittal to engineer for review and approve. Contractor shall submit copies of a report from a testing laboratory verifying that imported material conforms to the gradation specified.
Commented [NR1]: City - Please review for measurement and payment section. The costs and design assume that all of these elements are part of the Verdura wall construction item and built by the wall contractor.
Revised 6/15/17 Contract No. Page 3 of 39
SUPPLEMENTAL PROVISIONS TO
STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION PART 3, CONSTRUCTION METHODS
SECTION 300 – EARTHWORK 300-2 UNCLASSIFIED EXCAVATION. 300-2.2.1 General. add the following to the first paragraph: Such direction may include, but is not limited to, directing the Contractor to blend, adjust moisture content of, rework, and place unsuitable soils at specific locations or elevations on the site. 300-3 Structure Excavation and Backfill 300-3.1 General Add to first paragraph: Care shall be taken in performing structure excavation of the soldier pile wall lagging in order to minimize the formation of voids behind the lagging that will need to be backfilled. At end of the work shift, lagging shall be in place the full height of the exposed excava-tion face. 300-3.5 Structure Backfill 300-3.5.1 Requirements Add to First paragraph: Structure backfill behind the solider pile wall lagging shall be compacted by hand tamping, mechanical compaction or other measure approved by the en-gineer. Structure backfill in fill area behind the lagging shall be keyed into the existing or excavated back slope. Replace: a) Consolidation of structure backfill by jetting will not be permitted. Add: A two-sack sand and cement slurry may also be used for structural fill as an alternative to compacted soil. Samples of the slurry should be fabricated and tested for compressive strength during construction. A 28-day compressive strength of 100 pounds per square inch (psi) or more is recom-mended for the sand and cement slurry. Crushed rock (¾-inch) completely wrapped in filter fabric (Mirafi 140N or approved equivalent) may also be used as backfill in confined areas. 300-4.2 Preparation of Placement Areas Modify second sentence to: The areas shall then be scar-ified to a minimum depth of 12 inches, moisture condition to slightly above optimum moisture content and recompacted to 90 percent of the maximum dry density as evaluated by ASTM D1557 unless otherwise approved by the Geotechnical Engineer. Add: In areas of saturated or pumping subgrade, a geogrid such as Tensar BX-1200, Terragrid RX1200 or Mirafi BXG120 (or approved equivalent) may be placed directly on the excavation bottom, and then covered with at least 12 inches of ¾-inch Aggregate Base (AB). Once the subgrade is firm enough to attain compaction with the AB, the remainder of the excavation may be backfilled. It may be necessary to place additional AB to stabilize the subgrade sufficiently to place fill. Add the following section:
Revised 6/15/17 Contract No. Page 4 of 39
300-12 STORM WATER POLLUTION PREVENTION PLAN
300-12.1 Storm Water Pollution Prevention Plan. As part of the storm water pollution prevention work, the Contractor shall prepare and submit Storm Water Pollution Prevention Plan, hereafter re-ferred to as the "SWPPP,". The SWPPP shall conform to the requirements of the current City of Carls-bad Engineering Standards Volume 4 “SWPPP Manual”, “Greenbook” Standard Specifications for Public Works Construction, the requirements in the California Storm Water Quality Association, Storm-water Best Management Practice Handbook, Construction (“Handbook”), the requirements of the Con-struction General Permit (Permit), the requirements in the plans and these supplemental provisions. It is anticipated the SWPPP will be a Risk Level 2. 300-12.2 SWPPP Document. Within 15 calendar days after the execution of the contract, the Con-tractor shall submit 3 copies of the SWPPP to the Engineer, in accordance with Section 2-5.3 of these Special Provisions. If revisions are required, as determined by the Engineer, the Contractor shall re-vise and resubmit the SWPPP within 15 days of receipt of the Engineer’s comments and shall allow 5 days for the Engineer to review the revisions. Upon the Engineer’s acceptance of the SWPPP, 3 ad-ditional copies of the SWPPP, incorporating the required changes, shall be submitted to the Engineer. In order to allow construction activities to proceed, the Engineer may conditionally approve the SWPPP while minor revisions are being completed. The objectives of the SWPPP shall be to identify pollution sources that may adversely affect the quality of storm water discharges associated with the project and to identify, construct, implement and main-tain storm water pollution prevention measures, hereafter referred to as control measures, to reduce to the extent feasible pollutants in storm water discharges from the construction site both during and after construction is completed under this contract. The SWPPP shall incorporate control measures in the following categories: 1. Soil stabilization practices; 2. Sediment control practices; 3. Wind erosion control practices; 4. Non-storm water management and waste management and disposal control practices. 5. Daily street sweeping Specific objectives and minimum requirements for each category of control measures are contained in the Handbook. The Contractor shall designate a Water Pollution Control Manager who will have the responsibilities outlined in the SWPPP.
Revised 6/15/17 Contract No. Page 5 of 39
The SWPPP shall include, but not be limited to, the following items as described in the SWPPP: 1. Source Identification; 2. Erosion and Sediment Controls; 3. Non-Storm Water Management; 4. Waste Management and Disposal; 5. Maintenance, Inspection and Repair; 6. Training; 7. List of Contractors and Subcontractors; 8. Post-Construction Storm Water Management; 9. Preparer; 10. Copy of the local permit; 11. BMP Consideration Checklist; 12. SWPPP Checklist; 13. Schedule of Values; and 14. Storm Water Pollution Prevention Drawings. The Contractor shall amend the SWPPP, graphically and in narrative form, whenever there is a change in construction activities or operations which may affect the discharge of significant quantities of pol-lutants to surface waters, ground waters, municipal storm drain systems, or when deemed necessary by the Engineer. The SWPPP shall also be amended if it is in violation of any condition of the Permit, or has not effectively achieved the objective of reducing pollutants in storm water discharges. Amend-ments shall show additional control measures or revised operations, including those in areas not shown in the initially accepted SWPPP, which are required on the project to control water pollution effectively. Amendments to the SWPPP shall be submitted for review and acceptance by the Engineer in the same manner specified for the initially accepted SWPPP. Accepted amendments shall be dated and logged in the SWPPP. Upon acceptance of the amendment, the Contractor shall implement the additional control measures or revised operations. The Contractor shall keep a copy of the accepted SWPPP and accepted amendments at the project site. The SWPPP shall be made available upon request of a representative of the Regional Water Quality Control Board, State Water Resources Control Board, U.S. Environmental Protection Agency or local storm water management agency. Requests by the public shall be directed to the Engineer. 300-12.3 SWPPP Implementation. Upon acceptance of the SWPPP, the Contractor shall be respon-sible throughout the duration of the project for installing, constructing, inspecting and maintaining the control measures included in the SWPPP and any amendments thereto and for removing and dispos-ing of temporary control measures. Unless otherwise directed by the Engineer or specified in these supplemental provisions, the Contractor's responsibility for SWPPP implementation shall continue throughout any temporary suspension of work ordered in accordance with Section 6-3, "Suspension of Work". Requirements for installation, construction, inspection, maintenance, removal and disposal of control measures are specified in the “Handbook” and these supplemental provisions. Soil stabilization practices and sediment control measures, including minimum requirements, shall be provided throughout the winter season, defined as between October 1 and April 30. Implementation of soil stabilization practices and sediment control measures for soil-disturbed areas of the project site shall be completed, except as provided for below, no later than 20 days prior to the beginning of the winter season or upon start of applicable construction activities for projects which begin either during or within 20 days of the winter season.
Revised 6/15/17 Contract No. Page 6 of 39
The Contractor shall implement, year-round and throughout the duration of the project, control measures included in the SWPPP for sediment tracking, wind erosion, non-storm water management and waste management and disposal. The Engineer may order the suspension of construction operations, at the Contractor’s cost, which create water pollution if the Contractor fails to conform to the requirements of this section as deter-mined by the Engineer. 300-12.4 Maintenance. To ensure the proper implementation and functioning of control measures, the Contractor shall regularly inspect and maintain the construction site for the control measures iden-tified in the SWPPP, as described in Section 7-8. The Contractor shall identify corrective actions and time frames to address any damaged measures or reinitiate any measures that have been discontin-ued. The construction site inspection checklist provided in the “Handbook” shall be used to ensure that the necessary measures are being properly implemented, and to ensure that the control measures are functioning adequately. The Contractor shall submit one copy of each site inspection record to the Engineer, within two days of the inspection. During the winter season, inspections of the construction site shall be conducted by the Contractor to identify deficient measures, as follows: 1. When the five-day rain probability forecast exceeds forty percent (40%). 2. After any precipitation which causes runoff capable of carrying sediment from the construction site; 3. At 24 hour intervals during extended precipitation events; and 4. Routinely, at a minimum of once every week. If the Contractor or the Engineer identifies a deficiency in the deployment or functioning of an identified control measure, the deficiency shall be corrected by the Contractor immediately, or by a later date and time if requested by the Contractor and accepted by the Engineer in writing, but not later than the onset of subsequent precipitation events. The correction of deficiencies shall be at no additional cost to the City. 300-12.5 Payment. The contract lump sum price paid for the SWPPP work shall include full com-pensation for the design, submittal, obtaining approval, and amending the Tier 2 SWPPP and for furnishing all labor, materials, tools, equipment, and incidentals to install, implement, maintain and remove construction BMPs per the approved SWPPP. The most recent Tier 2 construction SWPPP Template is available on the City Website and an example is included in Appendix C. Partial payment shall be based on the percentage the total value of work completed. Add section: 300-13 Dewatering. Dewatering consists of discharging accumulated stormwater, groundwater, or surface water from ex-cavations or temporary containment facilities. The Contractor shall submit a dewatering and discharge work plan. Submittals: 1. Submit a dewatering plan and related supporting information detailing proposed plan and meth-odology of dewatering, treatment, and disposal of accumulated water. a. Dewatering plan shall include proposed dewatering system layout and manufacturer cut sheets for equipment necessary to perform dewatering.
