Traffic & Transit
8 Month River Road Reconstruction Project Begins In Hillsborough
As a result, a portion of River Road in Hillsborough is now fully closed and will remain closed for about eight months.

HILLSBOROUGH, NJ — Construction on County Route 567 (River Road) in Hillsborough begins on Monday prompting an 8-month full road closure.
The road will be fully closed from Elm Street to about 1,000 feet North of Elm Street.
Somerset County's project includes the widening of the roadway and the construction of a large pre-cast panel retaining wall along the South Branch Raritan River designed to reduce erosion and stabilize the roadway.
Find out what's happening in Hillsboroughfor free with the latest updates from Patch.
Also included in the project are drainage structures, guide rails, and underground utility relocation.
During construction, the following detour will be in effect:
Find out what's happening in Hillsboroughfor free with the latest updates from Patch.
Southbound Detour Route:
Southbound traffic detoured off River Road CR 567 at River Road. The detour route is:
- River Road CR 567 Southbound-Pleasant Run Road to a left onto River Road Northbound
- River Road Northbound to a right onto S Branch Road Southbound
- S Branch Road Southbound to a right onto E Mountain Road Southbound
- E Mountain Road Southbound to a right onto Amwell Road Westbound
Northbound Detour Route:
Northbound traffic detoured off River Road CR 567 at Amwell Road. The detour route is:
- River Road CR 567 Northbound-Zion Road to a right onto Amwell Road Eastbound
- Amwell Road Eastbound to a left onto E Mountain Road Northbound
- E Mountain Road Northbound to a left onto S Branch Road Northbound
- S Branch Road Northbound to a left onto River Road Southbound
Sparwick Contracting, Inc. is the general contractor and was awarded an approximately $2.7 million contract by the Somerset County Board of County Commissioners in November 2023.
Click here for more information and construction updates for this project.
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