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Bidjugde
JOB
New River Improvement (REBID)
BID DATE
11/30/22 - 2:00
AGENCY
Calexico
ESTIMATE
n/a
SCOPE
Mountain Cascade, Inc - $41,734,276 Installing a Trash Screen across the New River and building a structural concrete Diversion Structure for the New River at a point approximately 900 feet downstream from the US-Mexico International Boundary in Calexico. These tasks also entail: Construction of a temporary diversion channel and coffer dam to build the Diversion Structure and Trash Screen. Demolition work and site improvements including grading, erosion control, fencing and installation of two security gates, lighting, and construction of a new paved access road over an existing dirt road. Removal of an existing security screen that is across the New River, between 2nd Street and the International Boundary. Installing approximately 1.5 miles of a 72-inch underground fiberglass reinforced mortar pipe (FRM pipe) to convey via gravity polluted New River water from the Diversion Structure to a point just upstream of where the All-American Canal Siphon goes over the New River. This work also requires: Building an Energy Dissipater at the end of the 72-inch FRM pipe to prevent erosion of the New River channel at the outfall of the 72-inch FRM pipe. Construction of a small temporary coffer dam to build the Energy Dissipater. Construction of a Pump-back System to replace the polluted water in the river channel that flows adjacent to City neighborhoods with clean, treated wastewater from the Calexico Wastewater Treatment Plant (WWTP). The Pump-back System consists of a 5.0-million gallons per day sewage lift station and the installation of approximately 4,000 feet of a 16-inch Ductile Iron Pipe forcemain. Grading and erosion control of an area just above where the 72-inch FRM pipe outfalls into the River. https://www.calexico.ca.gov/index.asp?SEC=02C8C65F-C700-4B9B-BDB2-2578C0C0CF5C&DE=E3B2F5ED-E385-4408-BC11-DB473A985688 falomirl@calexico.ca.gov
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