Downs Substation Expansion Project

5 Documents in Project


SCH Number
Lead Agency
Public Utilities Commission, California (California Public Utilities Commission)
Document Title
Downs Substation Expansion Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Substation: Vacant; Zoning: General Commercial; GPD: Commercial and Office Use (C)

Document Description
Southern CA Edison proposes to upgrade and expand the existing Downs 33/12-kV Substation to a 115/12-kV substation containing a 115-kV switchrack; Route an existing 115-kV subtransmission line into and out of the proposed substation; and install a fiber optic telecommunication system (58 miles) to provide communication circuits for the protection, monitoring, and control of subtransmission and substation equipment. As part of the installation of the fiber optic telecommunication system, SCE would need to replace approximately six existing 115-kV subtransmission line wood poles to support the new fiber optic telecommunications facilities where the existing wood poles do not meet CPUC General Order 95 wind loading requirements and/or SCE design standards.

Contact Information
Eric Chiang
California Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94404

Phone : (415) 703-1956


35°37'18"N 117°41'20.75"W
Kern San Bernardino
Cross Streets
Downs St. & W. Ridgecrest Blvd. (substation)
Total Acres
Parcel #
508-200-06 (4.6)
State Highways
Hwy 178
Trona, UPRR
Inyokern Airport
Ridgecrest Charter,
Other Location Info
City/Nearest Community: Inyokern, Argus, Trona

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (fiber optic telecommunications cable) Power:Other Power Type (115/12 KV Watts)
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Economics/Jobs Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Department of Parks and Recreation California Department of Transportation, District 6 California Department of Transportation, District 8 California Highway Patrol California Regional Water Quality Control Board, Lahontan Victorville Region 6 Caltrans, Division of Aeronautics Department of Fish and Wildlife, Region 6 Department of Water Resources Office of Historic Preservation Resources Agency California Native American Heritage Commission California Department of Transportation, District 9 California Department of Fish and Wildlife, Central Region 4

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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