12 bridges with vertical clearance data on SR-20 in South Carolina. Lowest: 135.8ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 135.8ft | Sc 20 | Co. Rd. (L-5084 Mp 0.20) | Piedmont | 1952 | Map |
| 148.3ft | S-26-20 | Intracoastal Waterway | 10.5 Mi S Of Conway | 1935 | Map |
| 149.9ft | Sc 20 | S.C. 252 | 5.0 Mi Sw Of Honea Path | 1961 | Map |
| 175.9ft | S-20-20 | I-77 | 8Mi Ne Winnsboro | 1980 | Map |
| 199.1ft | S-10-20/Main Rd | Stono River | 9.5 Mi W Charleston | 2004 | Map |
| 218.2ft | Sc 20 | P And N Rr (No. 2) | 4.9 Mi N Of Belton | 1938 | Map |
| 220.1ft | Sc 20 | P And N Rr (No. 1) | 1.3 Mi N Of Belton | 1940 | Map |
| 225.1ft | Sc 20 | Southern Rr. | 8 Mi Sw Of Greenville | 1950 | Map |
| 226.7ft | Sc 20 | Scl Rr | 8 Mi Sw Of Greenville | 1950 | Map |
| 232.9ft | S-13-20 | Csx Railroad | 9.5 Mi Se Chesterfield | 1999 | Map |
| 242.5ft | S-10-20/Main Rd | Rr Csxt & L-1376 &S-1377 | 9.8 Mi W Charleston | 1980 | Map |
| 1000.0ft | S-20-20 | Hogfork Branch | 1.5 Mi E Of I77 Exit 46 | 2024 | Map |