HomeMy WebLinkAbout1987-11-17; City Council; 8249-9; Approve change order No. 4-6 for College Blvd.-.
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TITLE: APPROVE CHANGE ORDER NOS. 4, 5, AND 6 DEPT. HD.
ASSESSMENT DISTRICT
FOR THE COLLEGE BOULEVARD
CITY MGR.
RECOMMENDED ACTION:
Adopt Resolution No. 924y approving Change Order Nos. 4, 5, and
6 for the College Boulevard Assessment District, Project No.
3188.
ITEM EXPLANATION:
Construction of the College Boulevard Assessment District from El Camino Real to Palomar Airport Road commenced on July 30, 1986 and has been progressing according to schedule. To date, eighty percent (80%) of the approximately two (2) mile road has been completed satisfactorily and all underground utilities and facilities have been installed.
During the mass grading and excavation of the roadway, it was
discovered that a portion of the roadbed consisted of unsuitable
alluvial material requiring removal. The location and possible existence of the alluvial material was identified during the design of the project and included in the detailed project plans. Although there are unit prices for both unclassified excavation
and import of unclassified fill, there is not a pay quantity for
the alluvial material removal since the extent of the material
was unknown at the time of the design.
The firm of NBS/Lowry which is acting as the City's project
manager, as well as the projectls design engineer, confirmed the
existence and unsuitability of the material during the excavation
for the road. Accordingly, the contractor was directed to proceed with the removal of 92,874 cubic yards of unsuitable alluvial material. Attached Change Order No. 4 is recommended to be approved in the amount of $153,242.10.
Change Order No. 5 was required by the utility companies for
additional conduits and accessories for the underground
electrical and telephone extensions. The total cost of this
change is $46,986.75. Change Order No. 6 in the amount of
$23,438 is required for the costs of fourteen (14) water meters for irrigation of the slopes and median islands. Additionally,
retaining walls for the SDGtE electrical vaults adjacent to the
slopes were also required.
Assessment district contingency funds in the amount of $586,000 are currently available in the project account to enable the
approval of Change Order Nos. 4, 5, and 6.
Page Two of Agenda Bill No. f299 -+9
FISCAL IMPACT:
Bonds in the amount of $9,570,250 were sold for the College Boulevard Assessment District. There is a sufficient balance of
funds in the project account to enable approval of Change Order Nos. 4, 5, and 6.
EXHIBITS :
1. Location Map.
2. Resolution No. 929Y approving Change Order Nos. 4 , 5 , and 6
for the College Boulevard Assessment District, Project No.
3188.
LOCATION MAP
LEGEND
........ ASSESSMENT DISTRICT
BOUNDARY
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'RoJECr SOUTH COLLEGE BLVD. PROJ. NO* EXHIBIT
ASSESSMENT DISTRICT I3188 I I
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RESOLUTION NO. 9298
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF CARLSBAD, CALIFORNIA, APPROVING PROJECT CHANGE ORDER NOS. 4, 5, AND 6 FOR THE COLLEGE BOULEVARD ASSESSMENT DISTRICT, PROJECT NO. 3188
WHEREAS, the construction of the College Boulevard
Assessment District, Project No. 3188, is proceeding according
to schedule; and
WHEREAS, additional grading and alluvial material
excavation was necessary for the stabilization of a roadbed; and
WHEREAS, construction of retaining walls around utility
boxes was necessary: and
WHEREAS, due to field changes by certain utility companies,
additional utility conduits were installed for power and phone
system ;
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 project change order Nos. 4, 5, and 6 in the
amount of $223,666.85 are hereby approved and the Mayor and City
Clerk are authorized to execute said change orders. Following
execution of Change Order Nos. 4, 5, and 6 by the Mayor, the
City Clerk is authorized and directed to return copies of said
executed Change Orders to Municipal Projects for processing.
