CR 120 over N Prong St Marys River
Baker County, Florida · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 120 over N Prong St Marys River in Baker County, Florida, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 151 vehicles a day (traffic count year 2019).
- Its listed owner is the county highway agency.
- It is one of 9 of the 92 inventoried bridges in Baker County rated poor (9.8%); 9 (9.8%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (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.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (30.46389, -82.20611)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 3 | 3 | Serious condition |
Bridge details
| Structure | Concrete slab |
| Length | about 174 ft |
| Location | 1.4 Mi East of CR 127 |
| NBI structure number | 274135 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated 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.