Public Utilities

Public Utilities

Subtransmission Project (STP)

Project Purpose:

The purpose of the project is to reinforce Riverside Public Utilities’ electrical transmission system in the north-eastern part of the city.  It will improve the ability to service customers during times of peak demand and under emergency conditions.  The project adds close to 4 miles of double circuited 69 kilovolt transmission lines to the network and reconfigures existing connections between various substations.

Project Location:

The project area is bordered on the west by State Highway 91 and on the east by Interstate 215.  The first segment begins at Vine and Tenth Streets and heads east to Chicago Ave.  From there, it heads south along Chicago Ave. to about a quarter mile south of Martin Luther King Blvd.   The line heads east through the University of California Riverside (UCR) Agricultural Research property.   The second segment begins about 600 feet north of where the first line ended.  It will intercept the same north-south line on UCR’s property and head east across Canyon Crest Dr. to the 60/215 Freeway.  From there, it will turn south along the west side of the Freeway and continue south-easterly to the south side of El Cerrito Drive where it will intercept an existing transmission line. 

Project Contact:

George Hanson
Electrical Engineering Manager, Energy Delivery
(951) 826-2400 direct

STP Hotline
(951) 826-2330

Completed Construction Timeline:

more info here...

Subtransmission Project (STP) Documents:

- STP Final Mitigated Negative Declaration
- STP Appendix A
- STP Appendix B
- STP Appendix C - Part 1
- STP Appendix C - Part 2 (20mb)
- STP Appendix C - Part 3 (22mb)
- STP Appendix C - Part 4 (25mb)
- STP Appendix C - Part 5 (24mb)
- STP Appendix C - Part 6 (25mb)
- STP Appendix D
- STP Appendix E
- STP Appendix F


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