Dixie Ranch Rd. over I-12
St. Tammany Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Dixie Ranch Rd. over I-12 in St. Tammany Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1972, making it 53 years old at the 2025 inventory.
- It carries about 4,450 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 18 of the 361 inventoried bridges in St. Tammany Parish rated poor (5.0%); 18 (5.0%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated February 2024, on a 12-month routine inspection cycle.
- 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 → (30.32392, -89.8572)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 2 | 2 | Critical condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 321 ft |
| Location | 4.2 M E of La 434 |
| NBI structure number | 625204540425531 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in St. Tammany Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over East Pearl River | 1966 | 87,741 | Fair |
| I0010 over La 433 | 1966 | 82,860 | Fair |
| I0010 over Canal | 1966 | 82,860 | Fair |
| I0012 over La 59 | 1976 | 80,162 | Good |
| I0012 over Ponchatolawa Creek | 1976 | 79,960 | Fair |
| I0012 over Tchefuncte River | 1975 | 79,563 | Fair |
All bridges nearby: St. Tammany Parish, LA bridge conditions · every bridge in St. Tammany Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.