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* Certified Data provided for On-System Daily Vehicle Miles, Centerline Miles and Lane Miles are based on calendar year 2022, provided by TPP-Data Management. These mileage statistics are On-System only (under the jurisdiction of TxDOT).
| County | Value * |
|---|---|
| Armstrong | 153.911 |
| Carson | 317.081 |
| Dallam | 301.728 |
| Deaf Smith | 272.215 |
| Gray | 333.509 |
| Hansford | 260.906 |
| Hartley | 252.868 |
| Hemphill | 183.278 |
| Hutchinson | 208.086 |
| Lipscomb | 197.853 |
| Moore | 201.989 |
| Ochiltree | 212.070 |
| Oldham | 177.410 |
| Potter | 306.098 |
| Randall | 369.527 |
| Roberts | 120.317 |
| Sherman | 194.876 |