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* Certified Data provided for On-System Daily Vehicle Miles, Centerline Miles and Lane Miles are based on calendar year 2023, provided by TPP-Data Management. These mileage statistics are On-System only (under the jurisdiction of TxDOT).
| County | Value * |
|---|---|
| Bastrop | 3,113,703.658 |
| Blanco | 819,549.331 |
| Burnet | 2,170,357.998 |
| Caldwell | 1,604,256.814 |
| Gillespie | 889,577.228 |
| Hays | 6,135,064.419 |
| Lee | 831,495.839 |
| Llano | 637,505.960 |
| Mason | 177,319.151 |
| Travis | 22,557,022.360 |
| Williamson | 11,215,393.656 |