HomeMy WebLinkAbout1991-07-23; City Council; 11268; REVIEW OPTIONS REGARDING THE PROPOSED IMPROVEMENTS TO OAK AVENUE AND TWO OTHER CDBG PROJECTSI
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ciy OF CARLSBAD - AGEN~ BILL ! Lx< {J
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AB# /(.gh ' TITLE: REVIEW OPTIONS REGARDING THE DEPT. HI
DEPT. ENG/MP CITY MG
RECOMMENDED ACTION:
t Adopt Resolution No.q/-JO? awarding the construction contract, o rejecting all bids and directing staff to redesign and readvertist the contract for the CDBG Oak Avenue Street Improvements, Granc
Avenue Sidewalk Improvements, and Pedestrian Access Ramps, Projec. Nos. 3731, 3732, and 3739.
ITEM EXPLANATION:
On April 23, 1991, the City Council approved the plans an( specifications and authorized advertisement of construction bid: for three (3) Community Development Block Grant (CDBG) stree- improvement projects. On June 17, 1991, the following three (3,
bids were received:
MTG. 7/23/91 PROPOSED IMPROVEMENTS TO OAK AVENUE C~T~AT AND TWO OTHER CDBG PROJECTS
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Roca Construction, Incorporated $138,417.70 $151,199.65 William J. Kirchnavy, Incorporated
H.S. Excel Corporation $167,700.00
On July 2, 1991, the City Council considered award of thi: construction contract. At that time, the City Council continuec this item to the July 23, 1991 City Council meeting and directec staff to review options regarding a design alternative that woulc retain the existing large eucalyptus tree at the corner of Oak Avenue and the Tyler Street alley. The City Council also directed staff to analyze design alternatives which included retaining the tree with particular emphasis upon public safety.
Since July 2, 1991, staff has reviewed a number of alternative designs which would retain the tree and still accomplish the general intent of the road improvement project.
Staff proposes an alternative placement of the curb and sidewalk around the front of the trunk of the tree facing to the south. ThE construction plan presented on July 2nd increased the paved width of the street from 44 to 54 feet. However, retention of the tree will require the street width to be narrowed from 44 to 40 feet.
This narrower width still permits parallel parking on both sides of Oak Avenue, except near the alley entrance. Parking will be prohibited at that location to improve sight distance around the tree trunk and provide a 16 foot travel lane. This design alternative does not change the existing sight distance deficiency for cars exiting the alley. The Traffic Division will monitor the post-construction traffic circulation around the alley entrance and
make a recommendation for a one-way restriction, closure, or some other modification of the alley if it becomes warranted in the future. Please reference the attached memorandum from the Traffic Engineer dated July 12, 1991.
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Page 2 of Agenda Bill No.
Because the overall width of the street will be reduced, th existing street section must be entirely removed and replaced at lower elevation in order to keep the same volume of storm wate runoff within the curb-to-curb width of the street. Under the ne design, staff will evaluate drainage impacts, if any, upon adjacen private properties and provide for measures to reduce the potentia
for storm flooding of abutting properties. Rebuilding a slight1 crowned section in the road will keep nuisance water from puddlin in the front of the Boys and Girls Club.
The City has separate bid prices for all items of construction, an1 could procedurally direct the contractor to make the necessar construction changes to preserve the eucalyptus tree. However, th
cost of additional concrete curb and asphalt pavement removal an1 rebuilding of the street is estimated to be approximately $25,00 based upon quoted bid prices.
In the last two (2) weeks, the City retained a professiona arborist, Mr. E. Robert Bichowsky, of Butler's Mill Incorporated
to examine the eucalyptus tree and advise the City of wha precautions are necessary to preserve it in good health through th
construction and beyond. His preliminary findings an( recommendations are attached as Exhibit No. 2. At the July 23
1991 Council meeting, staff will report on Mr. Bichowsky's furthei findings and recommendations regarding the status of the tree.
