Road 4 over Unknown Creek
Baker County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Road 4 over Unknown Creek in Baker County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 1 vehicles a day (traffic count year 2023).
- It is one of 25 of the 92 inventoried bridges in Baker County rated good (27.2%); 9 (9.8%) 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 April 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (30.47109, -82.31936)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel through truss |
| Length | about 41 ft |
| Location | 0.3 Miles N of Rd 26 |
| NBI structure number | 270075 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 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 Baker County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-10 (SR-8) over Prong of St.marys River | 1961 | 32,500 | Fair |
| I-10 SR-8 over Turkey Creek | 1961 | 29,000 | Fair |
| I-10 SR-8 over Hells Bay | 1961 | 27,000 | Fair |
| I-10 (SR-8) over Cypress Branch | 1962 | 25,243 | Good |
| I-10 WB SR-8 over Csxrr Removed | 1960 | 20,000 | Fair |
| I-10 EB SR-8 over SR-228 | 1960 | 20,000 | Fair |
All bridges nearby: Baker County, FL bridge conditions · every bridge in Baker County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.