HomeMy WebLinkAbout4.3 Advertise ForBids 88-8 CITY OF DUBLIN
AGENDA STATEMENT
City Council Meeting Date: November 14, 1988
SUBJECT:
Authorization to Solicit Bids for Contract 88-8 Wood
Sound Attenuation Fence for West Side of San Ramon
Road Between Silvergate and Alcosta
EXHIBITS ATTACHED:
1) Detail of Wood Sound Fence
2) Map showing lots for which Right-of-Entry was
refused.
3) Plans and Specifications will be available at the
meeting.
RECOMMENDATION: ~ ~' Authorize Staff to solicit bids for the wooden sound
fence.
FINANCIAL STATEMENT: Budgeted funds are as follows:
Design and inspection
Easements and negotiations
Construction
Total:
$ 15,600
7,250
88,650
$ 111,500
Engineer's Estimate for Construction: $ 155,000
If the low bid does exceed the amount budgeted, Staff will recommend at the
time of bid award that a budget transfer be made from the San Ramon Road Phase
III project, which was bid at almost $500,000 under its budget.
DESCRIPTION:
Several months ago, the City Council received a presentation which
included a discussion of the wooden sound fences to be constructed along the
west side of San Ramon Road as part of the sound mitigation for the San Ramon
Road Phase III and IV project. These wooden sound fences would replace the
existing fences at residences that back up to San Ramon Road. The fence will
be 6 1/2 feet high in most locations and constructed primarily of redwood and
heavy plywood as shown on the detail attached (Exhibit 1 - 3 pages).
In the interim, Staff has held an informational meeting with the
property owners involved and distributed right-of-entry agreemenfs to be
signed and notarized. While most of the property owners have signed the
right-of-entry agreement, two of them have opted to keep their existing
fences. Exhibit 2 indicates the location of those properties not desiring the
sound fence. Engineering Staff has omitted those lots from the plans,
specifications, and estimates. The present estimate for the length of fence
to be installed is 2,600 feet.
A number of the existing fences have gates in them so that the residents
can reach the slope portion of their property directly adjacent to San Ramon
Road. The City will install a gate in the sound fence for those persons who
request one.
The contractor will, for the most part, access the fence construction
site through the yards of the residences. No vehicles will be required to
enter the yards; the post holes will be probably dug by a two-man motorized
post-hole digger. During the course of construction, a temporary chain link
fence will be installed for security purposes.
Santina and Thompson staff has made an updated cost estimate, and based
on some other similar installations and the difficulty of access to the sites,
have estimated the cost of the sound fence substantially higher than the
preliminary estimate.
Staff had considered treating the fences with a fire retardant. This
process would have added about $25,000 to the cost and cannot be used on
redwood, which would require a change in fence material. It was felt that the
fire retardant would not be cost-effective nor desirable from an aesthetic
standpoint.
Staff recommends that the City Council authorize solicitation of bids
for the wood soundwall project.
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