The City Council has several options to consider regarding thc proposed Oak Avenue improvements:
1. Proceed to award the existing construction contract as designed which would include removal of the eucalyptus tree
Proceed to award the existing construction contract which wil: be subsequently modified by change order as allowed under tht Standard Specifications for Public Works Construction (Greer Book) to include retention of the eucalyptus tree and the additional construction modifications identified above. The estimated total cost for this option is approximately $25,00C additional.
3. Reject all current bids at this time and direct staff tc repackage the project plans and specifications and return tc the City Council with a bid package that includes retention 01 the eucalyptus tree and the additional road improvements required on Oak Avenue as identified above. It is estimatec that a modified plan and specification package could be completed within thirty (30) days and ready foi readvertisement of bids.
Should the City Council wish to keep the eucalyptus tree, staff recommends Option No. 3 above. Retaining the tree, relocating the sidewalk, re-establishing new curb and gutter elevations, and including additional pavement removal and replacement is a substantial scope change for this project which should best be handled by specific and detailed engineering modifications to thE project plans and specifications.
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Page 3 of Agenda Bill No.
Because the bid quantities for tree cutting, pavement removal excavation, road base, and asphalt will be changing considerabl under the new design, staff believes more competitive bid price can be obtained for the new project. Construction of the Oa Avenue improvements, the Grand Avenue sidewalk, and the additiona pedestrian ramps may be postponed three (3) to four (4) month without an adverse impact.
ENVIRONMENTAL REVIEW:
On November 15, 1990, the Planning Director issued a Negativ Declaration for the Oak Avenue Street Improvement Project No. 3731 The other two (2) projects, the Grand Avenue Sidewalks Improvement and the Access Ramps, each received a Notice of Exemption per th California Environmental Quality Act, Section 15301 (C) and Sectio
15304 Class 4, and per the National Environmental Policy Act, 2
CFR, Part 58.34 (a) (10). The projects are exempt because they ar
a minor alteration or a reconstruction and maintenance of existin public improvements.
GENERAL PLAN CONSISTENCY:
On December 19, 1990, the Planning Commission approved PCD/GPC 90-< for the Oak Avenue Street Improvements, finding it to be consisten
with the City's General Plan. The other two (2) projects, the in
fill sidewalk on Grand Avenue and the additional handicapped acces ramps, total less than $50,000 and are not considered capita projects within the definition of the City Administrative Order No
7. Therefore, the Planning Commission is not required to issue a finding of General Plan Consistency for the latter two (2
maintenance pro j ects.
FISCAL IMPACT:
Funds for this project are provided by the Community Developmenl
Block Grant Program, Department of Housing and Urban Development*
Under the current design, the anticipated project costs are a: follows:
PROJECT EXPENSES
Construction
/{ $? b f
Base Bid $138,417
15% Construction Contingency 20,763 Subtotal $159,180 Design
Oak Avenue (outside consultant) 22,000
Grand Ave & Access Ramps (City staff) 6,000 Subtotal $ 28,000
Administration & Inspection 8,000 Blueprints, Misc. 6,000 Subtotal $ 14,000
TOTAL $201,180
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Page 4 of Agenda Bill No. //,$bg
AVAILABLE PROJECT FUNDING
Oak Avenue Street Improvement $ 225,959
28,567 Grand Avenue Sidewalk 13,378 Access Ramps $ 267,904
EXHIBITS :
1. Location map.
2. Resolution No. 41-338 regarding the options for - rejecting bids for the construction of CDBG Project Nos. 373: 373*w and 3739. 3, ~es3LYI+g~fl~/-~~~ .~'u;s-r~,;%g ~A&fiG7i'sjr Gj.1 3731 393&4\
y. Letter dated July 11, 1991, from arborist E. Rokert
Bichowsky.
