San Diego underground utility map
See what's likely under any San Diego street: water mains, sewers, gas, electric and telecom lines, drawn in 3D from the city's own public records. Free, with no account.
Open the San Diego mapWhere the lines come from
Street permits show which utility dug on which block. Subsola reads City of San Diego Development Services’ Right of way permits (Accela, 2021 on) and Right of way permits (PTS, before 2021). SDG&E, AT&T, Cox and Spectrum don't publish where their lines run, so their gas, electric and telecom lines are placed on the blocks those permits name, at the depths the codes require. Each line on the map says how it was placed and how sure that is.
Where the city or a utility maps its own lines, they're drawn on those routes, from City of San Diego Public Utilities’ Water mains, Sewer mains, and Recycled water mains and City of San Diego Stormwater’s Storm drain conveyances. Recycled water mains are drawn in purple, the color locators paint them.
Lead service lines
The city's inventory gives the utility and customer side material for each water meter.
Before you dig, call 811
Subsola is research, not a utility locate. California law requires a free locate request to DigAlert two working days before digging, so the utilities can mark their lines on the ground.
Sources
- Right of way permits (Accela, 2021 on)City of San Diego Development Services. City of San Diego open data (ODC-PDDL).
- Right of way permits (PTS, before 2021)City of San Diego Development Services. City of San Diego open data (ODC-PDDL).
- Water mainsCity of San Diego Public Utilities. SanGIS regional data (derived from SanGIS); city open data under ODC-PDDL.
- Sewer mainsCity of San Diego Public Utilities. SanGIS regional data (derived from SanGIS); city open data under ODC-PDDL.
- Storm drain conveyancesCity of San Diego Stormwater. SanGIS regional data (derived from SanGIS); city open data under ODC-PDDL.
- Recycled water mainsCity of San Diego Public Utilities. SanGIS regional data (derived from SanGIS); city open data under ODC-PDDL.
- Lead Service Line InventoryCity of San Diego Public Utilities. City of San Diego public inventory under the EPA Lead and Copper Rule; no open license stated.
The map also draws hydrants, inlets, street lights and signals, and streets and buildings, from the city's open data. Every card on the map names the record it came from.