HomeMy WebLinkAbout12 Pioneer Trail Pipeline Award• Tahoe Donner Subdivision
• 5,600 single-family residences
• 400 multi -family residences
• Other development — Clubhouses, golf course, downhill ski area, etc.
• 44% of water system customer base
• Additional 500 residential units expected at buildout
• Served by a single 14-inch diameter pipeline
• Two pump stations
• Two storage tanks that serve as forebays for the pump stations
• Constructed in about 1970
• Approaching end of their useful life
• A second pipeline into the Tahoe Donner area is needed
• Project identified in the Water System Master Plan
• 16-inch pipeline
• West end connects to existing 16-inch pipeline in Northwoods Blvd.
• East end connects to 24-inch pipeline near Comstock Drive
• Downsized from 20-inch pipe identified in the Water System Master Plan
• Joint trench including 6-inch electrical & 2-inch communication conduit
• 3,000 gpm pump station
• Located on District -owned property
• Near TNT concrete batch plant
• Three contracts previously awarded to outside consultants
• Water Works Engineers - Design assistance for Trout Creek crossing
and hydraulic transient analysis
• Sauers Engineering - Pump station design
• Helix Environmental Consulting - CEQA review
• CEQA Initial Study/Mitigated Negative Declaration
• Made public on March 12
• Public comment period closed on April 12
• Board approval for CEQA purposes on May 4
• Overall project broken into two construction contracts
• Scope of pipeline contract
• Approximately 8,150 feet of 16-inch water pipe
• Approximately 7,800 feet of 6-inch and 2-inch conduit
• Five fire hydrants
• Valves and pipe fittings
• Eleven primary power vaults and one switch pad
• Construction of a utility crossing of Trout Creek on the existing bridge
• Advertising for bids
• Began on April 18
• Bid opening on May 19 at 2:00 pm
• Two bids were received
Bidder
Location
Bid Price
Responsive
C&D Contractors
Burdick Excavating
Grass Valley, CA
Carson City, NV
$4,497,043
$5,296,845
Yes
Yes
• Long lead time for 16-inch pipe
• 4 to 5 months for delivery
• Project schedule
• Award of pipeline construction contract - June 1, 2022
• Installation of Trout Creek crossing - Sept -Oct 2022
• Installation of valve at east end of pipeline - Sept -Oct 2022
• Completion of pipeline project - September 2023
• District staff is reviewing 95% submittal for the pump station
• Advertising for bid in early June
• Bid opening in early July
• Bid price from C&D Contractors is $4,497,043
• Ten percent change order allowance is recommended
• Total of authorization of $4,950,000
• Joint project between Water and Electric Departments. Cost
allocation is:
Amount
Percentage
Water Department
$ 3,613,391
80.4%
Electric Department
$ 883,652
19.6%
Change Order Allowance
$452,957
10%
Total
$4,950,000
110%
• FY 2022 Water Department budget includes $2,555,000 for the Pioneer
Trail Pipeline
• Based on the C&D bid price, the Water Department's portion of cost
including potential change orders is $3,980,000
• $1,425,000 over budget
• Absorbed overtime within the 10-year CIP
• Electric Department's portion of cost including potential change
orders is $970,000
• Project not specifically identified in FY 2022 of 2023 budgets
• Sufficient funds are available in Electric Department Capital Reserve
Fund Balance of $11.3 million as of 12/31/2021
• Award of the pipeline construction
the constructing the pump station
• Budget of $2,865,000
• $350,000 in FY 2022
• $2,515,000 in FY 2023
contract commits the District to
project
• Both projects are budgeted and recommended to be funded by the
water new debt issuance
• Authorize the General Manager to execute a contract with C&D
Contractors in an amount of $4,497,043, plus a ten percent change
order allowance for a total authorization not to exceed $4,950,000 for
the Pioneer Trail Pipeline Project