Site work for a water / sewer project in San Jose, California. Completed plans call for site work for a water / sewer project.

Project has been Rebid Construction of a 550-foot fish lane over a bladder dam, repair of the Pond 10B berm, connection of the fish lane to the historical channel, and replacement of one underflow radial gate with an overflow gate. Online Q&A No Estimated Bid Value $7.5M - $9M *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. Project Description The Project scope includes the following: Prepare project site, including putting up preservation fences to protect vegetation and culturally sensitive areas, demolishing and disposing of the concrete apron, and demolishing and disposing of existing grouted rock slope protection to prepare for the construction of a new rock slope with a new grade. Control of water at the construction site, including dewatering and diversion of water from the Coyote Percolation Pond and groundwater, to ensure the work is conducted in dry conditions. Furnish all labor, materials, equipment, and incidentals necessary to construct an approximately 500 LF fish passage lane using engineered streambed materials, including boulders, cobble, and gravel, complete with a low-flow inset channel. d. Excavate, place, and compact embankment materials to construct a separation berm between the fish lane and the historical Coyote Creek channel and furnish and install a clay composite liner to limit seepage and maintain hydraulic separation. e . Furnish and install grade control structures within the historical Coyote Creek channel, including boulder drop-pool features, complete with foundation preparation , placement, and stabilization. f. Modify the existing fish ladder by furnishing and installing submerged orifices through existing weir plates and constructing in-ladder refuge boxes, including all appurtenances.Remove the existing radial gate at the left abutment of the dam and furnish and install a new crest gate, including all structural, mechanical, and control components.Construct a reinforced concrete end sill and receiving pool downstream of the crest gate, including formwork, reinforcing steel , concrete placement, and finishing. Construct a sloped flow transition chute from the receiving pool to the fish ladder attractant pool , including grading and formation of a low-flow notch to maintain minimum flow depth. Furnish and install a float-activated drain system within the receiving pool , including piping, valves, controls, and all associated components required for operation. Modify the existing attractant pool by enlarging and deepening, including excavation, structural modifications, and finishing, to reduce turbulence and improve fish attraction to the fish ladder entrance. Demolish and reconstruct the breached separation berm at Pit 10B and construct a stabilized, naturalized channel tie-in to the historical Coyote Creek channel , including all grading, bank protection, and stabilization. Furnish and construct a spillway over the separation berm , including excavation, grading, and placement of erosion-resistant materials, to convey high flows into Pit 10B and prevent future berm failure. Excavate, backfill , and regrade the incised historical channel from Pit 10B to the base of the percolation dam using engineered streambed materials.