Bridge conditions in St. Lucie County, Florida
150 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
4 of the 150 bridges the federal inventory lists in St. Lucie County are rated poor; the rest split 109 good and 37 fair.
- 4 of the 150 bridges in St. Lucie County, Florida, are rated in poor condition (2.7%) in the 2025 National Bridge Inventory, as of .
- 109 bridges (72.7%) are rated good and 37 (24.7%) fair.
- The median St. Lucie County bridge was built in 1982.
- The busiest poor-rated bridge is Sr-a1a over Intracoastal Waterway (built 1963), carrying about 7,100 vehicles a day.
Good 72.7% · Fair 24.7% · Poor 2.7% of 150 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sr-a1a over Intracoastal Waterway | 1963 | 7,100 | Poor |
| SR-A1A (Ocean Dr.) over Big Mud Creek | 1965 | 3,800 | Poor |
| SR-A1A (Ocean Dr.) over Blind Creek | 1965 | 3,800 | Poor |
| CR605 Old Dixie Hw over Taylor Creek | 1962 | – | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Port St. Lucie Bld over SR-91 (Florida Turnpike) | 1995 | 50,000 | Good |
| SB I-95 (SR-9) over Gatlin Blvd | 1982 | 49,750 | Fair |
| NB I-95 (SR-9) over Gatlin Blvd | 1982 | 49,750 | Good |
| SB I-95 (SR-9) over SW Cadima St & C24 Canal | 1982 | 49,750 | Good |
| NB I-95 (SR-9) over Galiano Rd & C-24 Canal | 1982 | 49,750 | Good |
| Crosstown Parkway over St Lucie River | 2019 | 47,000 | Good |
| SR91 N/S Tpk 147.7 over Drainage Ditch | 1956 | 46,900 | Good |
| SR91 N/S Tpk 148.2 over Drainage Canal | 1956 | 46,900 | Good |
| SR91 N/S Tpk 139.7 over Drainage Ditch | 1957 | 46,000 | Fair |
| St Lucie West Blvd over SR-9 (I-95) | 1989 | 43,500 | 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.