Miller Rd over Petticoat Bayou
Ouachita Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Miller Rd over Petticoat Bayou in Ouachita Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1981, making it 44 years old at the 2025 inventory.
- It carries about 330 vehicles a day (traffic count year 1980).
- Its listed owner is the county highway agency.
- It is one of 42 of the 331 inventoried bridges in Ouachita Parish rated poor (12.7%); 42 (12.7%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (32.38753, -92.04013)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete slab |
| Length | about 95 ft |
| Location | Log Mile 0.35 Rt. 318 |
| NBI structure number | 053732232920231 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Ouachita Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 18TH St at Desiard over Drainage Canal | 1996 | 100,000 | Good |
| I0020 over Black Bayou | 1965 | 84,225 | Fair |
| I0020 over City St/icg Rr/ouachita | 1965 | 84,225 | Fair |
| I0020 over Youngs Bayou | 1965 | 84,225 | Fair |
| I0020 over US 165 | 1965 | 84,225 | Fair |
| I0020 over E Youngs Bayou | 1965 | 84,225 | Fair |
All bridges nearby: Ouachita Parish, LA bridge conditions · every bridge in Ouachita Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.