HomeMy WebLinkAbout2000-09-06 Agenda Packet - Board (13) DONNER
Public
Staff Report
To: Board of Directors
From: Neil Kaufman,Water System Engineer
Date: September 1, 2000
Truckee Falls Irrigation Pipeline Project
Contract Change Order No. 1
BACKGROUND
The Board of Directors awarded the Contract for construction of the Truckee Falls Golf Course
Irrigation Pipeline to Longo Construction. I am requesting a Change Order to the Contract for 6 items.
Item 1: Included in the original design was installation of a 24' steel casing across Donner Pass
Road.The design intent was to provide the casing for future installation of a 16'pipeline. It
was decided that direct installation of the 16'pipeline instead of the casing would require
less time and would be cheaper. Longo Construction proposed a credit to the District of
$14,925.00 for substitution of the 16'pipe for the casing.
Item 2: When the Contract was advertised for Bids,the Lahontan RWOCB was still reviewing the
project. Lahontan subsequently imposed some revegetation requirements regarding
restoration of the slope areas. Those requirements have been finalized and Longo
Construction provided a price of$9,900.00 to perform this revegetation work.
Item 3: The conceptual design of the irrigation system called for utilizing existing piping
from the Donner Creek Well to just north of 1-80 by the Middle School. It was
expected that this existing piping would have to be tested and potentially
rehabilitated in order to meet the new pressure requirements.
There is a 100-foot long portion of pipeline adjacent to the Shell Station that was
destroyed during the 1997 flooding. An encroachment permit was submitted to
CalTrans for reconstruction of this pipeline (intended to be done with District
crews). CalTrans determined that the drainage ditch that the pipeline would cross
is a wetlands area and that a Corps of Engineers permit would be required for
the proposed construction.
An alternative alignment involving the construction of 493 feet of pipe along the
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shoulder of SR 89 and down the Shell Station driveway was developed and
submitted to CalTrans. This alignment was discussed with the owner of the Shell
Station and he agreed to allow the construction. Longo Construction provided a
price of $38,889.81for construction of the additional 493 feet of pipe.
Item 4: In order to eliminate some uncertainties during the Bidding process, the Bidding
Documents were changed by Addendum to state that rock excavation would be
treated as a "Changed Condition" and the Contractor would be entitled to
additional compensation. A small amount of rock excavation was encountered
during the construction and an amount of $1,469.55 is due to Longo
Construction.
RECOMMENDATION
I recommend that the Board authorize Contract Change Order #1 in the amount of $35,334.36 and
extend the contract completion date to September 30, 2000.
Attachment-Contract Change Order#1
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Public Utility District
Staff Report
To: Board of Directors
From: Peter L. Holzmeister
Date: September 1, 2000
Rehabilitation of water pipeline in Highway 89
We solicited competitive bids to line a portion of leaking water line in Highway 89 that will be used to
provide service to Coyote Moon Golf Course and received no bids. The project size may have been
too small to generate interest.We would like authority to negotiate a contract to perform the repairs to
this line, and return to the Board with a proposal
RECOMMENDATION
I recommend that the Board authorize staff to negotiate a contract to repair the leaking portion of the
water line in Highway 89 that is to be used to provide service to Coyote Moon Golf Course and to
return to the Board for approval of the negotiated contract.
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