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Plan Commission approves floodplain boundary adjustment for 116th Avenue extension
Summary
The Pleasant Prairie Plan Commission approved a floodplain boundary adjustment tied to the 116th Avenue extension proposed by Bond Companies and the Inspire Prairie Springs development; staff said the revision removes 37,750 cubic feet of soils and creates 49,540 cubic feet of compensatory floodplain and complies with village ordinance and FEMA rules.
The Pleasant Prairie Plan Commission approved a floodplain boundary adjustment on a proposal tied to the Inspire Prairie Springs apartment development, staff said. Rob, speaking for village staff, described the request by Robert Bond of the Bond Companies to support construction of a 116th Avenue extension that would cross an unnamed tributary of the Des Plaines River.
Rob told the commission the revised boundary adjustment would “remove 37,750 cubic feet of soils and to create 49,540 cubic feet of floodplain” by installing culverts under the proposed roadway and said the change is consistent with chapter 4.30 of the village zoning ordinance and the applicable DNR and FEMA rules. The chair closed the public hearing, a commissioner moved to approve the adjustment as presented by staff, the motion was seconded, and the commission approved the item by voice vote.
The staff presentation said the CSMs and detailed 116th Avenue plans will be considered by the Planning Commission on Jan. 20, 2025, and then by the village board after those revisions are submitted. Staff also noted the ordinance requires any land removed from the regulatory floodplain to be filled to at least two feet above the regional base flood elevation and to provide compensatory storage contiguous to the preexisting regulatory floodplain.
