Beta
Denver underground utility map
See what's likely under any Denver 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 Denver mapBeta. Denver publishes street permits only from 2020 on, and Denver Water publishes no water mains, so water, gas, electric and telecom lines are placed from a few years of permits.
Where the lines come from
Street permits show which utility dug on which block. Subsola reads Denver Department of Transportation and Infrastructure’s Street occupancy permits. Xcel Energy, Lumen and Comcast 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 Denver Wastewater Management’s Sanitary sewer mains and Storm sewer mains. Denver Water publishes no mains, so water comes from permits too.
Lead service lines
Denver Water's inventory gives the service line category for each premise it serves.
Before you dig, call 811
Subsola is research, not a utility locate. Colorado law requires a free locate request to Colorado 811 two business days before digging, so the utilities can mark their lines on the ground.
Sources
- Street occupancy permitsDenver Department of Transportation and Infrastructure. City and County of Denver open data (CC BY 3.0); not for engineering purposes.
- Sanitary sewer mainsDenver Wastewater Management. City and County of Denver open data (CC BY 3.0); not for engineering purposes.
- Storm sewer mainsDenver Wastewater Management. City and County of Denver open data (CC BY 3.0); not for engineering purposes.
- Lead service line inventoryDenver Water. Denver Water public inventory map; 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.