Sand Pine Road over Unknown Creek
Clay County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sand Pine Road over Unknown Creek in Clay County, Florida, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2020, making it 5 years old at the 2025 inventory.
- It carries about 41 vehicles a day (traffic count year 2024).
- It is one of 44 of the 90 inventoried bridges in Clay County rated fair (48.9%); 3 (3.3%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: substructure 9 to 8, superstructure 5 to 6.
- Its most recent inspection on record is dated October 2024, 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 → (29.83953, -81.86589)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 5 | 6 | Satisfactory condition |
| Substructure | 9 | 8 | Very good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 101 ft |
| Location | 0.9 Mi. W. of E. Boundary |
| NBI structure number | 710155 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Clay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-17 (SR-15) over Doctors Inlet | 1971 | 58,000 | Fair |
| US-17 (SR-15) over Johnson Slough | 1967 | 51,000 | Fair |
| SR-21 over Grog Branch | 1986 | 36,500 | Fair |
| SR-21 over Black Creek | 2010 | 36,500 | Good |
| CR 220 over Swimming Pen Creek | 1996 | 35,000 | Good |
| CR 220 over Grog Branch | 1959 | 34,500 | Fair |
All bridges nearby: Clay County, FL bridge conditions · every bridge in Clay County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.