Bridge conditions in Polk County, Florida
359 inventoried bridges · 0 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Polk County is one of the counties with a clean sheet: 359 bridges on the federal inventory and not one rated poor. 160 carry a fair rating, which means wear worth watching but no structural deficiency.
- 0 of the 359 bridges in Polk County, Florida, are rated in poor condition (0.0%) in the 2025 National Bridge Inventory, as of .
- 199 bridges (55.4%) are rated good and 160 (44.6%) fair.
- The median Polk County bridge was built in 1984.
Good 55.4% · Fair 44.6% · Poor 0.0% of 359 bridges
Bridges rated poor
No bridges in this county carry a poor rating in the current inventory.
Busiest bridges in the 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 |
| I-4 WB (SR-400) over US-98 (SR-35) | 2004 | 54,000 | Good |
| I-4 EB (SR-400) over US-98 (SR-35) | 2004 | 54,000 | Good |
| I-4 WB (SR-400) over Cr-582 (socrum Loop Rd) | 1961 | 52,250 | Fair |
| I-4 EB (SR-400) over Cr-582 (socrum Loop Rd) | 1961 | 51,750 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Florida: Florida bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.