Los Angeles underground utility map
See what's likely under any Los Angeles 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 Los Angeles mapWhere the lines come from
Street permits show which utility dug on which block. Subsola reads LA Bureau of Engineering’s Excavation (U) permits, active and Excavation (U) permits. SoCalGas, LADWP, AT&T 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 LA Sanitation’s Sewer Pipes, Sewer Laterals, and Storm Pipes. LADWP publishes no water mains, so water comes from permits too.
Lead service lines
LADWP reports no lead service lines needing replacement and publishes no inventory by address, so the map shows none.
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
- Excavation (U) permits, activeLA Bureau of Engineering. City of Los Angeles GeoHub open data.
- Excavation (U) permitsLA Bureau of Engineering. City of Los Angeles GeoHub open data.
- Sewer PipesLA Sanitation. City of Los Angeles GeoHub open data.
- Sewer LateralsLA Sanitation. City of Los Angeles GeoHub open data.
- Storm PipesLA Sanitation. City of Los Angeles GeoHub open data.
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.