Structure 1793 · Charleston County, SC
Carries Sc 700/maybank HWY over Stono River & Pennys Crk, 5 Mi SW Of Charleston.
Set by its lowest-rated component: Deck and Substructure at 6 of 9.
How ratings work7,316 ft end to end, longest span 230 ft: about 20 football fields, or 1.4 miles. 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 multi-beam bridge.
| State | South Carolina |
| County | Charleston |
| Location | 5 Mi SW Of Charleston |
| Carries | Sc 700/maybank HWY |
| Crosses | Stono River & Pennys Crk |
| Coordinates | 32.75289, -80.00927 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 7316.3 ft (2,230 m) |
| Max Span | 230.0 ft (70.1 m) |
| Deck Width | 64.0 ft (19.5 m) |
| Deck Area | 43,485 sq m |
| Main Spans | 3 |
| Year Built | 2004 |
| Avg Daily Traffic | 37,300 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
| Last Inspection | July 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 | 000000000001793 |
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.