I-20 WB over Lake Swamp
Fair Condition53 years old15,200 vehicles/day
Location
| State | South Carolina |
| County | Darlington |
| Location | 3mi NE Of Lamar |
| Carries | I-20 WB |
| Crosses | Lake Swamp |
| Coordinates | 34.20581, -80.00333 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 120.1 ft (36.6 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 479.5 sq m |
| Main Spans | 4 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 15,200 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000006263 |