Clipper Creek Siphon Replacement


SCH Number
Lead Agency
Nevada Irrigation District
Document Title
Clipper Creek Siphon Replacement
Document Type
NEG - Negative Declaration
Present Land Use
Water transmission facility
Document Description
The intent of this project is to construct a new welded steel, ductile iron or concrete cylinder pipe material raw watre transmission pipeline to convey the raw water that currently flows through the existing Clipper Creek Siphon. This existing pipeline was constructed using Techite pipe: a reinforced plastic mortar pipe material manufactured on the 1970s. Approximately 5,400 ft of Techite in the Cascade Shores Siphon upstream of the Clipper Creek Siphon was removed and replaced with concrete cylinder pipe in the late 1970s after a significant pipe rupture. The remainder of the Cascade Shores Siphon was replaced with the Cascade Flume Replacement Project in 2002, with the Techite materials replaced with welded steel pipe.

Contact Information

Brian Powell
Agency Name
Nevada Irrigation District
Contact Types
Lead/Public Agency


Nevada City
Cross Streets
Red Dog Rd & Banner Lava Cap Rd
State Highways
Hwy 49, 20

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
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 Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Department of Water Resources, Office of Historic Preservation, Resources Agency
Development Types
Water Facilities (Type pipeline, MGD CFS 95), Other (pipeline replacement)
Local Actions
Project Issues
Aesthetics, Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Public Services, Transportation, Vegetation, Wetland/Riparian, Wildfire

Disclaimer: 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 or via phone at (916) 445-0613.

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