FM 421 over Lower Rocky Creek
Hardin County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM 421 over Lower Rocky Creek in Hardin 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 1979, making it 46 years old at the 2025 inventory.
- It carries about 1,711 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 56 of the 167 inventoried bridges in Hardin County rated fair (33.5%); 1 (0.6%) 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 → (30.21498, -94.28373)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 24 ft |
| Location | 5.00 Mi W of US 69 |
| NBI structure number | 201010081303031 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Hardin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 69 over Cooks Lake Rd | 1988 | 45,209 | Fair |
| US 69 over Keith Rd | 1988 | 41,276 | Fair |
| US 69 over Mitchell Rd | 1988 | 41,276 | Fair |
| US 96 over Drainage Ditch | 1948 | 27,408 | Good |
| US 96 over Walton Creek | 1949 | 24,899 | Fair |
| US 69 SB over Pine Island Bayou | 1963 | 23,403 | Fair |
All bridges nearby: Hardin County, TX bridge conditions · every bridge in Hardin County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.