Revised 6/15/17 Contract No. Page 7 of 39
b. Identify the location, type and size of dewatering devices and related equipment, the size and type of materials composing the collection system, the size and type of equipment to be used to retain and treat accumulated water, and the proposed disposal locations. 2. Submit copies of permits from jurisdictions governing disposal of the groundwater. Dewatering, treatment and disposal of water shall be performed in conformance with the following requirements: 1. Conduct dewatering activities under the Caltrans's Field Guide for Construction Site Dewatering. 2. Discharge from dewatering activities shall not cause erosion, scour, or sedimentary deposits that could impact natural bedding materials. 3. Discharge from dewatering activities shall only be used within the project limits as dust control. Excess discharge that is not used for dust control shall be disposed of by the Contractor in accordance with the Order R9-2015-0013 NPDES NO. CAG919003 or Order WQ 2022-0057-DWQ NPDES No. CA000002 if applicable. 4. Discharge from dewatering activities that has an odor, discoloration other than sediment, an oily sheen, or foam on the surface shall not be used for dust control and shall be disposed of by the Contractor. The Contractor shall notify the Engineer immediately upon discovering any such condition. Subsurface exploration performed for the project on March 16, 2017 by Group Delta 9245 Activity Road, Suite 103, San Diego, California 92126; Phone: 858-536-1000. These investigations are pro-vided for reference and information and are presented in the following reports: Report of Geotechnical Investigation Park Drive Street and Drainage Improvements Carlsbad, California Dated June 1, 2020 Geotechnical Recommendations Park Drive Street and Drainage Improvements Carlsbad, California Dated June 30, 2021 By submitting a bid, the bidder is deemed to have examined the above referenced reports, and is familiar with the findings, recommendations, and conclusions contained therein, and has included with bid all costs associated with groundwater control and dewatering, special remedial earthwork and excavation requirements, and of fill and compaction requirements. It shall be assumed that construc-tion shall be performed in wet conditions that require dewatering. It shall be the responsibility of the Contractor to make provisions for soil conditions that differ from those reported in the soils report referenced above. 300-13 Payment. The contract lump sum price paid for the dewatering work shall include full com-pensation for the dewatering workplan and for furnishing all labor, materials, tools, equipment, and incidentals to install, implement, maintain and remove the dewatering operation. Partial payment shall be based on the percentage the total value of work completed.
Commented [NR2]: This is where the new CGP compli-cates things. I am assuming at this point this project will prob-ably fall under the new CGP and it covers some dewatering now.
Commented [JO3]: This section in blue is a modified ver-sion of what we used on Crestline to have a CYA on the soil conditions. I think it works well in this situation as well.
Commented [NR4R3]: Good call
Revised 6/15/17 Contract No. Page 8 of 39
SECTION 301 - SUBGRADE PREPARATION, TREATED MATERIALS AND PLACEMENT OF BASE MATERIALS
301-1 SUBGRADE PREPARATION.
301-1.2 Preparation of Subgrade. Add: For new/replaced sidewalk or flatwork areas, provide a min-imum of 2 feet of subgrade soil with an Expansion Index (EI) of 50 or less as follows. Excavate 12 inches of soil below the sidewalk subgrade elevation. Excavated material can be reused if the EI is less than 50. If clayey soils with an EI above 50 is encountered below the initial 12 inch excavation, an additional foot of expansive material should be excavated and replaced with low expansion poten-tial granular material (EI<50). The subgrade soil should then be brought to slightly above optimum moisture content and compacted to at least 90% of the maximum dry density determined using ASTM D1557. Stabilization in accordance with Section 300-4.2 may be needed where expansive clay is en-countered at the bottom of the resultant removal surface. Subgrade compaction should be conducted immediately prior to placing base or concrete. SECTION 303 CONCRETE AND MASONRY CONSTRUCTION.
303-2 AIR-PLACED CONCRETE. 303-2.1.1 General. add the following: Modify Regional Standard Drawing D-75 as follows: replace stucco netting with 150mm x 150mm (6” x 6”) by No. 10 by No. 10 welded wire mesh. SECTION 306 – OPEN TRENCH CONDUIT CONSTRUCTION 306-7 PREFABRICATED GRAVITY PIPE. 306-7.3.2.3 Gasket-Type Joints. Add the following: The Contractor shall provide Rubber Gasket-type joints for all reinforced concrete pipe (watertight joints).
Revised 6/15/17 Contract No. Page 9 of 39
SUPPLEMENTAL PROVISIONS TO STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION
PART 4, EXISTING IMPROVEMENTS SECTION 401 – REMOVAL 401-3 CONCRETE AND MASONRY IMPROVEMENTS 401-3.2 Concrete Curb, Walk, Gutters, Cross Gutters, Curb Ramps, Driveway and Alley Inter-sections. Delete the third and fourth sentence and add the following: All existing concrete shall be removed to the nearest joint. Concrete shall be removed to neatly sawed edges with saw cuts made to a minimum depth of 1-1/2 inches. PCC and all other material unsuitable for use as fill, as determined by the Engineer, shall be removed from the right-of-way and disposed of by the Contractor at a site of his own choice and he/she shall pay all costs incidental to the disposal.
Revised 6/15/17 Contract No. Page 10 of 39
SUPPLEMENTAL PROVISIONS TO STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION
PART 5, SYSTEM REHABILITATION SECTION 500 - PIPELINE 500-3 CLEANING AND PRELIMINARY INSPECTION. 500-3.2.2 Closed Circuit Television (CCTV) System Equipment. ADD the following: The camera head shall have a rotary head with rotational, pan and tilt movement in order to allow a full circumfer-ential inspection and observe all portions of the pipeline. It shall have a high resolution lens capable of spanning 360 degrees circumference and 270 degrees on a horizontal axis to televise pipelines. Optical focal distance shall be adjustable through a range of 1-inch to infinity. The camera source image capture shall provide a high resolution image with a minimum of 320x240 pixels capture. The camera shall clearly show all conditions and defects. The purpose of the rotating head camera is to view all service connections, and to locate all defects, as well as any pipeline problem conditions. The CONTRACTOR shall stop for at least 15 seconds to properly document the condition of the lateral, size and location, and observed structural defects such as misalignment, offset joints, protruding lat-eral taps, cracked pipe, roots in pipe, roots from laterals, sages in profile, and other pertinent obser-vations as they are encountered. The camera will pause as necessary and pan/tilt/rotate to clearly show manhole condition and structural defects from the channel and lower manhole area to the upper manhole area as viewable by the camera. ADD the following subsection: 500-3.4.1 Investigations The CONTRACTOR shall videotape the pipeline and submit on DVD format for OWNER’s review at the following:
• Pre-construction of areas adjacent to construction
• post cleaning of the storm drain,
• post lining of the storm drain
• final video shall include: post main lining, post sealing of mainline cut ends at inlets and post sealing of lateral connections. Final videotaping shall be performed after complete system installation and five (5) days prior to the final walk through inspection. Final color video shall be submitted on DVD format. The video shall be of a high resolution quality, to be viewed on DVD reader system. Lettering 3/8- inch high and internal approval stamps of pipe manufacturers shall be clearly readable on the video. Continuously displayed on the monitors and recorded on the video shall be the date of the survey, number designation of the manhole section being surveyed, identified fault conditions and a continu-ous forward and reverse read-out of the camera distance from the manhole of the reference.
Revised 6/15/17 Contract No. Page 11 of 39
Pipe conditional and fault information tied to pipe location shall also be recorded in the Report Access database record associated with each video. This information shall be in tabular form, and include but not be limited to the following information: pipeline run from upstream to downstream manhole, loca-tion of defects in feet from upstream manhole, description of the defect, and other pertinent infor-mation. Location records shall also show all lateral connections. The camera operator shall record all fault conditions and other required information as an audio com-mentary on the tape. The audio portion of the file shall be sufficiently free from electrical interference and/or background noise so that the narration is completely intelligible. The audio shall remain accu-rate to the original source voice through the digital video processing. The audio narrative shall de-scribe all notable defects found including the location in feet from the upstream manhole and type of each defect. A QA/QC procedure by the CONTRACTOR shall be developed to ensure high quality results from the televising. The CONTRACTOR shall provide reports of inspection results of pipeline televising and conditional assessments utilizing reporting software that is compatible with OWNER format requirements. The reporting software shall utilize a Microsoft Access Database. The inspection reports shall incorporate and utilize a standardized NASSCO PACP rating system to be provided for comprehensive evaluation of pipeline and/or manhole condition, i.e. a standardized listing of facility condition and defect codes. The report shall utilize a Microsoft Access Database. The CONTRACTOR shall provide digital photos of representative pipeline conditions, captured during the CCTV televising. Representative photos of pipeline conditions shall be taken with a minimum of four (4) photos for every section of pipeline between manholes. In addition, photos shall be taken of serious defect locations, with these defects to be defined by the OWNER. When these conditions are noted, the CONTRACTOR shall notify the OWNER of the need for emergency repair requirements. The Digital photo files shall be annotated with the pipeline number and station of the defect. Photos shall be attached to the inspection reports to be provided in both hard copy and in an electronic format consistent with OWNER requirements. Within two (2) working days after the television inspection of each individual reach documented on a particular videotape, the CONTRACTOR shall deliver to the ENGINEER the DVD for review. Three (3) working days shall be allowed for the City to judge whether the deficiencies are repairable, in place. If the judgment is made that the deficiencies are non-repairable in place, the affected portion(s) shall be reconstructed. Due to the nature of the work, the CONTRACTOR shall provide a self-propelled camera, capable of extended videotaping lengths and operation in remotely accessed areas without direct vehicular ac-cess. The CONTRACTOR shall provide all video (with audio) in digital file format on DVDs. The CONTRACTOR shall provide an initial submittal at the start of televising work demonstrating the typi-cal video and audio quality to be provided for approval by the OWNER. This submittal shall note any proposed changes to the specification listed below regarding video format, data processing compres-sion or other condition for review and approval by the OWNER. One file shall be provided for each manhole to manhole pipe segment (or for each manhole to manhole inspection video).
Revised 6/15/17 Contract No. Page 12 of 39
The filename shall incorporate the unique facility identifier (to be provided by the OWNER) and the date of the inspection. The facility identifier numbers will be manhole numbers, with adjacent manhole numbers identifying pipe sections. A single video record file shall be provided for each pipe section. The video will be captured and compressed so as to reduce file size as much as possible while still meeting the needs of the OWNER. The compression shall be per MPEG-2 format. The video files shall be highly compressed, resulting in an anticipated average file size of 10 MB per minute of video. The compression shall not significantly degrade the still frame quality of the video or audio signal from the original source video, as judged in a side by side viewing under normal viewing conditions. OWNER staff will be responsible for integrating the digital files within applications to facilitate access and vexing of the video files by end users. ADD the following subsection: 500-3.4.2 Reporting and Delivery of Inspection File The Contractor shall provide reports of inspection results from pipeline televising and conditional as-sessment utilizing a Microsoft Access Database version compatible with the City. Upon completion of the first day of work, the consultant shall submit a DVD of all segments in-spected to demonstrate the typical video, audio quality, summary log of inspection, and Microsoft Access format that will be provided throughout the project. A Microsoft Access file containing the PACP assessment, video inspection, inspection summary report in pdf format and screen shots of defects (if any) shall be recorded for each segment televised. At the end of the project, the consult-ant shall submit a summary inspection log that shows the date of inspection, PACP score for each segment televised, and clearly identify all red flag pipe segments. 500-3.6 Measurement. Replace this section with the following: CCTV inspection will be measured by the unit of measure defined in the bid schedule. 500-3.7 Payment. Replace this section with the following: The contract unit price shall include full compensation for furnishing all labor, materials, tools, equipment, and for doing all work involved in performing post construction CCTV inspections of the newly constructed storm drain and pre and post inspections of the Leucadia Waste Water District’s 15” PVC gravity sewer in accordance with Sections 500.3.4 and PACP Standard. PACP 6.0 certified software with the capability to import from and export to a PACP database shall be used. Contractor shall notify the engineer and Leucadia Waste Water District five (5) working days prior to inspection and the city will provide the PACP database at that time. CCTV Inspection files shall be delivered to the engineer per Section 2-5.3 Submittals a minimum of forty eight (48) hours prior to excavation or the final surface cap paving.
