Rockridge Road over Pony Creek
Polk County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rockridge Road over Pony Creek in Polk County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2012, making it 13 years old at the 2025 inventory.
- It carries about 125 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 199 of the 359 inventoried bridges in Polk County rated good (55.4%); 0 (0.0%) are rated poor.
- 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 → (28.31103, -81.89177)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 69 ft |
| Location | 6.6MI N of Dean Still Rd |
| NBI structure number | 164543 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Polk County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-4 (SR-400) over Winston Drain | 1999 | 127,000 | Good |
| I-4 (SR-400) over Winston Creek | 1999 | 127,000 | Good |
| I-4 (SR-400) over Lake Gibson Drain Canal | 1961 | 104,500 | Fair |
| US-27 (SR-25) over I-4 (SR-400) | 2004 | 72,576 | Good |
| US-27 (SR-25) over Black Hills Canal | 1965 | 56,000 | Fair |
| US-27 (SR-25) over US-17 (SR-600) | 2000 | 56,000 | Good |
All bridges nearby: Polk County, FL bridge conditions · every bridge in Polk County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.