HomeMy WebLinkAbout1989-07-18; City Council; 10137; Carlsbad BL improvements chg order 8CIT"" OF CARLSBAD - AGENP" BILL
APPROVAL OF CHANGE ORDER NO. 8 FOR
PHASE I1 OF THE IMPROVEMENTS TO CARLSBAD BOULEVARD, PROJECT NO. 3205
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RECOMMENDED ACTION:
Adopt Resolution No. ff/J#'approving Change Order No. 8 for the
construction of a 1211 waterline and related appurtenances on Carlsbad Boulevard, Project No. 3205 and, appropriation of funds.
ITEM EXPLANATION:
Phase I1 of the improvements to Carlsbad Boulevard from the Agua Hedionda bridge south to Tierra Del Oro are currently under
construction. The western half of the roadway was completed and
opened to parking and traffic on June 5, 1989. The project
contractor has begun grading of the eastern half of the roadway including the future median areas and adjacent slopes. During the
grading operations on the eastern half of the roadway, it was discovered that an existing 12" waterline will be located within
2" of the subgrade in several locations. Subgrade preparation cannot, therefore, be performed without breaking or otherwise
damaging the existing high pressure waterline.
The project plans and specifications direct the contractor to work
around the waterline and provide support and temporary protection if necessary during the grading operations for the roadway. City
staff has been working closely with the Carlsbad Municipal Water District staff as well as the project contractor on this matter.
It is the opinion of all parties that the existing 12Il waterline
cannot be properly or reasonably protected during the grading
operations. Additionally, the Water District has expressed concern
that even if left intact, the future traffic loads would likely
damage the waterline due to marginal cover above the pipe.
In conjunction with Water District personnel, City staff identified
two (2) options for remedying the waterline situation. First, the
12l' waterline would be lowered in five (5) separate conflict points
through the use of manufactured elbow pipe units and connections. This approach is not favored by the Water District since the installation will require a complete shut-down ofthe existing line for an extended duration and increase the potential, due to the number of bends in the pipe, for future cracking and leaking. The
price quoted by the contractor for this option is $77,216.
The second option is the installation of a parallel 12" pipe at
the desired depth which will provide sufficient cover and support
for the waterline. The existing waterline can remain in service
during the installation of the new line and later be removed by the
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contractor when the new line is put in service. City staff and the
Water District staff recommend this approach for the following
reasons :
- There will be no interruption of water service to the local
area during installation.
- Installation will only require two (2) tie-ins and no
irregular pipe bends, thereby reducing the potential for future cracking and leaking.
- The new line can be installed within a period of
The contractor has quoted a total cost of $94,562 for this option. The scope of work and prices have been reviewed by the District
Engineer. It is the recommendation of both City staff and the
Carlsbad Municipal Water District staff that this option be
selected. Attached for the Council's consideration is Change Order No. 8, to enable the installation of a replacement 12" waterline
within the project area. Staff recommends approval of this change order.
approximately five (5) to seven (7) working days.
FISCAL IMPACT:
It is recommended that the Council appropriate $94,562 from the
unappropriated fund balance in the Water Capital Project Fund to
the project account number 503-840-1860-3205 to enable proceeding
with the necessary waterline installation. This capital project
account within the Water Enterprise Fund is specifically
established for waterline projects. The Carlsbad Municipal Water District Engineer, Mr. Bob Greaney, has indicated he will forward
a copy of this report to the District Board as an information item.
EXHIBITS :
1. Resolution No. FydA4/ approving Change Order No. 8 for the
construction of a 12" City's waterline on Carlsbad Boulevard
and appropriating funds.
2. Change Order No. 8.
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RESOLUTION NO. 89-241
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF CARLSBAD, CALIFORNIA, APPROVING PROJECT CHANGE ORDER NO. 8 FOR CARLSBAD BOULEVARD PHASE I1 IMPROVEMENTS, PROJECT NO. 3205
WHEREAS, relocation and reconstruction of an existing
waterline within the project area is required and necessary for
the improvements to Carlsbad Boulevard, currently under
construction: and
WHEREAS, the City Council of the City of Carlsbad, in
conjunction with the Carlsbad Municipal Water District, hereby
finds it necessary, desireable and in the public interest to
proceed with the relocation of said facility at this time.
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 No. 8 in the amount of
$94,562 is hereby approved and the Mayor is authorized to execute
said change order. Following the Mayor's signature of said change
order, the City Clerk is authorized and directed to return the
original copy of said document to the Municipal Projects Department
for processing.
3. That the Purchasing Officer of the City of Carlsbad,
California, is hereby authorized to increase the existing purchase
order No. 6989 by $94,562 in accordance with approved Change Order
No. 8.
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4. That an appropriation of $94,562 from the
Unappropriated Fund Balance in the Water Capital Project Fund to
the project account number 503-840-1860-3205 is hereby approved.
PASSED, APPROVED AND ADOPTED by the City Council of the
City of Carlsbad at its regular meeting held on the 18th day of
July , 1989, by the following vote, to wit:
AYES: Coucnil Members Lewis, Kulchin, Pettine, Mamaux and Larson
ATTEST:
ALETHA L. RAUTENKRANZ, Cityklerk
(SEAL)
8
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FUBLJC WORK3 EsMsEcll CHANGE ORDER NO. 8
300 820 1840 3205 CONTRACT NO. , 3205 "?SE ORDER NO. 6989 ACCOUNT NO.
coNTR4cToR'S NAME WEST COAST GENERAL
CDNTRACIDR'S AJlDRESS 1 E
The Contractor is directed to make the following changes as described herein. charqes shall include all labor, materials, equipment, contract time extensions, and all other
goods and services required to implement this change. Payment stated on this change order includes all charges, direct or indirect, arising out of this additional work and is expressly agreed between city and Contractor to be the camplete and final costs
hereof. The requirements of the specifications, where pertinent and not in conflict with
this change order, shall apply to these changes. This change order is not effective unless signed by the City Manager and/or the Mayor.
w: 1. Construct 2340 L.F. of 12" ACP waterline complete
in place with tie ins, valves BOS and MAR
2. Crush 2000 L.F. of existing waterline in place (3 $2.50 per L.F. 5,000.00
TOTAL $94,562.00
REASON FOR C"GE:
The existing waterline will be conflicting with the construction of road section and shall be lowered 4' to 5'
C'OST:
~;~rmp sum X Unit prices X ~0th X
~otal this extra $ 94,562.00 previous net changes $ 37.320.53 original contract amount $ 2,107,278.34
New contract total $ 2,239.160.87
CITYOFCAFUSBAD . +!!v / Date
7/32 9
Date
TlME CHANGE:
Add days 7 Deduct days -0-
Add/d&uct days this change 7
Previous add/deduct days 6 original contract days 131
New contract time 144
$. & 7-l-Bf
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CALTRANS
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Job File Project Inspector Contractor
Arrchasing with P.0. Qlange Order