Sl 323 over Black Fork Crk Br
Smith County, Texas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sl 323 over Black Fork Crk Br in Smith County, Texas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1956 and reconstructed in 1970, making it 69 years old at the 2025 inventory.
- It carries about 17,235 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 207 of the 428 inventoried bridges in Smith County rated good (48.4%); 3 (0.7%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (32.39065, -95.29294)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 21 ft |
| Location | 0.4 Mi W of FM 14 |
| NBI structure number | 102120207501001 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Smith County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 69 over West Mud Creek | 1956 | 46,059 | Fair |
| Ih 20 over Rattlesnake Creek | 1961 | 38,914 | Fair |
| Sl 323 over W Mud CR Tr | 1956 | 38,634 | Fair |
| Ih 20 over Allen Branch Trib | 1961 | 38,112 | Fair |
| Ih 20 over Allen Branch | 1961 | 38,112 | Fair |
| Sl 323 over Indian Cr | 1956 | 36,533 | Fair |
All bridges nearby: Smith County, TX bridge conditions · every bridge in Smith County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.