Somerset County outlines concept, timeline for Washington Valley Park interpretive center

Somerset County officials on May 13 presented a concept design and programming plan for an interpretive center at Washington Valley Park, part of a larger five‑point county interpretive plan tied to the county's 250th anniversary. County staff said they purchased the key parcel in 2023, demolished an existing building in 2024 and plan to bid construction of a new driveway this spring to improve access.

The project team said the interpretive center would be a modest, largely transparent building with a central meeting/exhibit room and an extended deck to take advantage of views over Bound Brook and toward Princeton and New Brunswick. ‘‘This is a modest building. It's fairly small,’’ said Michael, the project's architect, describing a 360‑degree viewing approach and a design intended to sit lightly in the landscape.

Why it matters: Washington Valley Park is the site of the Revolutionary War Middlebrook encampments of 1777–79, and county staff said the property contains archaeological resources and important vistas used by Gen. George Washington. ‘‘Washington Valley Park is the site of the Middlebrook Encampment of 1777,’’ said Josephine Toronto, the county historian, noting the site’s archaeological significance and its potential to connect multiple county historic sites through interpretive programming.

Most important facts: County staff listed the following near‑term steps and constraints: the Tupelo (Petullo) parcel was acquired in 2023 and its building removed in 2024; the county intends to bid construction of a southern driveway this spring to route visitor traffic away from private drives; routine archaeological oversight will be required for any park development; and the interpretive plan and building design must be integrated as design development proceeds. County staff said they are targeting a 2026 opening, a tight schedule that will require additional staff and consultant work.

Discussion and concerns: Commissioners asked detailed questions about site work and operations. Commissioner Marano asked whether archaeology would be performed across the property and staff said borings for foundations and other ground disturbance would include archaeological review and oversight. Commissioner Drake raised questions about parking counts and bird collisions, noting heavy glazing in the concept and asking how the design would avoid bird strikes; staff said they would research glass treatments and mitigation measures. Drake also asked about green building standards and potential heating/cooling systems; staff said the project will comply with county building standards and that more specific energy and sustainability decisions will be made in later design phases.

Programming and access: Katie Hemmings and other staff said the Cultural & Heritage Commission envisions the center as an ADA‑accessible hub for history and nature programming, suitable for local historical societies, environmental groups, small performances and rotating exhibits. Staff described opportunities to tie interpretive signage, timelines and interactive displays both inside the building and along the approach walkway and bridge from the parking area.

Other site notes: The county also reported continuing due diligence on a separate Old Stone Arch Bridge property acquired in 2024; environmental review is ongoing for that parcel. Staff said archaeology work completed for the driveway corridor ‘‘came up clean’’ but that a known 18th‑century tavern and homestead site exists elsewhere on the larger park parcel and will be treated accordingly in design and construction.

Next steps: Staff will integrate the interpretive plan with the building design, proceed with bidding the driveway construction this spring, and advance design development with archaeological oversight and sustainable building considerations. No formal vote or appropriation for the building was taken at the May 13 work session; commissioners were asked to provide feedback and staff will return with further design and procurement items for future meetings.