Hollybrook Rd over Mud Slough
East Carroll Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hollybrook Rd over Mud Slough in East Carroll Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1987, making it 38 years old at the 2025 inventory.
- It carries about 160 vehicles a day (traffic count year 1973).
- Its listed owner is the county highway agency.
- It is one of 28 of the 55 inventoried bridges in East Carroll Parish rated fair (50.9%); 9 (16.4%) 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 → (32.75776, -91.26706)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 76 ft |
| Location | 0.2 Mi East of La 134 |
| NBI structure number | 051832453911591 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in East Carroll Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US0065 over Baxter Bayou | 2003 | 4,507 | Good |
| US0065 over Otter Bayou | 1985 | 3,046 | Good |
| US0065 over Wild Cat Bayou | 1985 | 2,671 | Fair |
| US0065 over Creek | 1931 | 2,671 | Fair |
| US0065 over Creek | 1931 | 2,671 | Fair |
| LA0002 over Bayou Macon | 1959 | 1,232 | Poor |
All bridges nearby: East Carroll Parish, LA bridge conditions · every bridge in East Carroll Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.