5. Memo dated July 12, 1991, from the Traffic Engineer.
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LEGEND > %() EZZB PROJECT #3731 -@ =PROJECT #3739
B PROJECT #37x . sQ*
PROJECT NAME; OAK AVE. IMPROVEMENTS
PEDESTRIAN ACCESS RAMPS
GRAND AVE. SIDEWALK IMPROVEMENTS ,-
PROJECT # EXHIBl
#3731, #3732,
& #3739 1
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RESOLUTION NO. 91-238
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, REJECTING ALL BIDS
AND DIRECTING STAFF TO REVISE PLANS AND SPECIFICATIONS AND READVERTISE FOR BIDS FOR THE CONSTRUCTION OF THE CDBG STREET, SIDEWALK,
& HANDICAP ACCESS RAMP IMPROVEMENTS, PROJECT NOS. 3731, 3732, 3739
WHEREAS, the City Council of the City of Carlsba
determined it necessary, desirable, and in the public intere
construct CDBG street, sidewalk and access ramp improvements
WHEREAS, three (3) sealed bids were received on Jur
1991 for the project; and
WHEREAS, the lowest responsible bid for the projec
submitted by Roca Construction, Incorporated, in the amou
$138,417.70; and
WHEREAS, the City Council has expressed a desii
retain the existing large eucalyptus tree affected by this pr
and has previously directed staff to provide an alternative pr
design to retain this tree: and
WHEREAS, staff has provided the City Council an optj
construct the street improvements while retaining said tree.
NOW, THEREFORE, BE IT RESOLVED by the City Council c
City of Carlsbad, California, as follows:
1. That the above recitations are true and corre
2. That the City Council hereby rejects all bid
directs staff to revise the project plans and specificatio
preserve the large eucalyptus tree located at the corner o
Avenue and the Tyler Street alley.
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3. That the City Clerk of the City of Carlsbad
hereby authorized and directed to publish, in accordance with 1
Notice to Contractors reinviting bids for the construction of
CDBG Oak Avenue Street Improvements, the Grand Avenue Side%
Improvements, and the Pedestrian Sidewalk Access Ramp Improveme1
PASSED, APPROVED AND ADOPTED at a regular meeting of
Carlsbad City Council held on the 23rd day of July
1991 by the following vote, to wit:
AYES:
NOES: None
ABSENT: None
Council Members Lewis, Kulchin, Larson, Stanton and Nyp
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RESOLUTION NO. 91-203
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIAf AWARDING A CONTRACT FOR THE CONSTRUCTION OF THE CDBG STREET, SIDEWALK, & HANDICAP ACCESS RAMP IMPROVEMENT PROJECT NOS. 3731, 3732, 3739 ,//
WHEREAS, the City Council of the City of Carlsbad
determined it necessary, desirable, and in the ptiblic interes
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construct CDBG street, side mp /I improvements;
WHEREAS, three (3 ie received on June
1991 for the project; and
WHEREAS, the lowe id for the project
submitted by Roca Construc ed, in the amoun
$138,417-70, \ NOW, THEREFORE, City Council of
1. \ .eve recitations are true and correc
2. That the/ low- bid submitted by Roca Construct
'\ City of Carlsbad, C'difor
That thyti
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Incorporated, in the 'mount of $138 f 417.70 is hereby accepted .I ///
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the Mayor and the City Clerk are hereby authorized to execu
contract hereafter.
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/ PASSED, APPROVED AND ADOPTED at a regular mpting of
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Carlsbad City Council held on the day of /' ,/'
P 1991 by the following vote, to wit:
/ ,/ AYES: /'
1,'
NOES : /.'
/ / / ABSENT :
//
/CLAUDE A. LEWIS, Mayor 1 ATTEST: /
ALETHA L. RAUTENKRANZ, City C'ierk 1 1 / 1 1 / 1
%i/iwb Mi/d fic
SINCE 1892
BRANCH OFFICE
836 E RANCHEROS DRIVE
SAN MARCOS. CALIF 92069
(619) 745-1254
FAX (619) 262-3659 (619) 433-9871
5180 NARANJA STREET
P 0 BOX 14305
SAN DIEGO, CALIF 92174
(61 9) 263-6i 81
RECEI~
JJL 15
July 11, 1991
Mr. Gary Kellison City of Carlsbad MUNICIPAL p
Engineering Department B IV I SIC
2075 Las Palmas Drive
Carisbad, CA 92009-4859
Dear Mr. Kellison:
This report follows my meeting with you and Mr. Puon to inspect the large
eucalyptus tree at the Tyier Ailey and Oak Avenue in Carlsbad on July 10, 1991,
I am a Consulting and Certified Arborist and was called by your office to
discuss the condition of the tree and whether the proposed curb and walk COR-
struction would adversely affect this tree.
