11 bridges with vertical clearance data on SR-66 in Oklahoma. Lowest: 162.1ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 162.1ft | S.H. 66 Eb | S.H. 74 Under | 5.4 Mi E Canadian C/L | 1973 | Map |
| 162.1ft | S.H. 66 Wb | S.H. 74 Under | 5.4 Mi E Canadian C/L | 1973 | Map |
| 165.0ft | S.H. 66 Sb | Bird Creek. & Rd. Under | 3.3 N Of Jct. I-44 | 2012 | Map |
| 168.3ft | S.H. 66 Nb | Bird Creek & Rd. Under | 3.3 Mi N Jct I-44 | 1956 | Map |
| 169.9ft | S.H. 66 | I-35 Under | 3.2 Mi N Of Turnpike | 1986 | Map |
| 169.9ft | S.H. 66 Wb | Turner Tp (I-44) Under | .1E Of Turnpike Gate | 2024 | Map |
| 170.9ft | S.H. 66 | S.H. 66 Ramp W-N Under | 5.5 Mi E Canadian C/L | 1973 | Map |
| 170.9ft | S.H. 66 | I-44 (Turner Tp) Under | 9.6Ne Jct S.H. 48 | 2011 | Map |
| 230.0ft | S.H. 66 | Slwc R.R. Under | Sh 66; 0.9 Mi E Jct Sh 18 | 1926 | Map |
| 238.8ft | S.H. 66 | Slwc R.R. Under | 13.7 Mi E Of Jct I-35 | 1990 | Map |
| 250.0ft | S.H. 66 | Slwc R.R. Under | 18.5 Mi Ne Jct Sh-48 | 1999 | Map |