Background

What is the projected cost of undergrounding?

SCE claims that undergrounding the project will cost $521 million compared to $408 million to build the RTRP overhead. However, in 2020, the California Public Advocates Office estimated that the costs of fully undergrounding this project by replacing the remaining 5 miles of overhead lines, when allocated to all transmission customers by the California System

2025-09-22T15:52:10-07:00September 22nd, 2025|

Why are the RTRP transmission lines underground in Jurupa Valley but above-ground in Norco?

In March 2020, the California Public Utilities Commission (CPUC) granted Southern California Edison (SCE) a certificate of public convenience and necessity for the Riverside Transmission Reliability Project. The decision explains that, before and after Riverside certified the EIR, the City of Jurupa Valley approved residential and commercial developments within the proposed alignment for SCE’s portion

2025-09-22T15:51:04-07:00September 22nd, 2025|

What steps has the City of Norco taken to underground the RTRP in Norco?

For nearly a decade, the City of Norco has communicated its concerns about the RTRP. Norco’s many requests, letters, petitions, and even proposals for legislation to underground the hazardous, high-voltage RTRP transmission lines in Norco and protect our city have been continuously denied or ignored. Visit Timeline to learn about the City of Norco’s ongoing

2025-09-22T15:50:38-07:00September 22nd, 2025|

Why does the City of Norco want the RTRP put underground?

The approved overhead transmission lines present significant safety and environmental hazards, specifically wildfire hazards, to Norco and many surrounding communities.The proposed 230,000-volt (230kV) electric transmission line route, which is similar to the transmission system under investigation as the potential cause of the Eaton Fire, runs through the same location as the 180-acre Mann Fire (a

2025-09-22T15:49:55-07:00September 22nd, 2025|

What is the Riverside Transmission Reliability Project?

The Riverside Transmission Reliability Project (RTRP) is a joint project between Southern California Edison (SCE) and Riverside Public Utilities (RPU) to build a new 230,000-volt (230 kV) electric transmission line, providing the City of Riverside with a second connection to the California electric grid. The project spans parts of Riverside, as well as sections of

2025-09-22T15:47:52-07:00September 16th, 2025|

Where exactly is the transmission tower being constructed in Norco?

The RTRP will construct a minimum 120-foot tall lattice steel tower adjacent to Norco's portion of the Santa Ana River and the residential neighborhood near Grulla Court in the north east part of Norco bordering the City of Riverside. The project will construct high-voltage transmission lines that will run over the vegetation-ridden Santa Ana River,

2025-09-22T15:49:29-07:00September 16th, 2025|
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