Reference maps
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Reference maps

District and county map
District and county

Individual and the combined district and county maps.

Memorial Highways map
Memorial Highways

Memorial Highways pay tribute to notable people or groups and can be designated by the state or by local governments.

Metropolitan Planning Organizations map

Metropolitan Planning Organization (MPO) is required for each urban area with a population of more than 50,000 people.

Toll roads and HOV map (Houston)
Toll roads and HOV

Map of toll roads and HOV lanes, including details for toll names, IDs, operators, and mileage.

Texas House of Representatives map
Texas House of Representatives

Statewide map for each Texas House of Representative District.

Texas Senate map
Texas Senate

Displays each of the 31 Texas Senate Districts for Texas.

Congressional district

These maps show state-maintained roadways within Texas’s US congressional districts.

Control section

A convenient and reliable linear referencing method for locating features along a roadway.

Maintenance section routes

These maps show maintenance section routes by TxDOT district.


Peak hour on-system congestion maps.


The departmental map serves as a visualization of all on-system routes (those that TxDOT maintains).

Reference markers

A small green placard displaying a three-digit number that’s placed at intervals along all state-designated routes in Texas.

Large metros

The state’s largest densely populated urban cores and their less densely populated surrounding areas.

Statewide planning

The statewide planning map application contains the following TxDOT maps.

real property asset map

View the real property asset map showing property, utilities, and commercial signs.