20 bridges with vertical clearance data on SR-21 in New Jersey. Lowest: 141.7ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 141.7ft | Nj 21 Sb (Viaduct) | Nj 21 Nb | 1.2Mi N Of Rt21&280 Jct | 1953 | Map |
| 144.4ft | Nj 21 Sb (Viaduct) | Nj 21 Nb | 0.8 Mi S Of Rt7&21 Jct | 1964 | Map |
| 145.7ft | Ramp L | Nj Route 21 | 3.82 Mi N Of 280-21 Jct | 1958 | Map |
| 145.7ft | Ramp F From Nj 21 | Ramp M From River Road | 0.2 Mi Nw Of 3-21 Jct | 1961 | Map |
| 145.7ft | Route Nj 21 | Passaic St.&Weasel Brook | 2.8 Mi N Of 3-21 Jct | 1972 | Map |
| 146.7ft | Nj Rt 21 & Ramp B | Brook Ave,River Dr Nb | 1.1 Mi N Of 3-21 Jct | 1967 | Map |
| 147.6ft | Nj Route 21&Ramp F | River Drive (Cr 624 Ii) | 2.0 Mi N Of Nj 3 | 1967 | Map |
| 149.3ft | Rt Nj 21 | Rutgers-Rt506 & Main St | 3 Mi N Of Rts 280-21 Jct | 1958 | Map |
| 150.9ft | Nj 21 Sb | Chester Avenue | 1.42 Mi N Of I-280 | 1955 | Map |
| 150.9ft | Nj Route 21 | Washington Place | 2.88 Mi N Of Nj 3 | 1972 | Map |
| 150.9ft | Nj Route 21 | Jefferson St | 2.95 Mi N Of Nj 3 | 1972 | Map |
| 151.6ft | Route Nj 21 | Park Ave (Cr 646) | 1.3 Mi S Of Nj 3 | 1959 | Map |
| 152.6ft | Route Nj21 &Ramp N | Hope Avenue | 3.08 Mi N Of Nj 3 | 1972 | Map |
| 154.2ft | Nj 21 Nb | Chester Avenue | 1.42 Mi N Of I-280 | 1954 | Map |
| 154.2ft | Route Nj 21 | Monroe St & Weasel Brook | 0.12 Mi. N. Of Madison St | 1999 | Map |
| 155.8ft | Nj 21 | Dayton Avenue | 1.6 Mi S Of Us 46 Jct | 2000 | Map |
| 162.4ft | Nj Route 21 | Madison St | 3.04 Mi N Of Nj 3 | 1972 | Map |
| 164.0ft | Nj 21 | Ackerman Ave. | Exit 13 Of Nj 21 | 2000 | Map |
| 167.0ft | Nj21 (Newark Vdct) | I78, Us1&9, Rmps, Rrs | 1.1Mi W Of I-78&Us1&9 Jct | 2003 | Map |
| 220.1ft | Nj 21 Ramp B | Njt And Myrtle Avenue | 0.4 Mi Nw Of 3-21 Jct | 1961 | Map |