Revised 6/15/17 Contract No. Page 13 of 39
SUPPLEMENTAL PROVISIONS TO STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION
PART 6 TEMPORARY TRAFFIC CONTROL
SECTION 601 - TEMPORARY TRAFFIC CONTROL FOR CONSTRUCTION AND MAINTENANCE WORK ZONES 601-2 TEMPORARY TRAFFIC CONTROL PLAN (TCP). 601-2.2 Payment. Replace this section with the following: The Contract lump sum price paid for the traffic control system shall include full compensation for, but not limited to, design, submittal and ap-proval of the traffic control plan, furnishing all labor (including flagging costs), materials (including construction area signs), tools, equipment, traffic control plans for the project, and incidentals, and for doing all the work involved in placing, removing, storing, maintaining, moving to new locations, replac-ing and disposing of the components of the traffic control including channelizers (surface mounted), temporary railing (Type K) markers, lights for illuminating the work site, delineators, temporary striping and pavement marking, barricades, portable flashing beacons, flashing arrow signs, portable change-able message signs, as shown on the Plans, these contract documents, and as directed by the Engi-neer. The traffic control plan shall include, at a minimum, one portable changeable message sign positioned on both eastbound and westbound approaches to the work area. Full compensation for removing and salvaging the traffic control equipment and materials that are to be reused or reset in the project shall be considered included in the Contract lump sum price paid for traffic control system and no additional compensation will be allowed therefor. Partial payment for traffic control shall be based on the percentage of total value of work completed.
Revised 6/15/17 Contract No. Page 14 of 39
SUPPLEMENTAL PROVISIONS TO STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION
PART 8 LANDSCAPING AND IRRIGATION 800-1 LANDSCAPING MATERIALS. Insert the following:
At all times, landscaping materials prescribed on the Drawings shall take precedence over those spec-ified herein or in the Standard Specifications for Public Works Construction latest Edition (Greenbook).
Within 30 days of contract award, the Contractor shall submit a complete list of all materials proposed to be furnished and installed under this Section, demonstrating complete conformance with the re-quirements specified.
a) Materials list shall include, but not be limited to: Quantity, quality and sources of soil amend-
ments, including fertilizers by type;
b) Quantity, quality and sources of container plant materials by species and size;
c) Quantity, quality and sources of seed by mix and species, and associated hydroseeding mix
materials;
d) Quantity, and quality and sources of rock mulch; and
e) Quantity, quality and sources of organic mulch.
Contractor shall submit copies of cut sheets and chemical analyses for all soil amendments to be used within thirty (30) days of contract award.
Contractor shall submit evidence of the container plant order from a native plant nursery to the City’s designated representative. The source of all container plant propagules and/or seed shall have orig-inated from San Diego County, unless otherwise approved by the City’s designated representative.
Contractor shall submit all seed bag certification tags and a signed certificate from the installer listing quantities and type of materials used in seeding installation. Certification list shall include seed type (genus and species), quantity (weight), analysis, supplier name, geographic location of seed collec-tion, seed purity percentage, seed germination percentage, and date seed was collected and tested. Copies of inspection certificates, required by law, shall be furnished to the City without charge. In addition, the Contractor shall furnish seed samples upon request. Samples of one-half pound of each species or seed mix may be requested by the City’s designated representative, to be drawn at time of delivery to the project site.
Contractor shall warranty all plant material to remain healthy and vigorously growing for one (1) full year from the date of final acceptance of installation by the City’s designated representative. All dead plants shall be replaced before the end of the 120-day plant establishment period. The Contractor's warranty period may be extended in cases where plants are slow to establish. If Contractor fails to replace plants within the thirty (30) daytime limit, the City may replace them at Contractor's expense five (5) days after written notice to Contractor. Contractor shall not be held responsible for failures due to neglect by the City, vandalism, and "Acts of Nature" during warranty period. Such conditions which exempt Contractor from the warranty shall be documented in writing by Contractor and delivered to
Revised 6/15/17 Contract No. Page 15 of 39
City Representative and the City’s designated representative within one (1) week of occurrence for approval.
800-1.1. Topsoil Add the following Salvaged Topsoil Existing topsoil shall be salvaged from all existing native vegetation areas prior to rough grading and shall be stockpiled on site for reuse within the designated revegetation planting areas shown on the Drawings. 800-1.1.5 Container Plant Backfill Mix. Planting backfill shall consist of 100% loose friable native soil with all trash, debris, rocks and clods over 1" diameter removed. Native soil shall be used to backfill all excavated plant pits in the installation of containerized plant materials. 800-1.2Soil Fertilizing and Conditioning Materials.
800-1.2.3 Commercial Fertilizer.
Add the following to the end of the section:
Planting fertilizer shall be two (2) 21 gram 'Agriform' (20-10-5) planting tablets, or approved equal.
800-1.2.4 Organic Soil Amendment.
Replace with the following:
General Soil Preparation
After incorporation of the salvaged topsoil and finish grading, general soil preparation shall be imple-mented and shall include soil amendments broadcast uniformly, on a square foot basis. The amend-ments shall be incorporated homogenously within the top six (6) inches of the soil surface for all re-vegetation and landscape planting areas, as shown on the Drawings.
General soil amendments, per thousand (1,000) sq. ft. basis, shall include the following:
a) Potassium sulfate (0-0-50), @ 6 pounds per 1,000 sq. ft.
b) Triple superphosphate (0-45-0), @ 4 pounds per 1,000 sq. ft.
c) Agricultural gypsum, @ 80 pounds per 1,000 sq. ft.
d) Organic soil amendment, @ 3 cu. yds. per 1,000 sq. ft., sufficient for 2% to 4% soil organic
matter on a dry weight basis. Soil amendment shall have the following characteristics:
• Humus material shall have an acid-soluble ash content of no less than 6% and no more than 20%. Organic matter shall be at least 50% on a dry weight basis.
• pH of the material shall be between 6 and 7.5.
• Salt content shall be less than 10 millimho/cm @ 25° C. on a saturated paste extract.
• Boron content of the saturated extract shall be less than 1.0 part per million.
• Silicon content (acid-insoluble ash) shall be less than 50%.
• Calcium carbonate shall not be present if to be applied on alkaline soils.
• Types of acceptable products are composts, manures, mushroom composts, straw, alfalfa, peat mosses etc. low in salts, low in heavy metals, free from weed seeds, free of pathogens and other deleterious materials.
Revised 6/15/17 Contract No. Page 16 of 39
• Composted wood products are conditionally acceptable [stable humus shall be pre-sent]. Wood based products are not acceptable which are based on red wood or ce-dar.
• Sludge-based materials are not acceptable.
• Carbon: Nitrogen ratio is less than 25:1.
• Compost shall be aerobic without malodorous presence of decomposition products.
• Maximum particle size shall be 0.5 inch, 80% or more shall pass a No. 4 screen.
• Maximum total permissible pollutant concentrations in amendment in parts per million, on a dry weight basis:
arsenic 12 copper 100 selenium 30
cadmium 15 lead 200 silver 10
chromium 200 mercury 10 vanadium 50
cobalt 50 molybdenum 20 zinc 200
nickel 100
Container Plant Backfill
Container plant backfill soil preparation, shall be on a volume basis, and shall be incorporated into planting backfill as shown on the Drawings.
Container plant soil amendments shall include the following:
e) Potassium sulfate (0-0-50), @ ¼ pound per cubic yard
f) Triple superphosphate (0-45-0), @ ¼ pound per cubic yard
g) Agricultural gypsum, @ 2 pounds per cubic yard
h) Organic soil amendment, @ 15% by volume, sufficient for 2% to 4% soil organic matter
on a dry weight basis. Soil amendment shall have the same characteristics as listed above
under general soil preparation.
800-1.2.5 Mulch.
Add the following:
Mulch Types 1 through 6 shall not be used.
Add the following to the end of the section:
Type 7 mulch (organic mulch bark), shall be used for all planting areas to be mulched with
walk on bark, unless otherwise noted on the Drawings. Wood mulch is to be 1/2” to 1-1/2”
fibrous and woody bark mixture of Douglas Fir, and placed in a minimum 3” layer unless
otherwise stated within the Drawings. Contractor shall submit a one cubic foot sample for
approval before installation.
Revised 6/15/17 Contract No. Page 17 of 39
800-1.3 Seed Add the following to the end of the section:
Contractor shall arrange for all seed material to be reserved and/or purchased for the sole purpose of this project. Native seed shall be procured by the Contractor and shall have originated from San Diego County locations, unless otherwise approved by the City’s designated representative. Any special seed collection required shall be conducted by a supplier possessing staff experienced in native seed collection. Seed may be purchased from S&S Seed Company, Carpinteria, CA (805) 684-0436, or an approved equal.
Contractor to furnish seed and hydroseed slurry mix as specified herein and as shown on the Draw-ings. Seed of each species shall be furnished in quantity and quality (meeting specified minimum percentages of purity and germination) as shown on the Drawings. For each seed type not conforming to specified percentage of seed purity and germination, each corresponding seed application rate (Lbs./acre) will be adjusted by the City’s designated representative, using current test results. In-creased seed quantities for this purpose shall be furnished by Contractor at Contractor's cost.
a) Seeds shall be fresh, clean, new crop seed, composed of the varieties mixed in proportions and testing minimum percentage of purity and germination per industry standards.
b) All seed shall be pre-treated as specified in Delivery, Storage and Special Handling. All seed shall have originated from San Diego County, unless approved by the City’s designated rep-resentative.
c) The Contractor is responsible for contacting the seed supplier 30 days after award of contract to arrange for special seed collections and seed pre-treatment as necessary.
Seed shall be delivered in unopened manufacturer's containers bearing original certification labels showing seed type (genus, species), quantity (weight), analysis, supplier name, percentage seed pu-rity, percentage seed germination, and seed test date. All seed shall be labeled according to state and federal law. Seed supplier shall certify to the City’s designated representative, in writing, location and date of seed collection.
Before installation, store seed in a cool, dry place; protect all seed and container plants from vandal-ism, wind, heat, and other conditions that damage or impair seed and plant viability.
