US331 SR187 over Big Swamp Creek
Walton County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US331 SR187 over Big Swamp Creek in Walton County, Florida, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 3,700 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 137 of the 232 inventoried bridges in Walton County rated fair (59.1%); 14 (6.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated December 2023, on a 24-month routine inspection cycle.
- 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 → (30.82261, -86.21854)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 169 ft |
| Location | 8.0 mi. North of US90 |
| NBI structure number | 600111 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Walton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR83 US331 over Bay Branch | 2018 | 31,500 | Good |
| I10 SR8 over Kiser Branch | 1974 | 27,677 | Fair |
| I10 SR8 over Bruce Creek | 1974 | 24,720 | Fair |
| US331 SR83 over Tributary #1 | 2007 | 22,500 | Good |
| SR20 over Lafayette Creek | 1968 | 21,000 | Fair |
| US331 SR83 over Ramsey Branch | 1996 | 14,500 | Fair |
All bridges nearby: Walton County, FL bridge conditions · every bridge in Walton County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.