S-163/summers DR over Unknown Creek
Good Condition15 years old750 vehicles/day
Location
| State | South Carolina |
| County | Dorchester |
| Location | 10.0 Mi SW Summerville |
| Carries | S-163/summers DR |
| Crosses | Unknown Creek |
| Coordinates | 32.90862, -80.31015 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 100.1 sq m |
| Main Spans | 1 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 750 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000001700 |