HomeMy WebLinkAbout11/06/2001, C5 - SEWER, WATER & STREET IMPROVEMENT PROJECT: SANTA ROSA-MONTEREY-CALIFORNIA, SPECIFICATION NO. 90151 i
Councit Nov 6, 2001 j
ac en ba Report S
CITY OF SAN LUIS OBI SPO `�
FROM: Michael D. McCluskey, Director of Public Works-v
Prepared By: Barbara Lynch Civil Engineer*
SUBJECT: SEWER,WATER & STREET IMPROVEMENT PROJECT: SANTA
ROSA—MONTEREY -CALIFORNIA, SPECIFICATION NO. 90151
CONTINGENCY FUNDING..
CAO RECOMMENDATION
1. Authorize transfer of funds from the Collection System Improvements, Distribution System
Improvements and Reconstruction and Resurfacing accounts to provide additional
contingency funding for Sewer, Water & Street Improvement Project: Santa Rosa_Monterey
California,Specification No. 90151 as identified in the report.
DISCUSSION
On January 9, 2001, the City Council authorized the award to Granite Construction for the
replacement of sewer and water lines and the resurfacing of Santa Rosa, Monterey and California
streets. The project has encountered several challenges which are affecting the contingency
balances for the various portions of the project. While we have not used all the contingency
funding, our current projections show a clear overage.
The sewer line work is being affected largely by two items. The first is contaminated soil in the
trench, likely coming from underground tanks. A portion of the contamination can be traced back
to a particular site. Staff has been in contact with the owner both before and during the project and
anticipates back charging about$10,000 to the owner. The owner is also paying to haul the material
from the temporary storage area. Other areas of contamination are so old as to make owner
identification impossible. The second item affecting the sewer fund contingencies was the
discovery of a fiber cable which had not been installed in accordance with the permit requirements.
This caused considerable delay and extra work. Staff has been in contact with the owner of the line
since its discovery and anticipates back charging about $60,000 to that company. Both of these
will be a credit to the sewer fund when received.
The waterline work is being primarily affected by a lack of good historical information on location
of services and on a main installed in 1943. In one case a service was pulled loose of the main
causing an immediate shut down of the work for the day and resulting in close to $10,000 in delay
costs. The damage to the street resulting from the water escaping from the main has yet to be
repaired, but will need to be done. The problem resulting from the unknown location of the main,
was a chance placement of the new line where the existing line was. The trench had already been
cut out before a break in the old line pinpointed its location. The trench will have to be repaired and
a new trench cut out. The City now installs tracer wire both with mains and services to allow us to
trace the lines and provide correct location markings. Unfortunately, on older lines, there is not
always good information for determining the location.
CS
Council Agenda Report—Santa Rosa—Monterey- California,Specification No.90151
Page 2
The general fund project will require additional funds due to the absence of a contract item in the
project. When completing resurfacing of concrete streets where a pavement grid is installed to
minimize reflective cracking from the concrete slabs, a thin initial layer of asphalt must be laid
down for the grid to sit on. It was this initial layer of asphalt that was over looked when putting the
contract items together. Without the additional funding, the grid will have to be eliminated and the
asphalt will begin showing cracks much sooner, shortening the life of the pavement.
FISCAL IMPACT:
Additional funding for sewer work will come from the Collection System Improvement account. It
is estimated that $70,000 will be forthcoming from companies associated with the overage to
reimburse this account. Additional funding for water work will come from the Distribution System
Improvement account and funding for the street reconstruction will come from funding remaining in
a completed Reconstruction and Resurfacing project.
Sewer Water Streets Total
Original Bid $ 789,014 $425,922 $431,896 $ 1,646,832
Project Contingencies $ 80,986 $44,078 $$68,104 $ 193,168
Project Budget $870,000 $470,000 $500,000 $ 19840,000
Contingencies Re uested $50,000 $20,000 $ 10,000 $80,000
New Project Budget $920,000 $490,000 $510,0001 $ 1,9209000
Account Balances - $ 667,450 1,294,950 $ 99,908
For contingency funding
ALTERNATIVES:
Staff does not see an alternative to completing the additional work. Costs associated with delays .
have already been incurred and must be paid under the conditions of the contract.
ATTACHMENTS:
Project Location Map
g:Lcurrent projectslsemr\90151 monterey\_staff mportsW151 Mra funds all.doc
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