About Austin Tolls

Austin Tolls tracks the price of every tolled gantry and express-lane segment in the Central Texas Regional Mobility Authority network, and keeps a history so you can see what a trip normally costs rather than only what it costs right now.

Variable versus fixed rates

The MoPac Express Lane and the 183 North Express Lanes are dynamically priced. The rate rises as the lane fills so that traffic in it keeps moving, and it can change several times an hour. Everything else in the network is a fixed schedule that only changes when the Mobility Authority adopts new rates.

TxTag and Pay By Mail

The large number is the rate with a valid TxTag, TollTag or EZ TAG. The smaller by mail figure is what you are billed when no tag is read and the invoice goes to the registered owner — roughly 50% more.

Roads we track

• MoPac (Loop 1) Express Lane — Loop 1, variable rate
• US 183 North Express Lanes — US 183, variable rate
• 183A Toll (Cedar Park / Leander) — 183A
• 290 Toll (Manor Expressway) — US 290
• 183 Toll (Bergstrom Expressway) — US 183
• SH 45 Southwest Toll — SH 45 SW
• SH 71 Toll Lane — SH 71

Where the numbers come from

Rates are read directly from the Mobility Authority's own current rates feed every 120 seconds. We store a datapoint whenever a price moves.

API

There is a public read-only JSON API. No key required.

• GET /api/v1/rates/current/ — every current rate
• GET /api/v1/facilities/ — the roads
• GET /api/v1/toll-points/ — gantries, filterable by ?facility=, ?direction=, ?variable=1
• GET /api/v1/toll-points/<slug>/history/?hours=24 — rate history
• GET /api/v1/express/ — express lane signs with live prices
• GET /healthz — importer freshness

Fine print

This is an independent project. It is not affiliated with, endorsed by, or operated by the Central Texas Regional Mobility Authority or TxDOT. Prices shown here can lag the physical signs, and the posted sign is what you are charged. Always trust the sign over this site.