CR 905A over Steam Boat Creek
Monroe County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 905A over Steam Boat Creek in Monroe County, Florida, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 3,182 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 61 of the 98 inventoried bridges in Monroe County rated fair (62.2%); 5 (5.1%) 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 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 → (25.28378, -80.33025)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 315 ft |
| Location | 1.6 Miles N of CR 905 |
| NBI structure number | 904980 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| 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 Monroe County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 1 (SR 5) over Rockland Channel | 1979 | 47,000 | Good |
| US 1 (SR 5) over Salt Run | 1992 | 38,500 | Fair |
| US 1 (SR 5) over Naval Base Blvd | 1988 | 27,500 | Good |
| US 1 (SR 5) over Jewfish Creek | 2008 | 26,500 | Good |
| US 1 (NB & SB) over Manatee Creek | 2008 | 26,500 | Fair |
| US-1 (SR-5) over Vaca Cut | 1982 | 25,000 | Fair |
All bridges nearby: Monroe County, FL bridge conditions · every bridge in Monroe County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.