The tree itself is in good condition for a tree close to 100 years of age.
Unfortunately, eucalyptus trees have rather shallow roots. If a number of them
have to be cut very close to the trunk on two sides of the tree. there is i!
chance that the stability of the tree would be compromised.
My recommendation is to deep soak the soil around the trunk and within two
days hand dig the areas where the curb base and sidewalk would be constructed.
I could then view the roots and advise on their condition for any removals or
bridging with a protective covering before concrete is poured.
If it appears that if too many large roots can't be protected and saved,
then the tree should be removed or a real liability would exist,
Please call me as soon as the necessary exposure is completed so I can
schedule a return visit and a final determination.
Sincerely, e Jpb,& sF5294Ad L
E. Robert Bichowsky
Consulting ArSorist, ASCA #238
Certified Arborist, ISA %264
ERB/ jhb
LANDSCAPE SUPPLIES TURFGRASS SPECIALIST 0 INSECT AND WEED CONTROL SERVICE
TREE AND LANDSCAPE INSPECTIONS
BY CONSULTING AND CERTIFIED ARBORIST
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July 12,1991
TO: CITY ENGINEER
FROM: Traffic Engineer
OAK AVENUE IMPROVEMENTS AT TYLER Sl'lUXT ALLEY
At the City Council meeting of July 2,1991 staff was directed to investigate alternatives that would
not require removal of the eucalyptus tree. Several options exkt such as a NO PROJECT or moving
the curb and gutter to a location approximately four feet southerly of the tree.
I do not favor a NO PROJECT option. In my opinion, the alternative of moving the curb and gutter
approximately four feet southerly of the tree that would enable the sidewalk to follow the curb line
and also be placed southerly of the tree would be preferable. It is my understanding that the distance from the street centerline to face of curb under this scenario should be approximately 16
feet, an adequate lane width to accommodate westbound vehicles and bicycles. A double-yellow
centerline stripe could then be installed on Oak Avenue between Roosevelt Street and State Street
with the appropriate gap at the Tyler StreeValley intersection with Oak Avenue. Vehicular traffic would thus be channelized on the street in such a manner to be directed past the curb and gutter
that would be built around the tree and that would result in approximately a 40-foot wide roadway
cross-section. Red curb on Oak Avenue will be required on both sides of the alley to help improve sight distance. However, this option does not eliminate the sight obstruction caused by the tree.
At this time I would not recommend establishing a ONE-WAY ALLEY or closing the alley at the Oak
Avenue intersection. Existing dead-end alleys in the City of Carlsbad have resulted in complaints
from citizens and the Police Department. The isolated "dead-end" portion becomes a nuisance area
for abandoned vehicles or a vehicle repair area, an area for potential crime activiq, a place for
congregation of crowds and loud noises, etc. A ONE-WAY AUEY probably would have low
compliance by the local residents and restaurant paaons and would not be a priority police
enforcement issue. These options should be held in abeyance and considered for implementation
if problems occur.
Previously installed curb markings on the south side of Oak Avenue adjacent to the Boys and Girls
Club have become virtually obliterated and are so very faint as to be almost imperceptible. A work
order has been issued to the Utilities and Maintenance Department to re-fresh the faded red and
green curb segments at the Boys and Girls Club.
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ROBERT eL&T& T. JOHNSON ., P.E. c,\ /-c -
Traffic Engineer
RTJ:n
c: Cornmunity Development Director
Utilities and Maintenance Director
Municipal Projects Manager