D
I S T R I C T E N G I N E E R ‘ S R E P O R T
May 26, 2006
To: PBCSD
Board of Directors
From: Michael Niccum, District Engineer
Subject: 2006 Sewer Line
Replacement Project
_________________________________________________________________________
It is recommended the Board of Directors approve the
plans and specifications for construction of the 2006 Sewer Line Replacement Project
and authorize an invitation to bidders.
PBCSD has an ongoing capital improvement program to
upgrade and rehabilitate the existing wastewater collection system
infrastructure within the District.
Sewer lines are identified jointly by engineering and maintenance staff
during on-going evaluations of maintenance data collected from manhole
inspection, line cleaning, line rodding and televising activities. The project elements of the 2006 sewer replacement
project are shown on the attached project maps and summarized below:
1.
Replace 880 feet of
sewer main lines located on an easement near Monterey Peninsula Country Club
(“MPCC”) Dunes golf course between Sloat Road and Crescent Road.
2.
Replace 1,160 feet
of sewer mains on Sunridge Road and Sunset Lane.
3.
Replace 150 feet of
sewer lines located on easement above 17-Mile Drive near the intersection with
Sloat Road.
4.
Replace 1,120 feet
of sewer main lines crossing two fairways of the MPCC Dunes golf course between
Bird Rock Road and Arroyo Road.
5.
Replace 700 feet on
an easement between Mission Road and Sawmill Gulch Road near Seagull Road.
6.
Replace 650 feet on
an easement between Sloat Road and 17-Mile Drive.
7.
Replace 380 feet on
easements located between Cormorant Road and Rodeo Road and the MPCC Shore golf
course.
8.
Replace 600 feet of
sewer lines on Ocean Road.
The method of installation will be by “pipe bursting”
which uses a mechanical burster unit to split an existing pipe while
simultaneously installing a new 8-inch diameter polyethylene pipe where the old
pipe existed. This trenchless pipe
bursting method was used successfully in previous sewer line replacement
projects completed 2001, 2002 and 2005.
A
copy of the plans and specifications for the proposed project prepared by E2
Consulting Engineers (E2) is available for review in the boardroom. A recommendation for awarding the
construction contract will be submitted for consideration at the July Board
meeting. Construction work on the
project will be completed within six months.
The first five project elements (noted on the previous
page) will be included in the base bid price and the last three elements will
be bid as optional items. The low bid will
be determined based on the base bid price and the District will have the option
to include optional bid items in the construction contract. This approach is recommended to allow the
District the flexibility to include additional work in the construction
contract if the bid prices are lower than the engineer’s cost estimate due to
the competitive construction market.
Estimated construction costs for the five base bid items
total approximately $420,000 and the three optional bid items are an additional
$170,000. An allocation of $500,000 is
included in the District budget for the 2006 sewer line replacement
project.
E2 has earned $17,556 to date of the budget of $89,260
for design and construction support engineering services for this project.
Concur:
General Manager: RA Date: 5/19/06