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3. That the Purchasing Officer of the City of Carlsbad,
California, is hereby authorized to increase the existing
Purchase Order No. 2277 in the amount of $223,666.85 in
accordance with approved Change Order Nos. 4, 5, and 6.
PASSED, APPROVED AND ADOPTED at a regular meeting of the
Carlsbad City Council held on the 17th date of November I
1987, by the following vote, to wit:
AYES: Council Members Lewis, Kulchin, Pettine, Mamaux and Larson
NOES: None
ABSENT: None
ATTEST:
ALETHA L. RAUTENKRANZ, City 4lerk
(SEAL)
-- & 4-n-
CHANGE ORDER
E68-015.019/21
Order No. 4-revised Date March 23, 1987 Agreement Date
Sheet 1 of 2
Owner : City of Carlsbad
Project: Assessment District 85-2, Schedules I & I1
Contractor: Koll/Hubbard, a Joint Venture
The following changes are hereby made to the Contract Documents:
ITEM 1. UNSUITABLE MATERIAL REMOVALS
The following bid quantity increases are hereby authorized for removal and replacement of existing unacceptable fill, alluvium, colluvium, and surficial soils in areas to receive fill:
BID PREVIOUS QUANTITY NEW COST ITEM DESCRIPTION QUANTITY INCREASE QUANTITY INCREASE
.. 1 Unclassified
2 Unclassified Excavation 1,401,000 92,874 1,493,874 $116,092.50
Fill 1,401,000 92,874 1,493 , 874 37 , 149.60 TOTAL COST INCREASE: $153,242.10
ITEM 2. RAIN DELAYS
For the period from February 23, 1987 to March 20, 1987 construction has been halted or impaired on the following dates due to rain:
02/23/87 through 02/27/87 and 03/06/87, a loss of six (6) working days. A time extension is therefore authorized for eight (8)
calendar days.
There is no change in contract price for this item.
JUSTIFICATION
ITEM 1. Actual depths of unsuitable materials within areas to receive fill have averaged 4+ feet deep. Included in this amount
is buttressing of slide material at Station 20+00 to 28+00 and
recompaction of an existing fill areas at Station 62+00. Surficial,
colluvial, and alluvial soils requiring removal ranged in depth from 2 feet on slopes to 9 feet in canyon bottoms. The bid quan- tities included 38,100 CY's. over the required design excavations. This represents removals under fill areas of approximately 1 1/3
foot deep. An additional 92,874 CY's is required for a total of
130,974 Cy's of unsuitable materials removal.
-
68-015.019/21
I. Change Order No. 4-revised March 23, 1987
Sheet 2 of 2
JUSTIFICATION continued
ITEN 2. Adverse weather conditions (rain) necessitated cessation
of the contractor's work.
CHANGE TO CONTRACT PRICE
Schedule I Schedule I1
Original Contract Price $6,801,836.31 $ 255,200.00
Previous Change Orders 0.00 $( 34,280.80) $
Contract Price by this Change
Order will be Increased:
1. Unsuitable Material Removal $ 153,242.10 $ 0.00 $ 2. Rain Delays 0.00 $ $
0.00
0.00 Increase This Change Order $ 153,242.10
New Contract Price including
this Change Order $6,920,797.61 $ 255,200.00
CHANGE TO CONTRACT TIME
Contract Time will Increase 8 8
..
Calendar Days Calendar Days
Date for Completion
of All Work January 14, 1988 Date January 14, 1988 Date
APPROVALS REQUIRED
To be effective, this Order must be approved by the &+ZY if it changes the scope or objective of the Project, or as may
otherwise be required by the Supplemental General Conditions.
Recommended by: Date 3 -4 ?-&7
Approved by: 5 Date '<7//
Accepted by: Date 5- L/-87
,
CHANGE ORDER
E68-015.019/21
Order No. 5
Date June 22, 1987
~ ~~ Agreement Date
Sheet 1 of 4
Owner: City of Carlsbad
Project: Assessment District 85-2, Schedules I & I1
Contractor: Koll/Hubbard, a Joint Venture
The following changes are hereby made to the Contract Documents:
ITEM I ms
Justification: Five (5) sprinkler meter .:ontrol pedestals are required
on the northwest side of College Boulevard. They were not shown on the plans and are necessary for the operat-
ion of the system. The addresses were obtained from the
City of Carlsbad (see Attachment No. 1).
