I-89 Ramp to I-91 North to Close for Paving
The ramp will be inaccessible to drivers for two days as construction crews perform essential bridge work.
Updated on Oct. 20, 2026 in Construction
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The New Hampshire Department of Transportation is closing the ramp from northbound Interstate 89 to northbound Interstate 91 on Wednesday and Thursday. The closure is required for milling and paving work related to the $43 million bridge replacement project.
Why it matters
This construction is part of a larger effort to replace two 1966 bridge structures over the Connecticut River with a single, modern bridge. The project aims to reduce traffic congestion and improve safety by eliminating short merge lanes for the 41,000 vehicles that use the route daily.
The ramp closure is scheduled daily from 8 a.m. to 6 p.m. This ongoing $43 million infrastructure project serves a high-traffic corridor that sees approximately 41,000 vehicles per day.
The players
New Hampshire Department of Transportation
This state agency is responsible for the design, construction, and maintenance of New Hampshire's multi-modal transportation systems.
R.S. Audley
Based in Bow, New Hampshire, this company is a civil engineering and construction firm specializing in large-scale bridge and highway infrastructure projects.
The details
During the closure, drivers traveling to I-91 north must continue on I-89 north to Exit 1, where they will turn around to take I-89 south and access the ramp. R.S. Audley of Bow is managing the construction, which involves consolidating two side-by-side bridges over the Connecticut River into one wider structure.
Timeline
The ramp will be closed between 8 a.m. and 6 p.m. on Wednesday, October 21.
The ramp will be closed between 8 a.m. and 6 p.m. on Thursday, October 22.
Project construction began in 2020.
The full bridge replacement project is expected to reach completion in November 2026.
Market Landscape
This project follows the pattern set by the Federal Highway Administration Bridge Replacement and Rehabilitation Program to modernize aging bridge infrastructure. It positions state infrastructure initiatives to handle increased traffic demands by replacing structures that reached their design limit decades ago.
Commuters should anticipate travel delays and plan for the additional time required to navigate the detour at Exit 1. The paving work is necessary to ensure road surface quality as the long-term bridge project nears its final completion date.
The takeaway
Large-scale infrastructure projects often require temporary detours that can disrupt daily commutes. Drivers are encouraged to check official transit portals to plan their routes around construction windows to avoid peak congestion.
What happens next
The overall bridge replacement project is scheduled to reach final completion in November 2026.
Further reading
For more information on infrastructure projects, visit New Hampshire Construction.
More information
For real-time construction alerts, visit the regional travel portal.
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