Low clearance bridges on I-78
30 spots where I-78 has less than 16 ft of clearance, in the order you drive them from west to east. The lowest is 14 ft 4 in in New Jersey, 3.7 mi East of I-287 Junction. 20 are under 15 ft.
Posted signs and your permit come first. These are the clearances states reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.
Pennsylvania · 2 under 16 ft
New Jersey · 28 under 16 ft
| Clearance | Where | County |
|---|---|---|
| 15 ft 10 in | Under Mechlin Corner Road · 4.18 mi West of RT 31 · Map | Hunterdon County |
| 15 ft 9 in | Under NJ 31 SB · At NJ 31 Interchange · Map | Hunterdon County |
| 15 ft 9 in | Under Cokesbury Road · 3 mi East of RT 31 · Map | Hunterdon County |
| 15 ft 8 in | Under Cedar Road · 0.70 mi E of I-78 Exit 24 · Map | Hunterdon County |
| 15 ft 10 in | Under Bunn Road · 1.2 mi West of I-287 · Map | Somerset County |
| 15 ft 1 in | Under Somerville Road · 2.4 mi East of I-287 · Map | Somerset County |
| 14 ft 4 in | Under Martinsville Road SB · 3.7 mi East of I-287 Junction · Map | Somerset County |
| 14 ft 8 in | Under Dead River Road · 1.24 mi W of I-78 Exit 36 · Map | Somerset County |
| 14 ft 9 in | Under King George Road · 6.52 mi East of I-287 Junction · Map | Somerset County |
| 14 ft 6 in | Under Mountain Avenue · 0.46 mi E of I-78 Exit 36 · Map | Somerset County |
| 14 ft 6 in | Under Valley View Road · 9.5 mi East of I-287 · Map | Somerset County |
| 14 ft 7 in | Under County Road 531(HILLCR. RD) · 3.59 mi E of I-78 Ext 36 · Map | Somerset County |
| 14 ft 11 in | Under County Road 577 · 0.74 mi E of 78-24 Junction · Map | Union County |
| 14 ft 6 in | Under Burnet Ave(County Road 633) · 1.0 mi E of I-78 & NJ124 Junction · Map | Union County |
| 14 ft 6 in | Under Exit Ramp to GSP · At GSP Interchange NO.142 · Map | Union County |
| 14 ft 9 in | Under Winans Avenue · 0.9 mi East of GSP Junction · Map | Union County |
| 14 ft 6 in | Under Lyons Avenue (County Road 602) · 1.5 mi E of I-78 & GSP Junction · Map | Essex County |
| 14 ft 7 in | Under Wainwright Street · 1.74 mi West of NJ 27 · Map | Essex County |
| 14 ft 11 in | Under Leslie Street · 1.7 mi East of GSP · Map | Essex County |
| 15 ft 1 in | Under Hobson Street · 1.8 Miles East of GSP · Map | Essex County |
| 14 ft 6 in | Under Nye Avenue · 1.95 mi E of GSP Exit 142 · Map | Essex County |
| 14 ft 11 in | Under Bergen Street · 2.6MILES East of G.S.Pkwy · Map | Essex County |
| 14 ft 9 in | Under Ramp NW · At Interch 56 Clinton Avenue · Map | Essex County |
| 14 ft 6 in | Over Ramp NE · 2.3 mi W of Njtpk Exit 14 · Map | Essex County |
| 15 ft 3 in | Under NJTK INT14 Ext-Alt · 1.2 mi N Bound Creek · Map | Essex County |
| 15 ft 1 in | Under I-78 Ramp 4 · At I-78 & US 1 & 9 Junction · Map | Essex County |
| 15 ft 7 in | Under Njtpk Hce Ramp Noh · I-Sec. Njtpk & Hud. Co. Ext. · Map | Essex County |
| 14 ft 9 in | Over Coles Street & Conrail · .1 mi SW Holland Tunnel · Map | Hudson County |