Colusa-Sutter Transmission Line (CoSu Line)

2 Documents in Project


SCH Number
Lead Agency
Sacramento Municipal Utility District
Document Title
Colusa-Sutter Transmission Line (CoSu Line)
Document Type
NOP - Notice of Preperation

Document Description
The proposed project consists of a 500 kilovolt transmission that would connect the California-Oregon Transmission Project on the west side of the Sacramento Valley, in Colusa or Yolo counties, to Western Area Power Administration's (WAPA) and SMUD's existing substations in Sutter or Sacramento counties. The Colusa-Sutter Transmission Line (CoSu Line) is needed to enhance reliability of the electrical grid in Northern California and provide a new energy pathway for SMUD to import power from and export power to energy markets in the Pacific Northwest. From Dec. 18, 2015 to April 18, 2016 there was an initial EIS/EIR scoping period for a proposed project located in Colusa and Sutter counties. In response to public and agency comments received, SMUD and WAPA have added a third study area corridor located in Yolo and Sacramento counties for public scoping.

Contact Information
Kim crawford
Sacramento Municipal Utility District
6201 S Street, Mailstop H201
Sacramento, CA 95817



Colusa Sacramento Sutter
State Highways
I-5; Hwy 20, 45
Sacramento River

Notice of Completion

Review Period Start
Review Period End
Development Type
Power:Other Power Type (Electric transmission 500 kilovolt)
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Economics/Jobs Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
California Department of Boating and Waterways California Department of Parks and Recreation California Energy Commission California Highway Patrol California Public Utilities Commission Caltrans, District 3 Caltrans, Division of Aeronautics Department of Fish and Wildlife, Region 2 Department of Water Resources Native American Heritage Commission Office of Historic Preservation Resources Agency Central Valley Flood Protection Board Regional Water Quality Control Bd., Region 5 (Sacramento) Department of Conservation State Lands Commission
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