Public Jobs

Bidding Closed
3/21/23 2:00pm
2023-2024 Treatment Plan Improvement Project (CIP 22706)
Bidding Closed
NapaSan
Napa , CA
The general scope of work for this project includes replacement of two primary clarifier drives and two secondary clarifier metal componets, and a new secondary clarifier coating system. Also included in the scope of work is the replacement of the ferric chloride chemical storage tank, piping, valves, accessories, and coating system replacement; sodium bisulfite chemical storage tank, piping, valves, accessories, and coating system; RAS/WAS wetwell discharge elbows and piping; H-Pad piping valves and pipe coating system; secondary effluent pump station valves; and Pond 4 pump station valves.
Bidding Closed
12/6/22 2:00pm
2023 Collection System Rehabilitation Project (CIP 22701)
Bidding Closed
NapaSan
Napa, CA
The general scope of work for this project included in the base bid and bid alternate is the rehabilitation and/or replacement of 4", 6", 8", 10", 12" and 18" sewer mains by the following methods: Approximately 18,900 LF by cured in place pipe (CIPP) lining, 9,200 LF by pipe bursting, and 850 LF by open cut methods. Also included in the scope of work is the rehabilitation or replacement of approximately 540 laterals and 51 sewer structures within the project area.
Bidding Closed
10/25/22 2:00pm
2023 CIPP Lining Project (CIP 23702)
Bidding Closed
NapaSan
Napa, CA
The general scope of work for this project is the rehabilitation of 6", 8" and 10" sewer mains by the following methods: Approximately 6,054 LF cured-in-place-pipe (CIPP) lining. Also included in the scope of work is the rehabilitation of approximately 31 laterals, installation of approximately 25 top hats, installation of approximately 17 cleanouts, and removal and replacement of approximately 4 flush holes.
Bidding Closed
8/23/22 2:00pm
Sanitary Sewer Manhole Adjustment CIP 13702 Phase XII
Bidding Closed
NapaSan
Napa, CA
Adjustment of sanitary sewer manholes and sanitary sewer flush holes to grade on various streets within the City of Napa that have been overlaid with approximately 2.5 inches of asphalt concrete. A valid Class A, Class C-34, or Class C-42 California contractor's license is required to bid on this project.
Bidding Closed
1/18/22 2:00pm
North Napa Siphon Gate Replacement Project (CIP 21718)
Bidding Closed
NapaSan
Napa, CA
The general scope of work for this project includes removal of three existing hydraulic stop gate frames and replacement with three new corrosion resistant slide gates, removal of three existing manhole frames and covers and replacement with three composite structure frames and covers, and installation of odor control inserts at the existing North Napa Siphon Inlet Structure. The estimated cost of construction is $330,000
Bidding Closed
12/2/21 2:00pm
2022 Manhole Rehabilitation Project CIP 20702
Bidding Closed
NapaSan
Napa, CA
Manhole rehabilitation by chemical grout injection (approx 74 manholes).
Bidding Closed
12/14/21 2:00pm
2022 Collection System Rehabilitation Project (CIP 21701)
Bidding Closed
NapaSan
Napa, CA
The work for the 2022 Collection System Rehabilitation Project includes mobilization, demobilization, procurement and installation of materials for the rehabilitation of approximately 33,332 LF of sewer main and associated laterals, manholes, and other structures as shown in the Project technical specifications and plans in the bid package. The main rehabilitation will consist of approximately 33,332 LF of cured in place pipe (CIPP).
Bidding Closed
2/2/21 2:00pm
2021 Treatment Plant Improvements Project (CIP 20708)
Bidding Closed
NapaSan
Napa, CA
The general scope of work for this project includes replacement of three polymer storage tanks; replacement of concrete tank bases; connection of tanks to existing fill, recirculation, and suction piping; construction of temporary polymer storage tank and associated piping; demolition of existing tanks and concrete bases; concrete coating; and replacement of existing ultrasonic level sensor and transmitter. Also included in the scope of work is the replacement of three 36-inch diameter butterfly diversion valves located within the treatment plant gallery.
Bidding Closed
1/13/21 2:00pm
Pond Levee Maintenance Project - 20707
Bidding Closed
NapaSan
Napa, CA
All of said work is to be done at the places and in the particular locations, of the form, sizes and dimensions and of the materials, and to the lines and grades and at the elevations as shown on the plans and specifications made therefore and approved by the Owner.
Bidding Closed
1/14/21 2:00pm
66-inch Trunk Sewer Rehabilitation Project: Kaiser Road to SWRF (CIP 19701)
Bidding Closed
NapaSan
City of Napa
The general scope of work for this project is the rehabilitation of approximately 6,900 LF of existing 66-inch diameter sanitary sewer mains with cured-in-place pipe (CIPP) and associated manhole installation, replacement, and rehabilitation within the project alignment.