Race Day Overview
The NASCAR Cup Series will descend on New Hampshire Motor Speedway in Loudon this Sunday, with the green flag scheduled for 3 p.m. Organizers anticipate more than 42,000 spectators and roughly 15,000 vehicles converging on the venue, prompting a comprehensive traffic‑management plan that will reshape the surrounding roadways for several hours.
Starting at 3:15 p.m., a series of ramp closures and lane changes will be imposed on I‑393 and I‑93, directing drivers onto alternate routes such as Stickney Avenue and Exit 15W. Route 106 will be reconfigured to accommodate the surge, with two northbound lanes and a single southbound lane stretching from I‑393 to Beck Road, plus an additional northbound lane added from Beck Road to the speedway’s South Gate.
Left‑turn movements at Mudgett Hill Road, Voted Road and Clough Hill Road will be prohibited during the event, while multiple southbound lanes will be opened on Route 106 to streamline departures from the speedway. Northbound traffic will be detoured east on Route 129, then north on Route 107, then west on Route 140 before re‑joining Route 106 in Belmont or Laconia, a pattern that will remain in effect until 9:30 p.m.
Clough Hill Road will be completely closed to all traffic, and uniformed officers will be stationed at primary exit points, signalized intersections and side streets along Route 106 to guide drivers and enforce the new restrictions. The coordinated effort involves the New Hampshire Department of Transportation, local municipalities, New Hampshire State Police, Homeland Security and Emergency Management, and the speedway itself, all working together to maintain safety and minimize disruption.
Commuters should expect significant delays and plan alternate routes, especially those traveling through the Loudon‑Concord corridor. While the traffic measures are designed to keep the event running smoothly, they underscore the challenges of hosting a major motorsport weekend in a densely populated region.