21 bridges with vertical clearance data on US-20 in Illinois. Lowest: 144.0ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 144.0ft | Us 20 Wb | Us 20 Villa St | 1 M E Kane Co | 1961 | Map |
| 146.7ft | Us 20 Wb (Lake St) | Il 64 (North Ave) | 2 M N Us 45 | 1931 | Map |
| 146.7ft | Us 20 W B | Ill 251 (11Th St) | S Edge Rockford | 1960 | Map |
| 147.6ft | Us 20 E B | Ill 251 (11Th St) | S Edge Rockford | 1960 | Map |
| 149.9ft | Us 20 Wb | Menominee Rd | 3.2 Mi W Jct Ill 84 | 1968 | Map |
| 151.6ft | Us 20 Wb | I-90 | .13 Mi E Wheeler Rd | 1958 | Map |
| 154.2ft | Us 20 | Mclean Blvd | 1.3 M W Of Il 31 | 2015 | Map |
| 161.7ft | Us 20 Eb | I-90 | .11 Mi E Wheeler Rd | 1964 | Map |
| 161.7ft | Us20B West Bound L | Us20 Freeport Bypass | .3 Mi E Springfld Rd | 1987 | Map |
| 162.4ft | Us 20 (Lake St) | Il 59 (Sutton Rd) | 0.8 M S Of Il 19 | 1990 | Map |
| 162.4ft | Us 20 | Il 390 Elgin-Ohare | East Of Barrington R | 1992 | Map |
| 162.4ft | Us 20 Eb Freprt By | Il 75 | Ne Of Freeport | 1986 | Map |
| 164.0ft | Us 20 Wb | Ill Rt 26 | 1 Mi N Freeport | 1986 | Map |
| 173.2ft | Us 20 E B | Ill 2 | 1 Mi S Of Rockford | 2019 | Map |
| 175.9ft | Us 20 | Miss River, Hwy, Rr | In Dubuque | 1943 | Map |
| 179.1ft | Us 20 Eb | Ill Rt 26 | 1 Mi N Freeport | 1986 | Map |
| 227.4ft | Us 20 Wb | Cunningham Rd. | 1 Mi E Meridian Rd | 1964 | Map |
| 227.4ft | Us 20 Eb | Cunningham Rd. | 1 Mi E Meridian Rd | 1964 | Map |
| 264.1ft | Us 20 Eb | S Appleton Rd | Sw Edge Belvidere | 1966 | Map |
| 267.4ft | Us 20 Wb | S Appleton Rd | Sw Edge Belvidere | 1966 | Map |
| 1072.5ft | Us 20 | W Br Du Page River | 0.18 M E Greenbrook | 2017 | Map |