The hydroseed slurry mix shall be:
a) seed mix at rates indicated on the Drawings, and based on 1,000 sq. ft.
b) virgin wood fiber mulch @ 60 lbs./ 1,000 sq. ft.
c) “AZ-TAC” binder-tackifier @ 4 lbs./ 1,000 sq. ft. (or approved equal)
d) fertilizer 0-45-0 (triple superphosphate) @ 2 lbs./ 1,000 sq. ft.
e) green slurry marker dye
800-1.4 Plants. 800-1.4.1 General. Add the following to the end of the section:
Plant names indicated in plant palettes conform to Hickman, J.C., 1993, "The Jepson Manual: Higher Plants of California". Alternate references are included from Clarke, Oscar F., 2007, "Flora of the Santa Ana River and Environs". "Native" and "non-native" species will be identified from these two sources.
Plants shall be procured by the Contractor at a native plant nursery. Commercial native plants shall be grown by a nursery possessing a valid California Nursery License and a staff experienced with
Revised 6/15/17 Contract No. Page 18 of 39
propagation of native species. Plants may be purchased from Tree of Life Nursery, San Juan Ca-pistrano, CA (714) 728-0685, or an approved equal.
All plants will be true to name, and one of each tree and no less than 2% of each plant species will be tagged with the name and size of plants in accordance with the standards of practice recommended by the American Association of Nurserymen. The root condition of plants furnished in containers will be checked. The City’s designated representative will check no more than two plants of each species or variety from each source. All plants rendered unsuitable will be rejected and replaced at no addi-tional cost. In case the sample plants are found to be defective, the entire lot or lots of plants repre-sented by the defective samples may be rejected.
All trees and shrubs will be from nurseries in geographical areas with similar climates and transported covered. The specified standard height and diameter will be set by the American Standard for Nursery Stock.
All trees will have a single leader and begin branching no lower than 4 feet from ground, unless oth-erwise indicated on drawings.
Written certifications are required to be submitted to the City upon delivery of the respective materials to the job site. All submitted products may only be used when approved by the City.
Once nursery grown container plants are accepted by the Contractor, all plants not conforming to contract requirements shall be considered defective, and such plants, whether in place or not, shall be marked as rejected and be immediately removed from the site of the work and replaced with ac-ceptable plant materials at the Contractor's expense. All plants shall be of the species, variety, size, age, flower color, and condition as specified herein, or as indicated on the drawings. Under no con-ditions will there be any substitution of plant variety, or reduced sizes for those listed on the accom-panying drawings, except with the expressed written consent of the City.
At least one specimen of each species of plant materials provided to the site shall be labeled with legible water-proof ink indicating the correct botanical name of the plant. Labeled sample plants shall remain on site and shall be maintained by Contractor for identification during planting. Labeled sample plants shall be incorporated into the work at the end of the project.
Plants shall be furnished in species, quantities, and sizes, and at spacing shown on the Drawings, described in the plant lists, and in the specifications herein.
a) Quality and size of all plants shall conform to the California Standard Grading Code of Nursery Stock and shall be No. 1 grade. Caliper, height, and spread shall be average for each listed species. They shall be symmetrical, healthy, vigorous, of normal growth, free from disease, insects, insect eggs and larvae.
b) All plants shall have healthy, normal root systems that consolidate potting soil into a firm root-ball throughout the entire container. Plants shall not be pruned before delivery.
c) All plant material will be subject to inspection and approval by Contractor and the City’s desig-nated representative at the time of delivery to project site.
d) Container stock shall have grown in containers for at least 9 months, but not over twelve (12) months. Samples shall be inspected to ensure that no root bound conditions prevail and that no container plants have cracked or broken rootballs when taken from containers. Plants shall be subject to inspection and approval or rejection at the project site at any time before or during progress of work, for size, variety, condition, latent defects, and injuries. Rejected plants shall be removed from the project site immediately.
e) Identify plant species or varieties correctly on legible, weatherproof labels attached securely to plant before delivery to site (provide one label, minimum, for each species delivered).
Revised 6/15/17 Contract No. Page 19 of 39
f) During delivery, Contractor shall protect plants from vandalism, wind, heat, and other condi-
tions that damage or impair viability of plants. Contractor shall store plants in a cool, dry
place. For prolonged storage on site, a temporary shade cloth structure may be required.
g) At all times, conduct regular watering to keep plants moist. Plants shall be stored on site for
no longer than 2 weeks (14 consecutive calendar days). Plants stored on site longer than
two weeks will be considered defective and shall be replaced, in kind, quantity, and size, by
the Contractor at Contractor's expense.
800-1.5 Headers, Stakes, and Ties.
800-1.5.1 General.
Add the following to the end of the section:
Tree stakes and plant protection cages shall be as prescribed in the details on the Drawings. Materials not specifically described, but required for a complete and proper installation, shall be selected by the Contractor subject to the City’s designated representative approval.
800-2 IRRIGATION SYSTEM MATERIALS. Insert the following:
At all times, irrigation system materials prescribed on the Drawings shall take precedence over those specified herein or in the Standard Specifications for Public Works Construction latest Edition (Green-book).
Submittals
Upon 15 days after Contractor has received the City's Notice to Proceed, the Contractor shall submit to the City’s designated representative of record the following product data:
a) A complete list of materials proposed to be furnished and installed for this scope of work.
b) Manufacturer's specifications, catalog cut sheets, and other data required to demonstrate com-pliance with the specified requirements.
c) Manufacturer's recommended installation procedures which, when approved by the designer of record, will become the basis for accepting or rejecting actual installation procedures used in the field.
Before the installation of any work, prepare a detailed list of each material proposed for use in the project and submit to City’s designated representative for approval. Prepare typed written material list using the following format, as a sample: Double space between each item.
Item No. Description Manufacturer Model No.
1. Pressure Supply Lines Pac. Western Schedule 40 PVC
2. Lateral Lines Pac. Western Class 315, Class 200 PVC
3. Sprinkler Heads Hunter (per irrigation legend)
4. Etc. Etc. Etc.
No substitutions of material or procedures shall be made concerning these documents without the written consent of an accepted equivalent by the City’s designated representative. Equipment or ma-terials installed or furnished without prior approval of the City’s designated representative may be
Revised 6/15/17 Contract No. Page 20 of 39
rejected and the Contractor shall be required to remove such materials from the site at his own ex-pense. Approval of substitution of material and/or products, other than those specified, shall not relieve the Contractor from complying with the requirements of the Drawings and Specifications. The Con-tractor shall be responsible, at his own expense, for all changes by approved substitutions which affect other items of his own work and/or the work of other Contractors.
Samples of the equipment may be required at the request of the City’s designated representative if the equipment is other than that specified.
Contractor shall provide the following incidental materials and equipment to the City’s designated rep-resentative:
a) Two control valve keys.
b) Two wrenches for removing each different type of sprinkler head.
c) Two quick coupler keys. The keys and hose ells shall be of the same manufacturer as the coupling valve.
Record Drawings (As-Builts): Dimension from 2 permanent points of reference, building corners, side-walk, or road intersections, etc., the location of the following items:
a) Point of connection (POC).
b) Routing of pressurized main line pipe (dimension max. 100' along routing).
c) Shut off valves.
d) Control valves.
e) Quick coupling valves.
f) Other related equipment as directed by the City’s designated representative.
Operation and Maintenance Manuals: Prepare and deliver to the City’s designated representative within ten calendar days before completion of construction hard cover binder with three rings contain-ing the following information:
a) Index sheet stating Contractor's address and telephone number, list of equipment with name and addresses of local manufacturer's representative.
b) Catalog and parts sheets on every material and equipment installed under this contract.
c) Guarantee statement.
d) Complete operating and maintenance instructions on all major equipment.
e) In addition to the above-mentioned maintenance manuals, show evidence in writing to the City’s designated representative at the conclusion of the project that this service has been rendered.
800-2.1 Pipe and Fittings.
800-2.1.1 General.
Insert the following before the first paragraph:
Due to the scale of drawings, it is not possible to indicate all offsets, fittings, sleeves, etc., which may be required. Carefully investigate the structural and finished conditions affecting all of this work and plan this work accordingly, furnishing such fittings, etc., as may be required to meet such conditions. Drawings are generally diagrammatic and indicative of the work to be installed. The work shall be installed in such a manner as to avoid conflicts between irrigation systems, planting and architectural
Revised 6/15/17 Contract No. Page 21 of 39
features.
800-2.1.6 Plastic Pipe.
Add the following subsection:
Identify all pipes with the following indelible markings:
Manufacturer’s name
Nominal pipe size
Schedule of class
Pressure rating psi
NSF (National Sanitation Foundation) seal of approval
Date of extrusion
Pipe (solvent weld type): manufacture from virgin polyvinyl chloride compound in accord with ASTM D1784 or ASTM D2241, cell classification 12454B; hydrostatic design stress rating no less than 2,000 psi.
Fittings shall be standard weight, Schedule 40, injection molded PVC, and comply with ASTM D1784, cell classification 13454B. Threads (where required) shall be injection molded type. Tees and ells shall be side gated.
Threaded nipples shall be standard weight, Schedule 80 with molded threads.
The main line pressure pipe and lateral pipe shall be Schedule 40 PVC IPS Type 1, Grade 1 pipe. All plastic pipes will bear the following markings: the manufacturer’s name, nominal pipe size, or sched-ules.
The main line fittings will be fitted together and will be solvent welded using pipe primer ASTM F656 and pipe solvent ASTM D-2564. All other fittings will be fitted together, will be solvent welded with pipe solvent ASTM D-2564, NSF or approved equal.
800-2.1.7 Joint Cement and Primer.
Add the following subsection:
Non-pressure plastic pipes and fittings shall be cemented using a 100% active solvent, Christy’s Blue Glue. Pressure plastic pipes and fittings shall be coated with a primer and then with a 100% active solvent, Christy’s Blue Glue for 4” and smaller and Grey 4” and larger. Both primer and solvent shall be similar in all respects to that manufactured by Christy’s or approved equal.
800-2.2 Valves and Valve Boxes.
800-2.2.2 Gate Valves.
Replace the section in its entirety with the following:
800-2.2.2 Shut Off Valves.
Shut off valves shall be PVC ball valve with ABS handle, size per Drawings.
800-2.2.7 Valve Boxes.
Replace the section in its entirety with the following:
Valve boxes shall be fabricated from a durable plastic material resistant to weather, sunlight and
Revised 6/15/17 Contract No. Page 22 of 39
chemical action of soils. They shall be green in color. The cover shall be secured with a stainless-steel bolt mechanism. The cover shall be capable of sustaining a load of 1,500 pounds. Valve box extensions shall be by the same manufacturer as the valve box. All valve boxes shall be as manufac-tured by Ametek, Carson, or an approved equal.
a) Quick coupling valve boxes shall be round. The cover shall be heat branded with the
letters “QCV”, 2” high.
b) Shut off valve boxes shall be round. The cover shall be heat branded with the letters “SOV”,
2” high.
c) Remote control valve boxes shall be 12” x 18” concrete with metal lid. The cover shall be
welded with the letters “RCV” and the valve number in characters 2” high. Electric remote
control valves will be as noted on the drawing, and will be identified per plan and/or with
Christy’s tag or equal.
d) Splice boxes shall be 12” x 18”. The cover shall be heat branded with the letters “SB”, 2” high.
e) Provide at all locations indicated, 18 inches minimum from hardscape.
f) Fill area under box with minimum of 3 cubic feet of pea gravel before box is installed.
