Norwood Conservation Commission OKs Moderna parking redevelopment with conditions to protect wetlands
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Summary
The commission approved an order of conditions for Moderna’s parking-lot redevelopment at 10 Forbes Drive, allowing 35 freezer 'clean units' on concrete pads while requiring stormwater permit review, a SWIP, and a planting plan to replace trees removed in the riverfront buffer.
The Town of Norwood Conservation Commission on Nov. 5 approved an order of conditions allowing Moderna to redevelop about 1.6 acres of an existing paved area at 10 Forbes Drive for a storage and parking area for 35 trailer-mounted freezer "clean units," subject to specific conditions intended to protect adjacent wetlands and floodplain.
At a public hearing, PAR Corporation engineer Joe Weed described the proposal as redevelopment of an existing parking area to include concrete pads, underground electrical pedestals fed from the mansion parcel, and a perimeter security fence. "They're basically freezer, like freezer container storages that are mounted on a trailer chassis," Weed said, describing how the units will be parked on concrete pads and plugged into electrical pedestals.
Why it matters: The site lies within riverfront and buffer zones near Planting Field Brook and includes a bordering vegetated wetland. Wetland scientist Seba Anderson told commissioners the project will remove six trees and about 700 square feet of natural vegetation in a southwest corner of the site, but that much of the work occurs within previously degraded paved area. "There is work within the no build and 25 foot undisturbed buffer area," Anderson said; the application included a waiver request to permit restoration plantings and invasive-species removal in that zone.
Commissioners and staff focused on mitigation and stormwater controls. PAR proposed a planting mitigation plan at roughly a 2:1 ratio (12 trees to replace six removed), a restoration seed mix of New England wetland perennials, and invasive removal to improve tree health. For runoff control the applicant described deep-sump catch basins, underground filtration, and underground detention to meet Norwood stormwater requirements; design targets cited were 80% TSS removal and 50% phosphorus removal. The consultant said infiltration systems were not feasible because soils are largely deswilled, silty fill.
The commission attached three principal special conditions to the order of conditions: the applicant must obtain a Norwood land-disturbance permit and submit any revised plans to the Conservation Commission; provide a site‑wide or modified SWIP (stormwater pollution prevention plan) prior to land disturbance; and submit a planting plan for the Moderna campus master plan approved by the conservation planner that specifies native trees and shrubs adequate in number, size and variety to offset removals. Conservation planner Carly (staff) and applicants discussed whether a 1:1 replacement might be more realistic given available planting space and trunk-diameter considerations; the applicant said it would work cooperatively with staff to finalize planting size and numbers.
The commission voted in favor of the order of conditions after receiving the staff-recommended special conditions. The motion passed by roll call of members present.
What’s next: The applicant must secure the Norwood land‑disturbance permit and finalize any plan revisions required by the stormwater committee and conservation planner. The commission indicated it will review revised plans and inspections as needed during construction.
