SR-100 over Swift Creek
Union County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR-100 over Swift Creek in Union 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 1955, making it 70 years old at the 2025 inventory.
- It carries about 3,400 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 22 of the 28 inventoried bridges in Union County rated fair (78.6%); 0 (0.0%) 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 → (30.05798, -82.41915)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete slab |
| Length | about 200 ft |
| Location | 0.2 MI. East of CR-231A |
| NBI structure number | 390004 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Union County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR-121 over Turkey Creek | 1970 | 6,400 | Fair |
| SR-100 over New River | 1930 | 6,300 | Fair |
| SR-100 over Richard Creek | 1955 | 6,300 | Fair |
| SR-121 over Csxrr (removed) | 1954 | 6,100 | Fair |
| SR-121 over Dekles Mill Creek | 1970 | 6,100 | Fair |
| SR-121 over Five Mile Creek | 1970 | 6,100 | Fair |
All bridges nearby: Union County, FL bridge conditions · every bridge in Union County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.