Princeton Planning Board approves conditional use for Community Park Elementary additions, bike path

The Princeton Planning Board voted unanimously Oct. 16 to grant conditional-use authorization for Princeton Public Schools to add two building extensions, site improvements and a shared-use bike path at Community Park Elementary School, 372 Witherspoon St. (file P2525-685CO). Councilman Mark Cohen moved the approval; Owen O'Donnell seconded. The roll-call vote was 6–0 in favor.

The board's action allows two compact building additions at the rear of the school, a new 8-foot‑wide asphalt bike path linking the school and the municipal pool/parking area, a reconfigured circulation and playground layout, and a bioretention basin to manage runoff. Planning staff and the applicants described the submission as a conditional‑use review under section T-10‑B‑3‑21 of the municipal ordinance and said the project also must conform to Section 300 of the State Board of Education's 1969 Guide for Schoolhouse Planning and Construction.

Why it matters: The work responds to programmatic needs approved in a school referendum and includes infrastructure intended to increase pedestrian and bicycle access while staying within the residential zoning regime that makes schools a conditional use. The board and municipal staff described the bike-path connection as part of a longer-term municipal plan to improve Community Park and link neighborhood walking and cycling routes.

Key approvals and conditions - Approved scope: two building additions behind the existing school, a reconfigured courtyard and playground, an 8-foot shared-use bike path between Witherspoon Street and the pool, and a stormwater management system including a bioretention basin. The bike path will run partly on municipal property and partly on the pool parcel. - Required conditions cited on the record and reflected in staff memos: a fence and locked gates around the bioretention basin; locked security fencing and gated egress for the new courtyard; coordination with municipal staff on the shared‑use path (including legal agreements and cross‑easement language); consultation with the municipal arborist to minimize tree impacts during construction; and compliance with New Jersey stormwater management rules and review by the D&R Canal Commission.

Traffic, parking and circulation Traffic consultant Patrick Downey of Dynamic Traffic told the board the added building capacity does not create a level of new vehicle trips that DOT would call significant (100 peak‑hour trips). Downey reported an observed midday peak parking demand of about 74 spaces; with up to 12 additional staff accounted for, estimated demand rises to roughly 76 spaces. The combined supply available to the school and the adjacent Park South lot is 94 spaces, which the consultant said is sufficient to serve the project as presented.

The applicant and municipal staff also described several off‑site, municipal actions to improve circulation: refreshed or added parking signage in the Park South lot, pavement markings and signage to clarify the school property's one‑way egress at John Street, and bus‑only pavement markings on Witherspoon where buses currently load and unload. The board required the schools to provide bicycle parking consistent with the municipal ordinance; the schools said they may provide more than the minimum required.

Design and safety details - Bike path: shown on the plans as an 8‑foot‑wide asphalt shared‑use path, routed to avoid mature trees where possible and requiring municipal approval for the portion on municipal land. - Fencing: the rain‑garden/bioretention basin will be enclosed by a fence specified at about 4 feet high; security fencing along the school edge of the bike path was discussed at 6–8 feet to match existing conditions and enhance student safety. - Basin depth and operation: the basin was described on the record as roughly 4 feet deep at design depth; applicants said it is designed as a detention feature to meet stormwater rules and to drain after large events. The board and schools agreed to signage and locked gates to deter after‑hours access.

Public comment and board discussion Resident Evan Anderson (302 John St.) told the board he supports the projects broadly but asked the municipality and school district to coordinate construction and public‑realm upgrades among three nearby efforts: the school additions, municipal park upgrades and a planned housing project on the former DPW lot across the street. Anderson also raised safety concerns about the basin, saying, “Kids will all the time go into it.” The schools and staff said the basin will be fenced, gated, and signed, and that it will generally be dry except during and shortly after storms.

The board discussed construction logistics; the schools said construction access will be through the existing loading area behind the cafeteria, minimizing impacts to the front loop and main western playgrounds. The schools anticipate bidding between November and January and a construction period starting in spring, with the main additions expected to take roughly 18–24 months.

Motion and vote Councilman Mark Cohen moved to approve the conditional‑use authorization, citing the conditions and coordination discussed on the record; Owen O'Donnell seconded. Roll call: Nat Bodekheimer — yes; Councilman Mark Cohen — yes; David McGowan — yes; Owen O'Donnell — yes; Claudia Wilson Anderson — yes; Chair Claudia Wilson — yes. The motion passed 6–0.

What remains: The shared‑use path requires municipal council action and cross‑easement/legal agreements before the municipal portion may be constructed, and the stormwater design will be reviewed by the D&R (Delaware & Raritan) Canal Commission. Planning staff noted that the schools will coordinate with municipal engineering, recreation, and the municipal arborist during final design and construction.