Simonsville Road over Llano River
Mason County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Simonsville Road over Llano River in Mason County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1936, making it 89 years old at the 2025 inventory.
- It carries about 52 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 46 of the 84 inventoried bridges in Mason County rated fair (54.8%); 1 (1.2%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (30.64009, -99.16819)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 220 ft |
| Location | 4.90 Mi NW of FM 733 |
| NBI structure number | 141570AA0191001 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Mason County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 87/SH 29 over Koocks Branch | 2015 | 7,181 | Good |
| US 87 over Draw | 1929 | 5,279 | Fair |
| US 87 over Gamels Branch | 1935 | 4,653 | Fair |
| SH 29 over Comanche Creek | 1939 | 3,472 | Fair |
| US 87 over Martin Creek | 1929 | 3,118 | Fair |
| US 87 over Hog Branch | 1948 | 3,118 | Fair |
All bridges nearby: Mason County, TX bridge conditions · every bridge in Mason County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.