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Undergrounding Power Lines in Targeted High Fire Risk Areas
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SCE is working to further reduce the threat of wildfire by burying power lines in the highest-risk areas, especially where lines have not been replaced by covered conductors. SCE is targeting the highest-risk areas, known as severe-risk areas, for undergrounding its power lines based on several considerations, including the difficulty of evacuating quickly during a significant wildfire. The targeted undergrounding effort will make the electrical system more reliable during extreme weather conditions by protecting it from high winds, vegetation, and other hazards that could cause fires or power outages.
To learn more about targeted undergrounding in your area, refer to the maps and the fact sheet.
Note: For undergrounding projects not related to wildfire mitigation, refer to Rule 20 undergrounding projects, which are initiated by a governmental agency (e.g., city, county), developer, or individual customer.
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Undergrounding Work Phases
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Planning
During this phase, SCE planners and surveyors will conduct a feasibility assessment to help determine the scope of work that will take place in a selected community. They will gather data and make observations to analyze ...Read More the feasibility of undergrounding electrical lines, which may include accessing and taking images of equipment and surrounding areas. This analysis is a critical assessment to determine if this type of work can be completed at the proposed location. Read Less 1
Permitting
Once the scope of work is established, SCE can determine if permitting is required. Most projects require at least one permit for road closures, typically from a city, county, or Caltrans. Additional permit requirements depend ...Read More on the project’s location. They may include state and federal land permits, environmental clearances, private property easements, Federal Aviation Administration approvals, or railroad rights-of-way permits. Permit approval may take as little as two months, or the process may be significantly longer. Read Less
Construction
Work can be scheduled, and construction can begin once all the required permits are received. 2 In most cases, this work will require a power outage at ...Read More at the end of construction when the power is ready to be switched from the overhead to the underground lines. We will notify customers in advance if an outage is needed.Read Less
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Targeted Undergrounding Work Status
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Frequently Asked Questions
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SCE is pursuing undergrounding to help reduce the risk of wildfires and increase reliability during extreme weather conditions. We have identified certain high fire risk areas where it is prudent to move power lines underground for public safety reasons if they are not already hardened with covered conductors and feasible. SCE may choose to underground power lines in areas that meet specific criteria, including limited exit and entry points to communities, extreme potential consequences, and other factors. Learn more about undergrounding as a wildfire mitigation measure with this fact sheet.
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While SCE is removing electrical overhead lines and equipment and putting them underground in targeted areas, poles that have lines and assets owned by other companies (e.g., telecommunications, cable, etc.) may remain above ground. SCE will communicate the scope of work with telecommunications companies to allow them the opportunity to underground their lines at the same time.
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In situations where an electrical line is not undergrounded, SCE will continue to pursue other mitigations, such as replacing the bare wire with covered conductor. This is one of the most valuable tools in cost-effectively and expeditiously reducing ignition risk, especially when supplemented with inspections and vegetation management. Learn more about SCE’s wildfire mitigation efforts at sce.com/mitigation.
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While an undergrounding project may be taking place in your neighborhood, the scope of work depends on the specific portions of the circuit lines being targeted for undergrounding that may or may not feed your home or neighborhood. The project team carefully evaluates the power lines that meet the targeted undergrounding criteria, including limited exit and entry points to communities, extreme potential consequences and other factors.
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SCE is undergrounding power lines to help reduce the risk of wildfires and increase reliability during extreme weather conditions. We have identified certain high fire risk areas where it is prudent to move power lines underground for public safety reasons if not already hardened with covered conductor and feasible to do so. Our goal is safety and not necessarily aesthetics. SCE may choose to underground power lines in areas that meet certain criteria, including limited exit and entry points to communities, extreme potential consequences and other factors. If you’d like to know if your community has been scoped for undergrounding for wildfire mitigation purposes, please refer to our maps by county. Governmental agencies (e.g., city, county), developers or individual customers interested in initiating an undergrounding project not related to wildfire mitigation, please refer to Rule 20 projects.
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The SCE targeted undergrounding website provides maps by county for the scope of work we’re planning in different communities. Different stages of the undergrounding work will require different permits. During the planning phase, SCE will initiate early permit applications with the city, county and CalTrans. We’ll also initiate any government lands and environmental requirements. As we move into the scheduling phase, we’ll perform the standard permitting and easement processes, perform the environmental clearance process and obtain additional agency permits, if required. Undergrounding construction requires disturbance along the entire route, which could require approval from multiple agencies and jurisdictions, as well as more extensive reviews and approval.
If SCE is unable to obtain the appropriate permits, easements or other agency approvals prior to the start of construction, changes may be made to the proposed targeted undergrounding work.
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Undergrounding is a very complex project, and because of that, the timing of the work is subject to change as the work progresses. Work will typically occur from 7 a.m.-7 p.m., Monday through Friday and with occasional work on weekends. The times will be the same for undergrounding work but may require 24-hour work for underground drilling in some locations.
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SCE vehicles will feature the company’s logo. Anyone associated with the work will also carry ID badges.
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The targeted undergrounding work may require occasional access to individual property, but notification will be made ahead of time to property owners. We understand the stress that traffic can have on all of our lives and SCE will work very closely with the city on public outreach around the traffic impacts so we can make sure folks plan their commute and daily errands around the closures. We can’t eliminate the impact of lane closures, but we can minimize inconveniences by spreading the word.
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If you believe SCE is responsible for damage to your property incurred during the undergrounding work, you may submit a claim. SCE Claims department will evaluate claims on a case-by-case basis. You can find more information about filing a claim by visiting sce.com/claims.
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If you have specific questions not answered on the website, you can leave a voicemail for the project team on its dedicated phone voicemail box at 1-888-331-0010.
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Additional Information
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Contact Us
Please email us or leave a voice message for the Targeted Undergrounding project team on our dedicated phone voicemail.
Email: SCEprojects@sce.com
Phone: 1-888-331-0010
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Creating New Underground Paths for Power Lines
Find stories and videos about our targeted undergrounding efforts on Energized by Edison. You can also stay informed by signing up for monthly newsletters.
1 An assessment is only to determine the feasibility of undergrounding power lines in the areas identified. It is not guaranteed that SCE will perform this work in your community.
2 Work may be rescheduled or delayed for various reasons, including crews' need to focus on emergency repairs, outage restrictions during heat storms, and the discovery of endangered species or historical artifacts on-site.