LA0159 over Thorny Branch
Webster Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA0159 over Thorny Branch in Webster Parish, Louisiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 1,492 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 41 of the 194 inventoried bridges in Webster Parish rated good (21.1%); 48 (24.7%) 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 → (32.9364, -93.2943)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 240 ft |
| Location | 0.41 Mi S of La 159 |
| NBI structure number | 046000000040424 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Webster Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0020 over Cooley Branch | 1960 | 44,225 | Fair |
| I0020 over Cooley Branch | 1960 | 44,225 | Good |
| I0020 over Kcs R/R | 1960 | 41,386 | Fair |
| I0020 over US371 @ Dixie Inn | 1960 | 38,625 | Fair |
| I0020 over Dorcheat Bayou Rel | 1960 | 38,625 | Good |
| I0020 over Dorcheat Bayou | 1960 | 38,625 | Fair |
All bridges nearby: Webster Parish, LA bridge conditions · every bridge in Webster Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.