Cost: 5 @ $1,795 = $8,975 + 5% (contractors
overhead) '-*
Total = $9,423.75
There is no time extension for this item.
ITEM 2 STORM DRAIN CLEANOUT VAULT ENLARGEMENT
Justification: The cleanout at station 31+64 is shown on the plans as a 5'x 5' concrete vault. It was found necessary to
enlarge the box to a 5'x 8' box in order to accomodate the three storm drains merging at that location from different angles. (See Attachment No. 2)
cost : $1,100.00
There is no time extension for this item.
ITEM 3 ADDITIONAL 16" ML&C PIPE
Justification: An additional 19 feet of 16" pipe was the connection to the existinq line on the slope at
station 19+15.
Cost: 19 @ $100/LF (Bid item 20)
Total = $1,900.00
There is no time extension for this item.
E68-015.019
Change Order No. 5
June 22, 1987
Sht 2 of 4
ITEM 4 ADDITIONAL COSTS FOR TELEPHONE AND ELECTRICAL QUANTITY CHANGES
Justification: Due to revision in the plans, the quantities for
telephone and electrical have changed. Below is a breakdown of the estimated changes from the revised
plans. See Attachment No. 3 for more detailed
breakdown.
Telephone Quantities
Bid Item Description Quantity Chg. Unit Cost Cost Change
96 Telco only trench 993 $ 4.00 $3,972.00
104 2-4" D.B. Conduit (1759) 3.00 (5,277.00)
105 4-4" D.B. Conduit 2863 6.00 17,178.00
108 12x6~7 Manhole (1) 4,400.00 (4,400.00)
EW* 1-2" Conduit 805
EW* 2' Sweep-2"Conduit 2
EW* Street Crossing 1 4-4" Conduit
2,012.50
10.00 20.00
.. 2.50
8,000.00 8,000.00
Total Telephone: $21,505.50
* Denotes Extra Work Item not on
original bid items.
Electrical Quantities
Bid Item Description Quantity Chg. Unit Cost Cost Change
95 Main Trench 180 $ 4.50 $810.00
98 1-2" D.B. Conduit 1830 2.50 4,575.00
2.00 (lOO.00) 99 1-3" D.B. Conduit (50)
100 1-4" D.B. Conduit 765 1.50 1,147.50
101 1-5" D.B. Conduit 680 2.00 1,360.00
102 2-5" E.B. Conduit 380 4.00 1,520.00
103 4-5" E.B. Conduit (325) 7.00 (2,275.00)
106 Transformer Pad 2 600.00 1,200.00
E68-015.019
Change Order No. 5
June 22, 1987
Sht 3 of 4
Electrical Quantities
Bid Item Description Quantity Chq. Unit Cost Cost Change
107 Man ho 1 e (2) $3,500.00 (7 I 000.00)
EW Switch Pad (3441) 2 5,500.00 11,000.00
EW 1-5" E.B. Conduit 205 4.00 820.00
Total Electrical: $13,057.50
Note: D.B. = Direct Burial E.B = Encased Burial
Total Electrical and Telephone Quantity Takeoff,
Item No. 4 = $34,563.00
There is no time extension for this item.
CHANGE TO CONTRACT PRICE
Orig. Contract Price
Previous Change Orders
Schedule I
$6,801,836.31
$ 118,961.30
..