SECTION 801 INSTALLATION 801-1 General. Add the following: The Contractor shall maintain all landscape and private property surrounding the construction to the greatest extent possible. Any landscape, plants, walls, or steps stones disturbed shall be restored to pre-construction condition. The Contractor shall hold a valid California Landscape Contractors License, Class C-27, and shall provide a project foreman who has previously overseen successful public landscape projects of at least 5 acres in size in Southern California, including native revegetation.
Contractor shall attend a pre-construction meeting with the City and the City’s designated representa-tive before the start of work.
At all times planting, seeding, irrigation system, and associated landscape treatments shall be installed as prescribed and detailed on the Drawings; these prescriptions shall take precedence over those specified herein or in the Standard Specifications for Public Works Construction latest Edition (Green-book).
Contractor shall protect in place all existing native plant materials adjacent to the limits of work and newly planted material. Contractor shall be responsible for all costs associated with the replacement of damaged existing native plant material (at a 5:1 replacement ratio) or newly planted material at a 1:1 replacement ratio.
Where it is necessary to excavate adjacent to existing vegetation, use all possible care to avoid injury to trees and shrubs and tree/shrub roots. Excavation in areas where 2-inch and larger roots occur shall be done by hand. Roots 2 inches and larger in diameter, except directly in the path of pipe or conduit, shall be tunneled under and shall be heavily wrapped in burlap, to prevent scarring or exces-sive drying. Where a ditching machine is run close to trees having roots smaller than 2 inches in diameter, the wall of the trench adjacent to the tree shall be hand trimmed, make clean cuts through. Roots 1-inch and larger in diameter shall be painted with coats of Tree Seal, or equal. Trenches adjacent to trees should be closed within 24 hours. Where this is not possible, the side of the trench adjacent to the tree shall be kept shaded with burlap or canvas.
Revised 6/15/17 Contract No. Page 23 of 39
801-2 EARTHWORK AND TOPSOIL PLACEMENT. 801-2.2 Topsoil Preparation and Conditioning.
801-2.2.1 General.
Insert the following before the first paragraph:
During weed abatement procedures, the Contractor is responsible for the erection of all signs and barriers required to prevent intrusion into the treated areas and to notify the public. No material or methods used for weed abatement shall affect existing vegetation to remain/protected, the landscape plantings, or hydroseed germination. No material or method shall render the job site unusable for more than 10 calendar days from date of application.
Before spreading soil amendments and installation of irrigation systems, cross-rip or otherwise till to a depth of 6” all planting areas to receive soil preparation. All rock 1” and larger shall be removed to a depth of 12”. Dispose of all debris off-site according to State and local regulations.
To all planting areas, uniformly broadcast soil amendments and thoroughly incorporate to minimum 6” depth by means of a rototiller or equal.
Rough grade has been left within one tenth of one foot of finish grade. Work such as fine grading and light cultivation are required of all planting areas indicated on the Drawings to prepare grades before seed or stolon planting. After approximate finished grades have been established, all soil areas shall be lightly compacted and settled by application of heavy irrigation to a minimum depth of 6”. Contractor shall monitor the irrigation and shall adjust the irrigation run time to assure no erosion occurs.
All landscape areas will be graded to finish grades by the landscape contractor, reestablishing flow lines as approved before amending the soil. Finish grades will be inspected upon completion.
All existing weeds and debris within the designated planting areas are to be completely removed and removal work shall be approved by the City’s designated representative before amending site soils. Prior to the application of soil amendments the Contractor shall implement a “grow and kill” cycle over an approximate three week period, utilizing the irrigation system to promote germination of any rem-nant weed and/or exotic non-native plant species. The contractor shall kill/control all re-emergent weeds and exotic species through hand removal and/or through herbicide use. Only herbicides ap-proved for use within the City of Carlsbad can be utilized.
The Contractor will not proceed with planting work until the grow and kill cycles have been completed and finish grades have been inspected and accepted by the City.
801-2.2.2 Fertilizing and Conditioning Procedures.
Insert before the first paragraph:
Soil preparation shall be conducted after finish grades are established and after the “grow and kill” cycle has been completed.
Soil amendments for the planting areas are as specified herein in Section 800-1.2 and as shown on the Drawings. Soil amending shall be conducted before implementation of planting and seeding. All existing weeds and debris are to be completely removed and removal work approved by the City’s designated representative before amending site soils.
801-2.3 Finish Grading.
Add the following to the end of the section:
After the foregoing specified deep watering (Section 801-2.2.2), minor modifications to grade may be required to establish the final grade for planting. These areas shall not be worked on until the moisture content has been reduced to a point where working it will not destroy soil structure.
Revised 6/15/17 Contract No. Page 24 of 39
Finished grading shall ensure proper drainage of the site. Finished earth berm surfaces shall be smooth and even between contours. Surface drainage shall be away from all paved surfaces. Elimi-nate all erosion scars.
The Contractor shall request a review by the City for recommended approval of the final grades and elevations before beginning planting operations.
801-4 PLANTING. 801-4.1 General.
Add the following to the end of the section:
Plants shall not be allowed to dry out before or during installation. Contractor shall keep exposed roots
moist by means of wet saw dust, peat moss, or burlap at all times during planting operations. Roots shall not be exposed to air except when being placed in ground. Wilted plants, improperly located or installed, whether in place or not, shall not be accepted and shall be replaced at the Contractor's
expense. Contractor shall be responsible for watering all container plants on site while being stored before planting.
No area shall be planted where weeds and/or exotic species are present or there is evidence that a weed crop will germinate.
Before excavation of planting pits or placing of plant materials, the Contractor shall locate all existing underground utility lines and irrigation lines and take proper precautions to avoid damage to such improvements. In the event of a conflict between such lines and plant locations, notify the City who shall arrange for the relocation of one or the other. The Contractor assumes responsibility for expenses incurred for all repairs of damage to utility lines and existing irrigation lines resulting from inadequate precautions by Contractor.
Actual planting shall be performed during those periods when weather and soil conditions are suitable in accordance with locally accepted horticultural practice, and/or as approved by the City’s designated representative. Seeding shall be conducted when wind and temperature are normal for season in which work is done. In cases of unseasonable weather, work shall be delayed until weather returns to normal.
All excavated holes shall have vertical sides with roughened surfaces and shall be twice the diameter of the root ball. Holes shall be, in all cases, large enough to permit handling and planting without injury or breakage of root balls or roots. After holes have been dug, they are to be filled with water and allowed to drain.
Excess soil, rocks, and debris generated from the planting holes shall be spread evenly on the site as directed by the City and the City’s designated representative.
Contractor shall protect in-place all existing native plant materials outside of the limits of work and/or as otherwise directed by the City’s designated representative.
Plants shall be installed at approved locations with specified existing on-site soil, unless otherwise directed by the City’s designated representative. The plants shall be placed in the planting pits on the backfill soil which has been hand tamped only. Fill plant pits with water and allow to completely drain before the placement of the plants. After setting the plants, the remaining backfill materials shall be carefully tamped and water settled around each rootball to fill all voids. Plantings will receive amend-ments as specified herein.
Each container plant shall be placed in the center of the hole, set plumb and held rigidly in position until the backfill soil has been tamped and water settled around each root ball.
Revised 6/15/17 Contract No. Page 25 of 39
All plants shall be set at such a level that after settling they bear the same relationship to the surround-ing finish grade as they bore to the soil line grade in the container (approximately 1-inch above finish grade at time of planting).
Immediately after installation, Contractor shall water, by hose or irrigation, each plant until soil around roots is moist from bottom of hole to finish grade.
Install weed-free bark mulch layer to a uniform 3" depth, in an 18" diameter area around base of each container. Hold back mulch 3" from plant trunks.
Throughout the Plant Establishment Period, Contractor shall provide water to each container plant using the prescribed irrigation systems, and as directed by the City’s designated representative.
Contractor shall remove from the project site all non-native debris accumulated during the duration of the project and shall dispose of material at County landfill or a site approved by the City.
801-4.2 Protection and Storage. Add the following after the first paragraph:
Deliver all items to the job site in their original containers with all labels intact and legible at time of the City’s review. Immediately remove from the site all plants which are not true to name, and all materials which do not comply with the specified requirements. Use all means necessary to protect plant ma-terials before, during, and after installation and to protect the work and materials of all other trades. In the event of damage, immediately make all repairs and replacements necessary to the recom-mended approval of the City and at no additional cost to the City.
801-4.3 Layout and Plant Location. Add the following after the first paragraph:
The layout of locations for plant materials shall be flagged in the field by the Contractor and approved by the City’s designated representative before plant installation. All container plants shall, if necessary, be re-located as part of contract as directed by the City’s designated representative.
801-4.9 Erosion Control Planting. 801-4.9.3 Seeding and Mulching. Replace with the following:
Seed application shall occur between October through February, or as otherwise directed by the City’s designated representative. Seed shall be installed using machine hydroseed methods as indicated on the Drawings.
a) Contractor shall protect in place all existing native plant materials adjacent to the limits of work and newly planted material. Contractor shall be responsible for all costs associated with the replacement of damaged existing native plant material (at a 5:1 replacement ratio) or newly planted material at a 1:1 replacement ratio.
b) Before seed application, soil surface shall be tilled and/or hand raked to create crevices in which seed will collect.
c) No area located within a planting area shall be seeded where weeds are present or there is evidence that a weed crop will germinate. All weeds shall be removed before seeding, as specified herein.
d) Any concentrated development of weed growth appearing in the seed mix planting areas dur-ing the Plant Establishment Period shall be removed on a monthly basis. The Contractor shall remove such concentrations of weeds by hand.
e) Seed mix shall consist of a mixture of seed and slurry components as prescribed on the Draw-ings and herein.
Revised 6/15/17 Contract No. Page 26 of 39
801-4.9.5 Watering. Add the following to the end of the section:
Immediately after planting, apply water to each shrub by means of a hose. Apply water in a moderate stream in the planting hole until the material about the roots is completely saturated from the bottom of the hole to the top of the ground.
Apply water in sufficient quantities and as often as seasonal conditions require in order to keep the planted areas sufficiently moist at all times, well below the root system of grass and plants.
All groundcover areas shall be maintained damp at all times and irrigation should be adjusted accord-ingly. This normally would involve 4 to 6 watering periods daily, each watering period (ON) regulated to just dampen the mulch without creating run-off.
