I-20 over Jacks Branch
Fair Condition52 years old30,400 vehicles/day
Location
| State | South Carolina |
| County | Darlington |
| Location | 5 Mi NE Lamar |
| Carries | I-20 |
| Crosses | Jacks Branch |
| Coordinates | 34.20537, -79.97918 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 276.9 ft (84.4 m) |
| Deck Area | 540.2 sq m |
| Main Spans | 2 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 30,400 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 4 |
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 | 000000000006460 |