6 bridges with vertical clearance data on SR-20 in Connecticut. Lowest: 145.0ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 145.0ft | Route 20 Westbound | Ssr 401 | At Windsor Locks Townline | 1961 | Map |
| 147.6ft | Route 20 Westbound | Old County Road | 2.5Mi E Of Windsor Lks Tl | 1961 | Map |
| 150.9ft | Route 20 Westbound | Hamilton Road | 1 Mi E Of Windsor Lks Tl | 1961 | Map |
| 154.9ft | Route 20 Eastbound | Old County Road | 2.5Mi E Of Windsor Lks Tl | 1961 | Map |
| 162.4ft | Route 20 Eastbound | Hamilton Road | 1 Mi East Of Wl Town Line | 1961 | Map |
| 174.2ft | Route 20 Westbound | Interstate-91 | I-91 Nb Exit 40 | 1992 | Map |