New Hampshire
Welcome to New Hampshire
The East Coast Greenway in New Hampshire—known as the New Hampshire Seacoast Greenway—traces the state’s Atlantic coastline. Travelers enter from the north via a separated walkway over the Memorial Bridge, then follow an interim 20-mile coastal route with sweeping ocean views. An alternate route through Portsmouth connects to eight miles of completed rail trail before rejoining the route and continuing south to Massachusetts. When complete, the 17-mile New Hampshire Seacoast Greenway will largely follow the former Boston & Maine Railroad corridor from Seabrook to Portsmouth. The first eight-mile off-road segment opened in September 2024, putting New Hampshire more than halfway to completion. The full route — featuring 16.5 miles of rail trail and additional on- and off-road connections through Portsmouth — is expected to be completed within the next decade.
Explore the Greenway & Future Trails
Choose a tab below to explore the Greenway route today and the progress moving it forward.
Designated Trails
Mileage counts reflect the portion of each trail that is part of East Coast Greenway.
- New Hampshire Seacoast Greenway Phase 1A, Portsmouth-North Hampton; 8 mi
- Portsmouth Sidepath: 1.1 m
Where We’re Focusing
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New Hampshire Seacoast Greenway (Phase 1A)
The opening of the 8-mile phase of the New Hampshire Seacoast Greenway connecting Portsmouth to North Hampton brings important opportunities to maintain, monitor, track progress, promote and provide community connections to the constructed trail.Learn More -
New Hampshire Seacoast Greenway Expansions
The 1.6-mile Hampton to North Hampton portion of the NHSG should complete construction by 2026. A 2024 RAISE grant will fund part of the feasibility and design for the trail’s Hampton Falls Marsh segment, a critical and very scenic link in the NHSG.Learn More
Progress Update
Short but mighty, the Greenway in New Hampshire has made notable progress and is poised for even more over the next decade. In 2024, Portsmouth completed 1.1 miles of sidepath connections, while 8 miles of the New Hampshire Seacoast Greenway opened as Phase 1A. Construction is underway on a 1.6-mile connection into Hampton. Planning is also advancing: Hampton Falls Marsh received a 2024 RAISE grant to move design and engineering forward, and the Seabrook segment is programmed in the NHDOT Ten-Year Plan.
Suggested Itineraries
New Hampshire’s interim Greenway route hugs the coast with sweeping Atlantic views. An 8-mile segment opened in 2024, with 1.6 more miles on the way by 2026 and full trail completion expected within the next decade.
Trail Experience
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