The northbound high-speed toll lanes on I-93 in Hooksett will close Tuesday and the southbound lanes close Wednesday as work begins on replacing the technology that lets E-ZPass drivers get billed without slowing down.

As of Wednesday morning, all traffic will have to go through the cash or E-ZPass gates in the toll plaza, which has a 25 mph speed limit. 

The replacement is expected to take approximately two months with an anticipated reopening prior to Memorial Day 2025.

The work, similar to what was done at the Hampton tolls from October through December, is happening because the system in Hooksett was installed in 2013 “and is nearing its life expectancy,” the Department of Transportation said in a press release.

The Open Road tolling system uses sensors, cameras and specialized software to record license plate numbers of cars driving through without having to slow down. It connects that information with E-ZPass accounts or driver information for billing. The new system will be built by the current manufacturer and will look and act the same from the point of view of drivers, the transportation department said.

New Hampshire has had tolls since 1950, when they were installed on I-95 in Hampton. Open-road tolling was first installed in the state in 2010.

Similar upgrades to open-road tolling were made at the Hampton tolls on I-95 last fall.