US90 SR10 over Alligator Creek
Washington County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US90 SR10 over Alligator Creek in Washington 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 1952, making it 73 years old at the 2025 inventory.
- It carries about 4,381 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 52 of the 99 inventoried bridges in Washington County rated fair (52.5%); 8 (8.1%) 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 August 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 → (30.77756, -85.59483)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 429 ft |
| Location | 1.7Mi. West of SR277 |
| NBI structure number | 610002 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 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 Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I10 SR8 over SR77 | 1975 | 11,500 | Fair |
| I10 SR8 over SR77 | 1975 | 11,500 | Fair |
| I10 SR8 over Choctawhatchee River | 1973 | 11,000 | Fair |
| I10 SR8 over E Choctaw River Relief | 1973 | 11,000 | Fair |
| EB I-10 SR8 over Choctawhatchee River | 1973 | 11,000 | Fair |
| I10 SR8 over E Choctaw River Relief | 1973 | 11,000 | Fair |
All bridges nearby: Washington County, FL bridge conditions · every bridge in Washington County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.