Devers-Colorado River Substation No. 1 500-Kilovolt Transmission Line Rating Remediation Project

4 Documents in Project


SCH Number
Lead Agency
California Department of Fish and Wildlife, Region 6 (CDFW)
Document Title
Devers-Colorado River Substation No. 1 500-Kilovolt Transmission Line Rating Remediation Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
PLU: Utility corridor Z: CBP-2, W-2, W-2-5, W-2-10, OS-W, Industrial park, light ag, I-L, M-SC, MU-N, N-A, R-1, OS and O-S, OS-R, PMP, R-A, RE-2-5, R-L, R-S, RD, SP, Watercourse, watershed, W-1, W-E GPD: Ag, commercial retail, floodway, light industrial, medium density res, OS-R, PF, RE - Low density, res single fam, resource recovery, rural desert, rural res, tribal lands, vacant, water
Document Description
Note: Review Per Lead The project is located in unincorporated eastern Riverside County, between the existing Devers Substation and the existing Colorado River Substation. The project is within Southern California Edison's existing ROW for the Devers-Palo Verde No. 1 500 kv transmission line that extends from the Devers Substation east to the Palo Verde Nuclear Generating Station in Arizona Segment 1 includes reconductoring of approx 80 mi of existing line and replacement of hardware on 281 existing structures (between the Devers Substation and Red Bluff Substation). Segment 2 includes reconductoring of approx 31 mi of existing line and replacement of hardware on 93 existing structures (between the Colorado River Substation and the Red Bluff Substation). All work includes temporary ground disturbance to replace new hardware and lines on existing towers, with no new permanent disturbance or proposed new permanent structures. As proposed, the project would correct phase-to-ground discrepancies and would not involve an increase in the capacity. In addition, infrastructure such as fiber-optic cable would not be installed or collocated with replacement conductor.

Contact Information

Kimberly Freeburn Marquez
Agency Name
California Department of Fish and Wildlife, Region 6
Contact Types
Lead/Public Agency


Blythe, Coachella, Desert Hot Springs, Palm Springs
Cross Streets
Total Acres
111-mi trans
Parcel #
State Highways
I-10, SR 62, 111, 195, 177
Chiriaco Summit, Julian Hinds Pu
Rio Vista ES, James Workman MS, Xavier College Prep HS, Desert R
Coachella Canal, Colorado River Aqueduct
Other Location Info
Thousand Palms, Desert Center

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Coachella Valley Mountains Conservancy (CVMC), California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Energy Commission, California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Caltrans, Division of Aeronautics, Colorado River Board, Department of Fish and Wildlife, Region 6, Department of Water Resources, Office of Historic Preservation, Resources Agency
Development Types
Power:Other Power Type (transmission line remediation)
Local Actions
transmission line remediation
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire, GHG

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.

Download CSV New Search Print