The Assabet River Rail Trail (ARRT) is a partially-completed multi-use rail trail running through the cities and towns of Marlborough, Hudson, Stow, Maynard, and Acton, Massachusetts, United States. It is a conversion of the abandoned Marlborough Branch of the Fitchburg Railroad. The right-of-way parallels the Assabet River in the trail's midsection. At the north end it veers north to the South Acton MBTA train station while the south end veers south to Marlborough. When fully completed, the end-to-end length will be 12.5 miles (20.1 km). As of June 2020, the southwest 5.1-mile (8.2 km) portion of the trail from Marlborough to Hudson and the northeast 3.4-mile (5.5 km) portion running from the South Acton MBTA station to the Maynard–Stow border are completed. No current plans exist for paving the 4.0-mile (6.4 km) gap in Stow and Hudson between the two trail ends.^[1]

History

The Marlborough Branch railroad was progressively lengthened so that it reached from the Acton station to Maynard by 1849, extended through Stow to Hudson in 1850, and reached its Marlborough terminus in 1855. Passenger service was discontinued in the reverse fashion, such that Marlborough's service ended in 1930, Hudson and Stow in 1939, and finally Maynard in 1958. The branch continued providing freight service into the 1960s. The last remaining rails and railroad ties in Acton and Maynard were removed in 2014.^[1]

In 1851 transcendentalist Henry David Thoreau, who lived in Concord, wrote in his famous journal about a trek to Boon's Pond—today known as Lake Boon—which on the return included a walk along the railroad tracks now replaced by the trail.^[2]

Status

v t e Assabet River Rail Trail
Legend
MBTA  Fitchburg Line  South Acton MBTA station Maple Street South Acton trailhead South Acton parking lot site of former railway turntable Fort Pond Brook Sylvia Street parking lot boardwalk over wetlands Cedar Swamp Meadow Marble Farm house site Acton Maynard access path Acton Street Concord Street Acton Street Maplebrook Park Summer Street Maynard Municipal Parking Lot Assabet River Florida Road site of former Maynard railroad station Route 62 (Main Street, Maynard) Sudbury Street site of Maynard train wreck, April 16, 1911 Route 117 (Great Road) Ice House Landing (water access) Maynard trailhead White Pond Road (parking and water access) Maynard Stow Assabet River National Wildlife Refuge Crow Island Airport Sudbury Road parking lot Sudbury Road Magazu Landing (water access) site of former Whitman Crossing railroad station Assabet River (proposed crossing) private property Assabet River (proposed crossing) Marlboro Road Stow Hudson proposed connection to Mass Central Rail Trail - Wayside Route 62 (Wilkins Street) Hudson trailhead / Wilkins Street parking lot Cox Street Mackin Street proposed connection to Mass Central Rail Trail - Wayside Route 62 (Main Street, Hudson) Assabet River Main Street Landing (water access) Hudson Main Street parking lot Assabet River Rail Trail caboose Vila do Porto Boulevard Route 62 (Main Street, Hudson) site of former Hudson railroad station Broad Street South Street Assabet River Route 85 (Washington Street) Washington Street parking lot Fossile access path easement Boston & Maine Railroad bridge abutments (Farmer's Bridge) Route 85 Connector Hudson Marlborough Crowley Drive parking lot Fitchburg Street Luman Fairbanks memorial Sasseville Way parking lot Fort Meadow Reservoir overlook Boston Scientific Way Ash Street 40 Hudson Street parking lot Hudson Street Kelleher Field parking lot site of former Marlborough railroad station Marlborough trailhead
Sources: Assabet River Rail Trail (ARRT),[3] Mass Central Rail Trail maps,[4] and Maynard Historical Society Archives[5]

Plans to convert the Marlborough Branch tracks into a rail trail date back to at least 1992.^[6][7] A January/February 1997 feasibility study conducted by the Commonwealth of Massachusetts supported the project's viability.^[6][7] The five municipalities through which the Marlborough Branch rails ran voted to approve the project in 1998.^[6][7]

In 2005 the south end of the trail, measuring 5.1 miles (8.2 km), was completed from Marlborough to a parking lot on Wilkins Street in northeast Hudson. Construction of 3.4 miles (5.5 km) of the north end of the trail – from the South Acton train station running south to central Maynard and then southwest to White Pond Road at the Maynard–Stow border – began in 2016. The groundbreaking ceremony for the north end was held on July 21, 2016.^[8] The ribbon-cutting event celebrating the completion was held August 10, 2018.^[1] Completion of the north end left a 4.0-mile (6.4 km) gap between the Marlborough–Hudson and Acton–Maynard portions of the trail. The east end of this gap is a dirt road known as Track Road, but no bridges over the two crossings of the Assabet River exist and some parts are on private property. Maps and updates are available on the ARRT website.^[9]

There are four boat launches providing canoe and kayak access to the Assabet River on the trail: one in Hudson at Main Street Landing; one in Stow at Magazu Landing; and two in Maynard, at White Pond Road and Ice House Landing. A map of locations of these boat launches is available on the ARRT website.^[10]

In the fall of 2018, a volunteer organization and project called Trail of Flowers began planting thousands of blooming bulbs and perennial flowering plants, bushes, and trees along the trail. Plantings in 2018 were limited to Maynard, but expanded to Acton in 2019, Marlborough in 2020, and will add Hudson in the future. Donations cover the cost of the bulbs and perennials, and volunteers plant them.^[11]

Future connections

A separate April 1997 feasibility study conducted by the Massachusetts Central Transportation Planning Staff proposed a Central Massachusetts Rail Trail extending continuously from the town of Berlin to Alewife station and Minuteman Bikeway in Cambridge.^[12] The proposed trail included the Marlborough Branch right-of-way in Hudson, meaning the Central Massachusetts Rail Trail would connect to and overlap with the then-proposed Assabet River Rail Trail.^[12]

In November 2013 the Massachusetts Department of Conservation and Recreation proposed a similar Mass Central Rail Trail - Wayside (MCRT) project to extend the existing portions of the MCRT in Waltham to Berlin and connect to the ARRT in Hudson.^[13]

In October 2022, 7.6 miles of the Mass Central Rail Trail - Wayside in Sudbury and Hudson began construction, which will create this connection to the ARRT when completed.^[14]

In 2021, an easement to extend the ARRT to Track Road in Stow was negotiated.^[15] In 2023, this extension was in the design phase.^[16]