TRAFFIC ADVISORY: Hunterdon County’s 2025 Slurry Seal Program Begins 08/04/2025

UPDATE #2 (08/19): The Contractor has informed the County of a delay in the start of the micro surfacing portion of the project. They will now begin on Monday, Sept. 8, 2025, with CR-523 (Dvoor Route 12 Circle to Stockton Borough) and the Annandale area (CR-626, CR-641, and CR-633) to follow.

UPDATE #1 (08/06): Micro surfacing will begin on or about Monday, Aug. 18, 2025 on CR-523 (Dvoor Route 12 Circle to Stockton Borough). On or about Monday, Aug. 25, 2025, they will begin the Annandale area (CR-626, CR-641, and CR-633). There may be disruptions to on-street parking and traffic flow during operations.

RARITAN TWP., N.J. (Hunterdon County) — The Engineering Division of Hunterdon County is advising residents that road work on County Route 523 is scheduled to begin on or about Monday, Aug. 4.

The County project consists of micro surfacing, an industrial seal coating treatment designed to extend the life of the road. For Raritan Township, County Route 523 is planned to have work done from Dvoor Route 12 Circle to Stockton Borough.

Roads in Clinton, Delaware, and West Amwell Townships, along with Stockton Borough will be affected during the construction period. Preservation will begin on or about Aug. 4, and micro surfacing operations will begin on or about Aug. 18. Additional county roads impacted include:

• County Route 641 – County Route 626 to High Bridge Borough;
• County Route 626 – Overpass to I-78; and
• County Route 633 – Whole Length.

“The County has taken advantage of this low-cost maintenance technique annually since 2021 with good success,” a Hunterdon County spokesperson said in a statement via email. “On all preservation streets, cracks will be sealed, and asphalt will be patched as needed ahead of [the] micro surface process.”

Residents and commuters may experience delays in addition to on-street parking and traffic flow during operations. Drive safely through work zones, follow the directions and posted detours by traffic control personnel, allocate extra travel time and plan to use alternate routes.

To learn more about this project, visit the Hunterdon County Road Construction page at: https://www.co.hunterdon.nj.us/1408/Road-Construction. For more information about County Bridge projects, visit: https://www.co.hunterdon.nj.us/1411/Bridge-Construction.

Inquiries regarding the project shall be directed to the Hunterdon County Department of Public Works' Division of Roads and Bridges at: (908) 788-1178, via email: This email address is being protected from spambots. You need JavaScript enabled to view it.; or visit: https://www.co.hunterdon.nj.us/683/Public-Works.

About Hunterdon County:

Established Mar. 11, 1714, and named after New Jersey colonial governor Robert Hunter, FRS, the County of Hunterdon is home to 26 individual municipalities and covers 437 square miles of the Garden State. The county is situated within the rolling farmlands of the Delaware River Valley, 60 miles from Philadelphia and New York City with a diverse population, ranging from the skilled workers of modern technology to artists and farm workers. Rich in history, lakes, woodlands, recreational, and cultural activities, the county has numerous quiet and secluded roads that make hiking and bicycling a new adventure worth exploring for residents and commuters alike. To learn more, visit: https://www.co.hunterdon.nj.us/.

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