Structure 890151 · Martin County, FL
Carries Us-1 (sr-5) SB over St. Lucie River / Sr-707, 1 Mile South Of Sr-707.
4,487 ft end to end, longest span 260 ft: about 12 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a segmental box-girder bridge.
| State | Florida |
| County | Martin |
| Location | 1 Mile South Of Sr-707 |
| Carries | Us-1 (sr-5) SB |
| Crosses | St. Lucie River / Sr-707 |
| Coordinates | 27.20500, -80.25877 |
| Material | Prestressed Concrete Continuous |
| Design | Segmental Box Girder |
| Total Length | 4486.9 ft (1367.6 m) |
| Max Span | 259.8 ft (79.2 m) |
| Deck Width | 61.0 ft (18.6 m) |
| Deck Area | 25437.4 sq m |
| Main Spans | 21 |
| Year Built | 1997 |
| Avg Daily Traffic | 29,148 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 2 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 890151 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.