Schedule I1
$255,200.00
$ -0-
Contract Price Increase
Item 1: Meter Pedestals $ 9,423.75 $ -0-
Item 2: Vault Enlargement $ 1 , 100.00 $ -0-
Item 3: Additional 16" Pipe $ 1 , 900.00 $ -0-
ITem 4: Teleco & Elect Qty Changes $ 34,563-00 $ -0-
This Change Order:
Increase this Change Order: $ $46,986.75 $ -0-
New Contract Price including $255,200.00 this Change ORder $6 1967,784.36
CHANGE TO CONTRACT TIME
No Change to Contract Time $ -0- $ -0-
Date for Completion of all Work January 14, 1988 January 14, 1988
E68-015.019/21
Change Order No. 5
June 22, 1987
Sht 4 of 4
APPROVALS REQUIRED
To be effective, this Order must be approved by the if it changes the scope or objective of the Project, or as may
otherwise be required by the Supplemental General Conditions.
Approved by:
Approved by:
Recommended by: Date d-dU-67
Date -'#&& ,.& /& Date * of/- 67 KO L/HUBBAR A J NT VENTURE I
qr /
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CHANGE ORDER
E68-015.019/21
Order No. 6
Date November 5, 1987
Agreement Date Sheet 1 of 3
Owner: City of Carlsbad
Project : Assessment District 85-2, Schedules I & I1
Contractor: Koll/Hubbard, a Joint Venture
The following changes are hereby made to the Contract Documents:
ITEM 1 RETAINING WALLS FOR ELECTRICAL VAULTS
Justification: Masonry walls are required by SDG&E around the electrical vaults before they will install power on College Boulevard. Since this was not included in the original contract, it must be added by change
order (see Attachment No. 1). Masonry walls at 14- locations, total $17,558.00. There is no time
extension for this item. ..
ITEM 2 LANDSCAPE IRRIGATION WATER METERS
Justification: In order to complete the irrigation system, the
Contractor was required to purchase water meters from The City of Carlsbad. Since the meters serve four separate property owners, one being The City of
Carlsbad, the meter costs should be paid by the
Assessment District and then assessed to the property
owners. (See Attachment No. 2).
cost: 14 meters @ $420.00 = $5,880.00
There is no time extension for this item.
ITEM 3 TIME EXTENSION DUE TO RAIN
Justification: Due to rain and the effects of rain, the Contractor's
schedule was impacted, causing a total of 5 days
delay. These dates are as follows:
August 14, 1987: rain, Contractor lost 1/2 day.
September 22, 1987: rain, Contractor lost 1/2 day.
E68-015.019
Change Order No. 6 DATE November 5,-
Sheet of 2-
October 13, 1987: rain, Contractor lost full day
October 14,15,16, 1987: due to excessive mud, the
Contractor was prevented from cutting fine grade on the north end of the project. Although other work was performed, the loss of fine grading was a major impact to a critical path item. (See Attachment No. 3.)
TOTAL: +5 days
CHANGE TO CONTRACT PRICE
Orig. Contract Price
Previous Change Orders
Contract Price Increase This Change Order:
Item 1: Retaining Walls
Item 2: Water Meters
Item 3: Time Extension
TOTAL THIS CHANGE ORDER
New Contract Price including
this Change Order
Schedule I
$6,801,836.31
$ 165,948.05
$ 17,558.00 $ 5,880.00
-0-
$ 23,438.00
$6,991,222.36
Schedule I1
$255,200;00
-.-.o - $
$ -0-
$ -0-
-0-
$ -0-
$255,200.00
CHANGE TO CONTRACT TIME
Contract Time +5 working days +5 working days
Date for Completion of all work January 21, 1988 January 21, 1988
_-.
E68-015.019/21
Change Order No. 6
DATE November 5, 1987
Sheet 3 of 3
APPROVALS REOUIRED
To be effective, this Order must be approved by the if it changes the scope or objective of the Project, or as may
otherwise be required by the Supplemental General Conditions.
Recommended by: DATE //-5-87 NBS/LOWRY, INCOReORATED
Approved by: P& DATE %$?A7
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DATE -11 .-5-8;7
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Approved by: