Our House Diversion Dam Apron Curtain and Access Bridge Repair, Yuba River Development Project
MND - Mitigated Negative Declaration
Present Land Use
The purpose of the project is to repair scour areas on the toe of the Our House Diversion Dam spill apron. Repair work would take place in the following steps: 1) install water diversion; 2) pressure wash the scour area with water to clean the area and expose sound concrete; 3) drill dowels into the concrete; 4) epoxy dowels into the holes; 5) mobilize a concrete pump and hoses to a level area near the apron, all underlain with polyethylene plastic sheeting for ground protection; 6) apply bonding agent on the surface to receive shotcrete; 7) place shotcrete; 8) clean up shotcrete rebound and remove the plastic sheeting; 9) allow shotcrete to cure; and 10) remove water diversion (after completion of mechanical sediment removal work). Additionally, the anchorages of the access bridge of the dam will be repaired simultaneously.
California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 3 (DOT), California Highway Patrol, California State Lands Commission (SLC), Central Valley Flood Protection Board, Department of Water Resources, Other Agency(ies), Resources Agency, State Water Resources Control Board, Division of Water Rights, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
State Reviewing Agency Comments
California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
Other (dam apron curtain repair)
Air Quality, Biological Resources, Cultural Resources, Hydrology/Water Quality
The document was originally posted before CEQAnet had the capability to host attachments for the public.
To obtain the original attachments for this document, please contact the lead agency at the contact information listed above.
You may also contact the OPR via email at firstname.lastname@example.org or via phone at (916) 445-0613.