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Invitation to Bid – Phoenix Lake Restoration and Preservation Project

Invitation to Bid: Phoenix Lake Restoration and Preservation Project

To: Contractors

The Phoenix Lake Restoration and Preservation Project consists of removing up to 470,000 CY of sediment out of Phoenix Lake and placing it on adjacent land. Dry excavation and wet dredging operations may be used. The primary goals of the project are to restore drinking water storage capacity, improve water quality, and enhance wetland functions and values.

Phoenix Lake is an 88‐acre water storage reservoir located near Sonora, California used as a primary drinking water source. Storage capacity of the lake is reduced due to sediment accumulation. TUD has received funding through Integrated Regional Water Management (IRWM) grants from the California Department of Water Resources (DWR). Qualified Contractors should contact Makayla Dillon, Management Analyst, at 209‐532‐5536 ex. 512 or email mdillon@tudwater.com to be placed on a distribution list for all project information.

Sealed proposals for the construction of the Phoenix Lake Preservation & Restoration Project addressed to the Tuolumne Utilities District, 18885 Nugget Boulevard, Sonora, California 95370, will be received at the office of the District until 2:00 p.m., local time, on Thursday, April 30, 2020, and will then be publicly opened and read. To request a digital copy of the plans and specifications, please contact Mrs. Makayla Dillon at (209) 532-5536 ext. 512 or mdillon@tudwater.com.

A mandatory pre-bid conference will be held remotely due to the COVID 19 Pandemic. Bidders shall request access to the two pre-recorded videos from Mrs. Dillon, watch them, and notify Mrs. Dillon via email that they have watched them before 2:00 pm on Wednesday, April 22, 2020. Any bidder that does not notify Mrs. Dillon before that time will not be eligible to bid. Bidders may also participate in an optional site visit taking place on April 23, 2020. Contact Mrs. Dillon to schedule a time.

The project site consists of approximately 88 acres, a combination of lake footprint and protected wetland habitat, and an adjacent apple orchard of approximately 31 acres. In general, the project objectives are as follows: restore reservoir storage capacity by dredging approximately 470,000 cubic yards of sediments, minimize the need to export excavated material outside of project limit, preserve wetland habitat area in and around the lake, place and grade all suitable excavated sediments onto adjacent properties, maintain minimum water surface elevation of 2376’ inside the lake intake tower at all times, maintain a minimum of 27 acre‐feet operation pool, and continuously divert approximately 15 cubic feet per second into the outlet tower and maintain 2 cubic feet per second of flowrate within Sullivan Creek during construction. The work consists of, but is not limited to dry dredging, wet dredging, clam shell dredging, lake grading, reservoir dewatering, constructing temporary dams, temporary diversion berms, placing fill on adjacent properties, installing temporary fencing and lath flags for undisturbed soils, landscaping and erosion control, clearing and grubbing, incorporating organic material into the earthwork per specifications, temporary creek crossing bridge, coordinating and facilitating fish relocation by others during dewatering operation, and creek bypass operation using pumps/pipes/valves at and around Phoenix Lake in Tuolumne County, CA.

Contact Information:

Engineering Department
Makayla Dillon
Management Analyst
209-532-5536 x 512
Mdillon@tudwater.com

Submit Proposals To:

Tuolumne Utilities District
Attn: Makayla Dillon
18885 Nugget Blvd.
Sonora, CA.  95370

Project Documents
1) Phoenix Lake Plan Set
2) Project Specifications
3) Bid Appendix and Maps

Post Date

April 16, 2020

Close Date

By 2pm on Thursday,
April 30, 2020

Contact Information

Engineering Department
         Gaddiel DeMattei, P.E.
         Associate Engineer
         209-532-5536 x 519
         gdemattei@tudwater.com  

Submit Proposals To:

        Tuolumne Utilities District
        Attn: Makayla Dillon
        18885 Nugget Blvd.
        Sonora, CA.  95370
        mdillon@tudwater.com

Request Invitation to Bid Packet

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