Route 31 ramp to I-78 eastbound in Clinton to close for one week starting tonight
CLINTON, N.J. (Hunterdon County) — The Route 31 southbound ramp to I-78 eastbound is scheduled to close Friday night for a week-long detour as work continues on the Route 31, I-78/Route 22 to Grayrock Road pavement reconstruction project in Hunterdon County.
The closure will begin at 8 p.m. Friday, Aug. 15, and is scheduled to last until 11:30 p.m. Friday, Aug. 22, according to the New Jersey Department of Transportation. Crews will perform a full-depth reconstruction of the ramp.
Motorists on Route 31 southbound who need to access I-78 eastbound can follow one of two detour routes:
- Exit toward Annandale/U-turn after Finnagel’s Restaurant, turn right onto Beaver Avenue/County Route 626, then turn right to take the ramp to I-78/Route 22 eastbound.
- Continue on Route 31 southbound, take the jughandle for U-turns and left turns after the Regional Road/North Hunterdon High School traffic signal, turn left onto Route 31 northbound, and take the ramp to I-78 eastbound.
The $24.8 million federally funded project will replace deteriorated concrete pavement with full-depth asphalt reconstruction, realign the intersection of Center Street eastbound and Route 31 southbound to improve sight distance, extend the acceleration lane from I-78/Route 22 westbound to Route 31 northbound, and complete drainage, guiderail, lighting, sign, and bridge deck repairs. Completion is expected by fall 2026.
Timing may change due to weather or other factors. For real-time updates, visit www.511nj.org.
