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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 * |
|---|---|
| Erath | 1,295,444.004 |
| Hood | 1,196,989.233 |
| Jack | 348,370.452 |
| Johnson | 3,976,005.268 |
| Palo Pinto | 1,205,199.957 |
| Parker | 4,473,591.076 |
| Somervell | 280,531.265 |
| Tarrant | 36,942,754.403 |
| Wise | 2,855,698.747 |