Intervals between irrigation (OFF) sequence should be judged by the length of the time the mulch remains damp. Once the mulch begins to dry out, the water (ON) sequence should be repeated.
Add the following section:
801-4.10 Planting Observations. The Contractor will contact the City’s designated representative at least two Working Days in advance of each planting work observation. An observation is required at each of the following steps listed below:
g) Observation of all materials, other than plants, delivered to site.
h) Observation of rough grade.
i) Acceptance of organic mulch and taking of soil samples.
j) Observation of soil amendment work.
k) Observation of plant locations field-marked for planting, but before planting holes are exca-
vated.
l) Observation of plants at nursery and upon delivery to the project site for quality, size, vigor,
and appropriate species.
m) Observation of planting progress.
n) Pre-Maintenance Observation: Substantial completion of hardscape and planting work before
the start of the Plant Establishment Period; this observation shall be coordinated with the pre-
maintenance observation of the irrigation system installation. This is not final acceptance and
does not relieve the Contractor from any of the responsibilities in the contract.
A written "punch-list" indicating all items to be corrected and the beginning date of the maintenance period will be sent to the Contractor. This is not final acceptance and does not relieve the Contractor
from any of the responsibilities in the contract. Contractor shall complete punch-list items within ten (10) calendar days. Delay of completion of punch-list items will delay the beginning of the 120-day Plant Establishment Period. Written approval by City will establish the beginning of the Plant Estab-
lishment Period.
Refer to section 801-5.8 for the required irrigation system observations.
Refer to section 801-6.13 for project Final Acceptance requirements and procedures.
Revised 6/15/17 Contract No. Page 27 of 39
801-5 IRRIGATION SYSTEM INSTALLATION. 801-5.1 General. Add the following to end of the first paragraph:
All scaled plan dimensions are approximate. Check and verify all size dimensions, system design pressures, flow requirements as shown on Drawings.
Replace the second paragraph with the following:
Contractor shall connect to existing water services at locations indicated on the Drawings and make any minor changes in location necessary due to actual site conditions as a part of this Contract.
Add the following to the end of the section:
The City of Carlsbad shall provide the water meter for the irrigation system in the size and location as specified. The contractor shall tie into the water meter at the designated “Point of Connection” and shall install applicable backflow protection as shown on the Drawings.
Contractor shall guarantee all equipment, materials, and labor furnished or performed under the con-tract against defects in design, materials, and workmanship for a period of one year, unless otherwise specified. The guarantee shall start from the date of final acceptance of work at the end of the 120-day plant establishment period. All equipment and workmanship found to be defective within the guar-antee period shall be replaced and installed by the Contractor at Contractor's expense. Replacement equipment shall be the same model and manufacturer as specific in the irrigation legend. Replacement equipment shall be furnished and installed as originally specified.
Manufacturer’s directions and detailed drawings shall be followed in all cases where the manufac-turer’s furnishings are used in this Contract for furnish directions covering points not shown in the drawings and specifications. Work called for on the drawings by notes or details shall be furnished and installed whether or not specifically mentioned in the specifications.
The Contractor shall not install the irrigation system as shown on the drawings when it is obvious in the field that obstructions, grade differences or discrepancies in equipment usage or area dimensions exist that might not have been considered in the design. Carefully check all grades to be sure that installation may safely proceed before starting work on the irrigation system. Such obstructions or differences shall be brought to the attention of the City’s designated representative. In the event this notification is not performed, the Contractor shall assume full responsibility for any revision necessary at no cost to the City.
Before excavation for irrigation piping or equipment, Contractor shall locate underground utility lines and existing irrigation lines and take proper precautions to avoid damage to such improvements. In the event of a conflict between such lines and irrigation piping or equipment locations, Contractor shall notify the City's representative and arrangements will be made for relocation as necessary. The Con-tractor assumes responsibility for making repairs for damages resulting from work as herein specified. Exercise extreme care in excavating and working near existing utilities. Contractor will be responsible for damages to utilities which are caused by his/her operations or neglect.
Contractor shall examine surfaces for conditions that will adversely affect execution, permanence and quality of work. Contractor shall verify that grading has been completed and the work of this section can properly proceed. Contractor shall exercise extreme care in excavating and working near existing utilities. Contractor is responsible for damages to utilities which are caused by his operations or ne-glect. Check existing utility drawings for locations.
All existing plant material to remain, which are within the project area limits shall be tagged and iden-tified by the City’s designated representative for the Contractor before start of work. Contractor shall provide the required maintenance to ensure plant materials are protected during construction. All na-tive vegetation outside of the revegetation area limits shall be protected-in-place. All existing plant
Revised 6/15/17 Contract No. Page 28 of 39
material shall be protected at all times from damage by workers and equipment. All minor damages to existing plant materials shall be repaired at the Contractor's expense.
Damage to a tree or shrub, which results in death or permanent disfiguration, shall result in the Con-tractor's complete removal of said tree or shrub, including roots, from the site. The Contractor shall replace the plant material as established by the City’s designated representative with one of equal value at his/her own expense. The City’s designated representative shall be the sole judge of the replacement of any plant material.
Before installation, stake out all pressure supply lines, non-pressure lateral lines, valves, and location of sprinkler heads; said layout shall be approved by the City’s designated representative before instal-lation.
Install select and temporary irrigation components above grade at locations indicated and as pre-scribed and detailed on the Drawings.
801-5.2 Irrigation Pipeline Installation.
801-5.2.1 General.
Replace the fourth paragraph with the following:
Plastic pipe and threaded fittings shall be assembled using Teflon tape applied to male threads only. Tape all open ends of pipe during installation to prevent entry of any foreign matter into the system.
Add the following section:
801-5.8 Irrigation System Observations. Contractor shall request site observations at least 48 hours in advance of all required reviews of the City’s designated representative. In the event the Contractor calls for a site visit in which said visit cannot move forward due to lack of preparedness by the Contractor, and needs to get canceled or rescheduled, the Contractor shall be responsible for reimbursing the City’s designated representative at his current billing rates per hour, portal to portal (plus transportation costs), for the inconvenience. No further site visits will be scheduled until this charge has been paid and received. Observation of the work shall not relieve the Contractor of the obligation to fulfill all conditions of the contract, nor requirements of the local jurisdictions.
Project review for irrigation installation by the City’s designated representative shall be scheduled for the following operations:
a) Layout of the water source point of connection and all main line and lateral line piping.
b) Completion of layout of irrigation systems.
c) Main Line Pressure Testing: At completion of installation, during testing, and before back-filling.
d) Four (4) hour pressure test of all irrigation main lines, valves and other pressurized com-ponents.
e) Inspection of wires before trench backfill and/or during irrigation installation.
f) Operation and Adjustment Test: Adjust and test all installed irrigation rotor, spray, and bub-bler systems for coverage and water application before the start of planting operations.
g) Pre-Maintenance Observation: The entire irrigation system shall be completely installed and operational; this observation shall be coordinated with the pre-maintenance observa-tion of the planting installation before the start of the Plant Establishment Period. This is not final acceptance and does not relieve the Contractor from any of the responsibilities in the contract.
Revised 6/15/17 Contract No. Page 29 of 39
A written "punch-list" indicating all items to be corrected and the beginning date of the maintenance period will be sent to the Contractor. This is not final acceptance and does not relieve the Contractor from any of the responsibilities in the contract. Contractor shall complete punch-list items within ten (10) calendar days. Delay of completion of punch-list items will delay the beginning of the 120-day Plant Establishment Period. Written approval by City will establish the beginning of the Plant Estab-lishment Period. During the Plant Establishment Period, Contractor shall schedule site observation visits with the City’s designated representative monthly.
Contractor shall provide “walkie-talkie” equipment and/or personnel to maintain communication from review area to automatic controllers and provide up-to-date as-built drawings at each review. In the event the Contractor schedules any review and the system is not fully ready, record drawings are not current, or required corrective work has not been completed, the Contractor shall be responsible for reimbursing the City’s designated representative at an hourly rate, plus all travel expenses. No further reviews will be conducted until this charge is paid.
Refer to section 801-4.10 for the required planting observations.
Refer to section 801-6.13 for project Final Acceptance requirements and procedures.
801-6 MAINTENANCE AND PLANT ESTABLISHMENT. Insert the following after the first paragraph:
Upon substantial completion of all specified installation work and with written approval from the City’s designated representative, Plant Establishment Period shall begin, and shall extend for no less than 120 continuous calendar days. The Contractor shall perform all maintenance services described herein for the duration of the Plant Establishment Period.
During the Plant Establishment Period, Contractor shall schedule monthly site observation visits with the City’s designated representative. If necessary, the Plant Establishment Period shall be extended when, in the opinion of the City’s designated representative, improper maintenance and/or possible poor or unhealthy condition of planted materials are evident at the termination of the scheduled Plant Establishment Period. Contractor shall be responsible for additional project site maintenance at no charge until all of the work is completed and acceptable to the City’s designated representative.
Insert the following subsections:
801-6.1 Planting Maintenance Operations The Contractor shall continuously maintain all involved planting areas of the Contract during the pro-gress of work and during the Plant Establishment Period, until final acceptance of work by the City’s designated representative.
a) Planting maintenance operations shall begin immediately after all plant/seed materials are in-stalled per the approval of the City’s designated representative. Plant material shall be kept in a healthy, optimum growing condition. Plants shall not be pruned or fertilized during the Plant Establishment Period. Pesticides and herbicides shall not be used during the maintenance period unless approved and/or directed by the City and the City’s designated representative.
b) Weedy, non-native species, as defined by the City’s designated representative, may invade planting areas and become a problem before or during the establishment of native plant asso-ciations. Throughout the maintenance period, these species should be hand removed as soon as they begin to invade and before they become too large for hand extraction.
c) All damage caused by Contractor during the operations, resulting from a malfunction of in-stalled work during the Guarantee Period, shall be repaired at Contractor's expense.
Revised 6/15/17 Contract No. Page 30 of 39
d) Maintenance of plant material shall include proper irrigation, control of weeds and exotic spe-cies, and control of plant diseases and animal pests (e.g., gophers, etc.).
e) Project maintenance shall include all repairs to the revegetation/mitigation area caused by hu-man activities and the repair of damage to plantings caused by animal and other pests.
