Claremont Route 12 Construction Resumes, Drivers Should Expect Lane Closures

The Route 12 and North Street Improvements Project kicked back into gear Monday, March 30, bringing lane closures and alternating one-way traffic to one of Claremont's most traveled commercial corridors.

Work opened on NH Route 12 with excavation and paving activity, triggering daytime traffic control operations that the city warned would affect commuters, school buses, delivery vehicles and businesses that depend on predictable movement through the area. The city asked drivers to expect disruptions and to plan alternate routes where possible.

The project targets long-standing problems along this corridor: aging utility infrastructure and chronic drainage deficiencies that have contributed to maintenance burdens, pothole issues and periodic flooding in recent years. The investment is part of a staged, multi-year effort to modernize the Route 12 and North Street intersection and the surrounding roadway network, with planned upgrades to drainage systems, utilities and overall traffic flow.

Over the next four to eight weeks, active construction windows will bring periodic lane restrictions and potential temporary detours. Businesses along the corridor may need to coordinate deliveries around predicted closures, and property owners with driveway access inside the work zone should anticipate short delays and intermittent crew activity.

Claremont's Department of Public Works is the primary source for scheduling details as the season progresses. The city's project page will carry updates and includes a public comment link for residents with concerns or questions about specific work windows. The city's stated intent is to minimize long-term disruption while completing infrastructure upgrades it describes as essential to the health of this downtown-adjacent spine.