Ambrose Debris Screen Project

2 Documents in Project


SCH Number
Lead Agency
Contra Costa Water District
Document Title
Ambrose Debris Screen Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Contra Costa Canal Right of Way
Document Description
The proposed project would replace the existing trash rack (also known as a bar screen) within the United States Bureau of Reclamation (Reclamation) fee-owned right-of-way at Milepost 19.5 of the Contra Costa Canal (the “Canal”) with a similar bar screen at the same location. The proposed project also would add a screen upstream of the existing bar screen and modernize debris handling functionality with a mechanical system known as a trolley rake. A trolley rake is a hydraulic system that would remove vegetation and debris from the added screen. The rake travels on a rail across the width of the Canal.

Contact Information

Mark Seedall
Agency Name
Contra Costa Water District
Job Title
Principal Planner
Contact Types
Lead/Public Agency


Contra Costa
Citywide, Countywide, San Francisco Bay Area
Cross Streets
Memorial Way and Bailey Road
Total Acres
State Highways
Hwy 4
Rancho Medanos
Suisun and Honker Bay

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Delta Stewardship Council, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights
Development Types
Water Facilities (New Debris Screen, Bar Rack and Mechanical Harvesting )(Type Repair, MGD 194), Other (Water Utility)
Local Actions
Use Permit
Project Issues
Aesthetics, Air Quality, Biological Resources, Noise, Transportation
Local Review Period Start
Local Review Period End


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