The Contractor shall maintain all plants in a vigorous and thriving condition by irrigating, weeding, cultivating, and other necessary operations during the entire period of installation, Plant Establishment Period, and until final acceptance by the City’s designated representative. Improper maintenance, which may cause poor condition of planted material at termination of the scheduled contract period, will cause postponement of final acceptance. Refer to subsequent subsections for additional require-ments and prescriptions.
a) The Contractor shall conduct weed removal activities in planting areas on a continual basis following plant installation. "Plant installation" includes installation of container plants and seeding. "Weed removal" includes the removal of weeds, their root system, and removal from the site, and/or other treatments approved by the City’s designated representative.
b) The Contractor shall be responsible for keeping all planted areas free of target exotic species during the maintenance period, as indicated herein and on the Drawings.
c) The Contractor shall review the site for exotic species and exotic species sprouts on a monthly basis for the duration of the Plant Establishment Period. Any exotics or weeds that have ger-minated or re-sprouted shall be treated and removed from the site each month (minimum) as specified herein.
d) Contractor shall be responsible for immediately controlling any insect infestations and diseases that may spread throughout planted areas.
e) Contractor shall be responsible for monitoring and control of herbivory of plants and shall in-form the City and the City’s designated representative within 24 hours of discovery, who shall then prescribe remedial action. Any remedial action such as fencing and/or protective cages shall be provided, at no additional cost.
f) Native species leaf and branch drop shall be retained in place unless specifically designated for removal.
g) Contractor shall remove and dispose off-site all weeds, exotic plants and non-organic debris. Removal of trash and litter shall continue on a regular basis during the Plant Establishment Period. Organic debris resulting from weed/exotic plant removal shall be removed from the site(s) and disposed of at County landfill to avoid further introduction of undesirable exotic seed and propagules.
h) Contractor shall monitor for erosion within the revegetation site and shall prohibit gullies, rills and sheet erosion, bare soil areas and silt deposition from occurring. Erosion control shall emphasize prevention. If required, repair of eroded areas may include redirection or dissipation of the water source and re-contouring of soil, followed by seeding, mulching, and planting as directed by the City’s designated representative. The plant palette for areas needing re-seed-ing or replacement of plants shall conform with the original plant and seed species and quan-tities. Invasive/exotic species are prohibited for use as erosion control.
i) Contractor shall be responsible for the maintenance of all erosion control measures. Contrac-tor shall install additional erosion control measures as prescribed by the City’s designated rep-resentative after evaluation of erosion problems, on a case-by-case basis.
801-6.2 Plant Performance The Contractor shall be responsible for plant performance for the 120-day Plant Establishment Period; the City shall be responsible for plant performance during years 1-5 (Table 1 below).
Revised 6/15/17 Contract No. Page 31 of 39
a) All container plantings will be inspected by the City’s designated representative at 30, 60, 90 and 120 days after planting. Contractor shall immediately replace all dead, damaged, or dis-eased plants in-kind and at a 1:1 replacement ratio, to achieve 100% survival at the end of 120 days.
b) All seeded areas will be inspected by the City’s designated representative 90 days after seed-ing. Contractor shall re-seed all seeded areas that have not reached 20% germination cover. Contractor shall re-seed all bare areas greater than 100 square feet in size.
c) Contractor shall keep exotic plant growth controlled throughout the Plant Establishment Period. No planting area will be approved that supports more than 10% absolute coverage of non-native weed species. Resprouts or seedlings of exotic species shall not be allowed to obtain a height of more than four feet (4') before being retreated or removed.
d) Contractor shall schedule and perform monthly maintenance visits as necessary to prevent exotic species and weeds from producing fruit or setting seed. Failure to kill exotic and weeds before setting seed or producing fruit shall result in the Contractor having to perform an addi-tional weeding effort of the affected area at no cost to the City. Additional weeding efforts will be required to be performed as directed by the City’s designated representative.
Period Percent Survival Container Plants Percent Relative Native Cover* Percent Relative Non-Native Cover*
120-days 100% 50% 15%
* Native and non-native cover to be assessed on a visual basic by City Representative. 801-6.3 Litter. Add the following subsection:
All areas in the work sites shall be kept free of, but not limited to, the following items: bottles, glass, cans, paper, cardboard, metallic items, and other debris on a daily basis. Contractor shall promptly remove from the work area all debris generated by their performance.
801-6.4 Use of Chemicals. Contractor shall submit a list of all chemical herbicides, pesticides, and rodenticides proposed for use under this contract for approval by the City’s designated representative. Materials included on this list shall be limited to chemicals approved by the State of California Department of Food and Agriculture, and shall include the exact brand name and generic formulation. The use of any chemical on the list shall be based on the recommendations of a licensed pest control advisor where required by law. The use of chemicals shall conform to the current County of Riverside Agriculture Commissioner regula-tions. No chemical herbicide, rodenticide, or pesticide shall be applied until its use is approved, in writing, by the City’s designated representative as appropriate for the purpose and area proposed.
801-6.5 Disease and Pest Control. Contractor shall regularly inspect all landscaped areas for the presence of disease, snail, insect or rodent infestation. The Contractor shall advise the City’s designated representative, in writing, within four days when any disease, snail, insect or rodent infestation is found; he shall identify the disease, snail, insect or rodent and specify control measures to be taken. The Contractor shall implement con-trol measures, exercising extreme caution in the application of all spray materials, dusts or other ma-terials utilized.
Approved control measures shall be continued until the disease, snail, insect or rodent is controlled to the satisfaction of the City’s designated representative. The Contractor shall utilize all safeguards necessary during disease, snail, insect or rodent control operations to ensure safety of the public and
Revised 6/15/17 Contract No. Page 32 of 39
the employees of the Contractor.
Contractors shall perform at their sole expense the following services:
a) All Work involving the use of chemicals will be accomplished by a State of California li-
censed pest control operator. A written recommendation by a person possessing a valid
California Pest Control Advisor License is required before chemical application where re-
quired by law.
b) All chemicals requiring a special permit for use shall be registered by the Contractor with
the County Agricultural Commissioner’s Office and a permit obtained with a copy given to
the City’s designated representative before use.
c) A copy of all forms submitted to the County Agricultural Commissioner shall be given to
the City’s designated representative on a monthly basis.
d) All regulations and safety precautions listed in the “Pesticide Information and Safety Man-
ual” published by the University of California will be adhered to.
801-6.6 Weed Control. For the purpose of these specifications, a weed will be considered as “any undesirable or misplaced plant.” All areas within the specified maintenance area, including but not limited to, turf grass, shrub and ground cover areas, planters, tree wells, and hardscape areas shall be kept free of weeds at all times. Weed removal shall consist of complete removal of all weeds, including top growth and roots, as the weeds appear.
Weed control shall be performed a minimum of one time per week. Bare areas between plants shall be cultivated by hand on a weekly basis. Weeds shall be controlled either by hand, mechanical or chemical methods; however, the City’s designated representative may restrict the use of chemical weed control in certain areas.
801-6.7 Method of Irrigation. Irrigation systems shall be as prescribed on the project Drawings and Specifications. However, failure of the existing irrigation system to provide full and proper coverage and water application shall not relieve the Contractor of the responsibility to provide adequate irrigation with full and proper coverage and water application to all areas in the work site. All areas receiving marginal coverage shall be irrigated by a portable irrigation method. The Contractor shall furnish all hoses, nozzles, etc., neces-sary to accomplish this supplemental irrigation. Care shall be exercised to prevent a waste of water, erosion, and/or detrimental seepage into existing underground improvements or structures.
At all times, irrigate planting areas slowly. Use multiple starts and soaking periods between irrigation cycles. Slightly moist soils are easier to wet than dry soils. Balance soil aeration with soil moisture.
801-6.8 Irrigation Maintenance and Repairs. Contractor shall maintain all irrigation systems, at no additional cost to the City, in such a way as to guarantee proper coverage and full working capability. The Contractor shall make whatever adjust-ments may be necessary to prevent overspray or excessive runoff into areas not meant to be irrigated.
Contractor shall repair or replace inoperable irrigation equipment to maintain a fully operational sys-tem, including but not limited to, pressure pipes from the water meter to the control valves, all irrigation pipes, all manual and automatic valves, pumps used for the irrigation systems, backflow devices, fil-ters, strainers, pressure regulators, sprinkler heads, irrigation clamps and stakes, anti-drain valves, quick couplers, electrical wiring from the controller to the solenoid valves, emitters, drippers, valve boxes, controllers, valve markers, batteries, fittings and risers.
Revised 6/15/17 Contract No. Page 33 of 39
a) Maintenance includes, but is not limited to, tightening of loose fittings and packing nuts;
flushing pipes, valves, filters, strainers, and backflow devices; adjusting sprinklers, bub-
bler nozzles and drip systems; adjusting anti-drain valves and pressure regulators; adjust-
ing and lubricating controllers; flushing drip irrigation lines; and cleaning bubbler nozzles
and sprinklers.
b) Contractor shall repaint by hand all backflow devices, backflow cages, valve box lids, curb
faces and curb tops; additional painting may be required as directed. Labor shall be pro-
vided at no additional cost to the City; however, the cost of paint shall be incurred by the
City.
Irrigation repairs shall be made within the following time limits:
Mainline irrigation breaks shall be repainted within two hours of identification or notification.
All other irrigation repairs shall be made within one calendar day of identification or notifica-
tion.
Replacement of irrigation components shall be with originally installed materials of the same size and quality. Substitutions shall be approved by the City’s designated representative in writing before in-stallation.
801-6.9 Water Conservation. Contractor shall turn off all irrigation systems during periods of rainfall and/or times when suspension of irrigation is desirable to conserve water while remaining within the guidelines of good horticulturally acceptable maintenance practices. Contractor shall comply with all City of Corona Ordinances and/or Resolutions which relate to water conservation. Failure to comply with Section 29 may result in an equitable amount deducted from the Contractor’s payment.
801-6.10 Plant Care. All plants shall be adequately irrigated to maintain health and vigor. Irrigation run-off and overspray shall be minimized. Plants shall be irrigated to promote deep root growth.
Plants shall be fertilized prior to the end of the 120-day plant establishment period, as necessary to maintain horticulturally acceptable health and color. Maintenance fertilizer shall be Calcium Ammo-nium Nitrate (27-0-0) (“Simplot”, “Yara”, or approved equal product) at 4 lbs./1,000 sq. ft..
Apply gypsum at 15 pounds per 1,000 sq. ft., prior to the end of the 120-day plant establishment period.
Where plants show signs of failure to grow at any time during the life of the contract, including the specified maintenance period, and where plants are so injured, damaged, dead or diseased as to render them unsuitable for the intended purpose, the Contractor shall replace plant materials at a 1:1 ratio, i.e., (1) new plant for each (1) plant removed within thirty (30) days of receipt of written notice by the City’s designated representative and at no additional cost to the City. Plants used for replacement shall be the same kind and size as specified in the original plant list. Replacement plants shall be furnished, planted, and fertilized as originally specified, without cost to the City.
801-6.11 Green Waste Disposal.
Add the following subsection:
Green waste shall be defined as tree and shrubbery trimmings, grass, weeds, leaves, wood chips and other garden organic materials. Contractor shall be responsible for recycling all green waste gener-ated from their contract performance. Contractor shall have the duty to keep all green waste from being contaminated to an extent it no longer can be recycled. Contractor shall deliver all green waste to a City approved reclamation site, for the purposes of recycling. Contractor shall submit a monthly
Revised 6/15/17 Contract No. Page 34 of 39
report identifying the weight and/or volume of green waste recycled during the preceding month. Pay-ment for green waste disposal shall be included in the Bid price of all applicable bid items.
