By Matthew Hersh
The rehabilitation of the Princeton Battlefield State Park, including restoration of historic fence lines, new walking paths, meadow restoration, and removal of a deteriorated asphalt trail, was to be presented to Princeton’s Historic Preservation Commission (HPC) Tuesday night, August 25, after Town Topics’ press time, as the site prepares for the 250th anniversary of the 1777 Battle of Princeton on January 3, 2027.
The project, proposed by the American Battlefield Trust in coordination with the New Jersey Department of Environmental Protection (NJDEP), is part of an ongoing restoration effort supported by a 2021 National Park Service American Battlefield Protection Program grant. The work is intended to restore elements of the battlefield’s historic landscape while minimizing disturbance to archaeological resources.
Because Princeton Battlefield State Park is listed on the State and National Registers, is a National Historic Landmark, and is also within a locally designated historic district, the Princeton HPC has been involved at various stages of the project.
But the commission will not formally approve Tuesday’s proposal.
“As a state park, the Princeton HPC does not have jurisdiction to make a formal decision on the project,” said Historic Preservation Officer Sara Quinlan. She
said she looks forward to hearing the commission’s “comments and recommendations regarding the proposal,” as well as seeing its progress over the next year.
The current project primarily involves land rehabilitation within the state park and is subject to New Jersey State Register review, Quinlan said. The proposed treatment measures appear to follow the Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for the Treatment of Cultural Landscapes, she said.
According to project materials provided by the municipal Office of Historic Preservation, the Trust’s proposal is based in part on the Princeton Battlefield Preservation and Interpretation Plan completed in 2022 and archaeological investigations conducted in 2024 and 2025. The project seeks to recover elements of its history, including historic fence lines and traces of roads and lanes.
Among the Trust’s discoveries guiding the project is a historic road trace along the property line between Princeton Battlefield State Park and the Trust’s Maxwell’s Field property. Archaeological research confirmed that the trace predates Mercer Road and corresponds to the north-south farm lane associated with the William Clarke farm.
The project also proposes fencing to mark historic landscape features. Five-rail and three-rail post-and-rail fences would be installed along documented historic fence lines, with archaeological monitoring associated with the limited ground disturbance required for fence posts.
A separate snake-rail fence would mark the historic Sawmill Trace, which served as a route to the Clarke farmsteads during the battle era. The Trust acknowledges that there is no evidence that a fence actually stood along that road, making the proposed fence an interpretive feature rather than a reconstruction of a documented historic fence. The fence research prepared for the project found stronger evidence for other historic fence lines. Documentary accounts, historic maps, visual sources, and archaeological evidence indicate that fences were part of the battlefield landscape and affected how troops moved and fought.
The rehabilitation also outlines new maintenance. More than 50 acres of grassland at the state park and Maxwell’s Field will undergo rehabilitation, with the goal of reducing mowing by 75 percent and converting portions of mowed turf to native meadow.
Fall work is expected to include mowing after nesting season, targeted herbicide treatment, a prescribed burn, and a winter-wheat nurse crop. Native grasses and wildflowers are scheduled to be seeded in spring 2027. Sustainable Princeton is conducting a BioBlitz to document the site’s flora and fauna before rehabilitation begins. New, cleared paths will follow portions of Sawmill Trace and Clarke Lane, as well as a non-historic connection toward Mercer Road. The Trust describes the trails as part of the site’s interpretation, allowing visitors to move through the landscape along historic alignments.
NJDEP also plans to remove a deteriorated asphalt trail running from Mercer Road along the Maxwell’s Field boundary toward Institute Woods. The application describes the trail as “severely degraded.”
The project includes 200 tree plantings, including 30 trees planned for Maxwell’s Field and 20 trees replacing dead trees planted on Institute for Advanced Study property in 2019. Another 100 trees will be planted at Mountain Lakes, operated by Friends of Princeton Open Space. A proposed 50-tree William and Ann Clarke commemorative orchard will be submitted separately.
The rehabilitation is expected to continue into next year, with spring meadow seeding following the initial fall vegetation work.
Quinlan said the project represents part of an “ongoing restoration project” of the state park and that she looks forward to “seeing its progress over the next year.”