Bridge conditions in Williamson County, Texas
1,171 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 1,171 bridges in Williamson County: 804 rated good, 363 fair, and 4 poor.
- 4 of the 1,171 bridges in Williamson County, Texas, are rated in poor condition (0.3%) in the 2025 National Bridge Inventory, as of .
- 804 bridges (68.7%) are rated good and 363 (31.0%) fair.
- The median Williamson County bridge was built in 2003.
- The busiest poor-rated bridge is FM 619 over Draw (built 1935), carrying about 1,224 vehicles a day.
Good 68.7% · Fair 31.0% · Poor 0.3% of 1,171 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| FM 619 over Draw | 1935 | 1,224 | Poor |
| CR 118 over Cottonwood Creek | 1926 | 506 | Poor |
| CR 126 over Mileham Br | 1922 | 100 | Poor |
| CR 434 over Brushy Creek | 1930 | 60 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 35 SB over South San Gabriel River | 1965 | 517,256 | Fair |
| Ih 35 Ml & Nbfr over Draw | 1960 | 209,037 | Fair |
| N Ih 35 Off Ramp over UPRR & Mcneil Rd | 2018 | 207,900 | Good |
| N Ih 35 on Ramp over UPRR & Mcneil Rd | 2018 | 207,900 | Good |
| Ih 35 over Lake Creek | 1960 | 160,231 | Fair |
| Ih 35 over McNEIL RD; UP RR; Etc | 1990 | 151,634 | Fair |
| US 183 Ml & Fr over Lake Creek | 1994 | 139,135 | Fair |
| Ih 35 over Onion Branch | 1960 | 138,115 | Fair |
| Ih 35 over US 79 | 1990 | 138,115 | Fair |
| Ih 35 over Brushy Creek | 1960 | 131,906 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Texas: Texas bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.