801-6.12 General Cleanup. Remove all trash and accumulated debris from the work sites. In addition, dog feces are also to be removed from all planting and ground cover areas. All areas under maintenance, and other desig-nated areas, will have trash removed between 6:00 AM and 9:00 AM daily, five days per week (Mon-day through Friday).
The Contractor is responsible for removal of all weeds and non-native species growing in and imme-diately adjacent to the planting areas. The Contractor is responsible to ensure that all paved surfaces are cleared of all dirt and debris within 4 feet of all areas adjacent to maintenance responsibilities. Walkways shall be cleaned immediately following installation and maintenance work by use of power sweeping or blower equipment not less than once per week.
All drains and catch basins shall be kept free of siltation and debris at all times. All drainage areas and V-ditches shall be kept clean weekly by the Contractor.
Accumulation of debris shall be removed from all areas no less than once per week. All dead, dam-aged, declining, hazardous or broken plant material (trees, shrubs, vines, ground cover,etc.), whether a result of the Contractor’s negligence or an unforeseen event, shall be removed by the Contractor at no additional cost to the City.
801-6.13 Emergency Calls. Contractor shall have the capability to receive and respond immediately to calls of an emergency nature during normal working hours and outside of normal working hours. Calls of an emergency nature received by the City’s designated representative shall be referred to the Contractor for imme-diate disposition. If the Contractor cannot be reached within 2 hours, the City will deduct from the monthly billing the cost of City forces, or other sources, used to repair the emergency. The Contractor shall not receive additional compensation for responding to emergencies for work included in these general conditions at contract worksites.
801-6.14 Complaints. Add the following subsection:
The Contractor shall maintain a monthly written log of all complaints which includes the date and time received and the action taken or the reason for non-action. The monthly log of complaints shall ac-company the monthly invoice.
All complaints shall be abated as soon as possible after notification, but in all cases within 24 hours, to the satisfaction of the City’s designated representative. If any complaint is not abated within 24 hours, the City’s designated representative shall be notified immediately of the reasons for not abating the complaint, followed by a written report to the City’s designated representative within five calendar days. If the complaints are not abated within the time specified, or to the satisfaction of the City’s designated representative, the City’s designated representative may correct the specific complaint and the total cost incurred by the City shall be deducted and forfeited from the payments owing to the Contractor from the City.
801-6.15 Training to City Staff: The Contractor shall provide training of City staff in proper operation of major equipment, including recommended winterization procedures, and shall submit evidence that training has been successfully completed.
801-6.16 As-Built Conditions: Within four (4) weeks of work completion and acceptance of site preparation and planting by the City’s designated representative, Contractor shall furnish and submit to the City and the City’s designated representative one (1) full scale (to each), reproducible plan set showing all "as-built" field changes to erosion control, irrigation, and planting for the mitigation area. Plan base sheet shall be provided to
Revised 6/15/17 Contract No. Page 35 of 39
Contractor by the City’s designated representative. All changes shall be legibly drafted/marked on a print set in ink and supplied to the City and the City’s designated representative. All reproduction costs are considered part of Contract.
801-6.17 Final Acceptance. Final inspection will occur at the end of the 120-day Plant Establishment Period, provided all previous deficiencies have been corrected. Contractor will be notified in writing that contract work and mainte-nance period has been accepted or that the maintenance period has been extended to correct any deficiencies remaining. Final written acceptance and approval by the City’s designated representative following these site observation visits shall establish the beginning date for the one-year warranty period.
a) Final Site Observation and Acceptance: At the conclusion of the maintenance period (120 days), a final site observation will be conducted. The Contractor shall show evidence that the City has received all charts, records, drawings, and extra equipment as required before final site observation and operate each irrigation system in its entirety for the City’s desig-nated representative at time of final observation. Any items deemed not acceptable by the City’s designated representative shall be re-worked to the complete satisfaction of the City and the City’s designated representative.
b) The Contractor shall show all corrections made from the "punch-list." Any items deemed not acceptable shall be reworked during the maintenance period. The Contractor will be notified in writing that the contract work and maintenance period has been accepted or that the maintenance period has been extended to correct any deficiencies remaining. Final acceptance shall establish the beginning date for the guarantee period.
801-7 MEASUREMENT.
Insert the following after the first sentence:
Measurement for Site and Soil Preparation, Irrigation, Planting, and Plant Establishment Maintenance will be per the unit indicated on the Bid Form for each completed item installed/conducted as shown on the Drawings and according to these Special Provisions, complete, in place and accepted.
801-8 PAYMENT. Replace the first sentence with the following:
Payment for Site and Soil Preparation, Irrigation, Planting, and Plant Establishment Maintenance work, measured as specified, will be on a contract unit price as indicated for each item in the Bid Form, the price of which shall include all costs connected therein. The unit prices shown in the Bid Form shall include full compensation to complete removals, complete installations and maintain the land-scaping and irrigation work shown on the Drawings and in the Specifications, including all material, labor, equipment, samples, testing, manuals, and guarantees.
Add the following at the end of the section:
If performance by the Contractor is deficient, the City reserves the right to subtract appropriate costs from the monthly billing and/or hire another contractor to provide the service and deduct the expense from the contract retention. Since it is difficult to quantify and assess a value to every aspect of the work, the City representative shall determine the cost per incident. The following describes deficien-cies:
a) Lack of compliance to specifications (i.e., failure to adequately mow, edge, litter pick,
sweep/rake, weed, prune, remove dead plant material, etc.).
b) Failure to provide specified reports or to falsify reports.
c) Failure to supply adequate equipment, labor or supervision.
d) Failure to repair irrigation deficiencies in the allotted time frame.
Revised 6/15/17 Contract No. Page 36 of 39
e) Failure to comply with schedules. Variances may be approved by request. Delays in part to
acquisition or adverse weather conditions will be taken into consideration.
f) Failure to protect public health and safety.
Revised 6/15/17 Contract No. Page 37 of 39
TECHNICAL SPECIFICATION FOR BONDED FIBER MATRIX STABILIZATION PART 1 – GENERAL SUBMITTALS A. Submit a certificate of compliance for bonded fiber matrix and related tackifier at least 5 business days before application. Certificates of compliance shall include:
1. Product label 2. List of applicable nonvisible pollutant indicators for soil amendment and stabili-zation products 3. Report of acute and chronic toxicity tests on aquatic organisms conforming to EPA methods 4. List of ingredients, including chemical formulation 5. Properties of polyacrylamide in tackifier including (1) percent purity by weight, (2) percent active content, (3) average molecular weight, and (4) charge den-sity.
PART 2 – PRODUCTS
MATERIALS A. Fiber 1. Fiber for bonded fiber matrix shall be 100 percent wood fiber and comply with the re-quirements for fiber except the sieve requirement shall be at least 50 percent retained on a no. 25 sieve. 2. Fiber shall be wood fiber. Wood fiber shall be a long strand, whole wood fiber thermo-mechanically processed from clean whole wood chips. B. Tackifier 1. Tackifier for bonded fiber matrix shall: a. Be bonded to the fiber or prepackaged with the fiber by the manufacturer b. Contain a minimum of 10 percent of the combined weight of the dry fiber, acti-vating agents, and additives c. Be an organic, high viscosity colloidal polysaccharide with activating agents or a blended hydrocolloid-based binder C. Hydroseed 1. Seed shall be supplied by a licensed seed company. 2. Hydroseeding Mix for all disturbed areas from construction shall consist of not less than the seed varieties shown in Table A.
Revised 6/15/17 Contract No. Page 38 of 39
Table A SEED FOR DISTURBED AREAS
Coastal Sage Scrub Seed Mix for La Costa Avenue
Scientific, Common Name Bulk lbs /acre Minimum Percent Purity/Germination* PLS per Acre
Baccharis Pilularis, Coyote Bush 5 10/50 0.25
Isocoma Menziesii, Goldenbush 5 18/40 0.36
Artemisia Californica, California Sagebrush 15 30/60 2.7
Salvia Mellifera, Blacksage 10 85/50 4.25
Acmispon Glaber, Deerweed 15 95/80 11.4
TOTALS: 50 18.96
*Minimum percent purity and germination from S&S Seeds
PART 3 – EXECUTION
SITE PREPARATION A. Prior to seeding, the Contractor and Engineer shall confirm the seeding areas based
on post-construction as-built conditions.
B. Prior to planting and seeding, all weeds, trash, and debris shall be removed from
restoration areas.
C. Weeds (nonnative species) within the area to be seeded shall be eradicated through
hand-removal prior to seed application.
BONDED FIBER MATRIX A. Bonded fiber matrix shall consist of hydraulically-applied material composed of fiber, tackifier and seed and fertilizer prescribed on the Drawings.
B. Apply bonded fiber matrix materials in the locations, rates, and number of applica-tions shown on the Drawings and as follows:
1. Apply in successive passes as necessary to achieve the required application
rate.
2. Form a continuous uniform mat with no gaps between the mat and the soil sur-
face as follows:
a. Apply in 2 or more directions if necessary.
Revised 6/15/17 Contract No. Page 39 of 39
b. Apply in layers as necessary to avoid slumping and aid drying. The
Contractor shall apply a minimum of two layers.
C. Apply bonded fiber matrix at the rate of 3,000 lb/acre.
FINAL STABALIZATION A. Appropriate erosion control materials shall be installed at the completion of seeding. All
erosion controls used in final stabilization shall completely consist of a natural
biodegradable material. Material containing plastics (I.e: fiber rolls with plastic mesh) will
not be accepted.
PART 4 – ACCEPTANCE INSPECTIONS A. Inspection will be performed by the Engineer.
B. The Contractor shall notify the Engineer, in writing, at least four working days prior to
the start of the work and shall allow a minimum of three working days for the inspec-
tion.
C. The Contractor shall provide seed tags onsite to show the mix design provided in
Table A is incorporated onsite.
D. Seed shall be delivered to the site in unopened separate containers with the seed tag
attached.
a. The seed tag shall list the species, collection location, quantity (pounds [lbs.]),
and purity and germination percentages. Containers without a seed tag will not
be accepted.
b. Once the correct individual species and quantities are verified by the Biological
Monitor, the respective seed mixes can be mixed.
PART 5 – PAYMENT A. Upon acceptance by the engineer, payment for Bonded Fiber Matrix shall be made at the lump sum price as defined in the bid schedule and constitute complete payment to seed and stabilize all natural areas disturbed from construction.
Exhibit 4
Traffic and Mobility Commission meeting approved
minutes dated Oct. 4, 2021
(on file in the Office of the City Clerk)
Feb. 6, 2024 Item #1 Page 8 of 8