Plan commission approves floodplain adjustment for Highland Estates after FEMA LOMR

The Pleasant Prairie Plan Commission approved a floodplain zoning ordinance amendment and a related comprehensive-plan amendment to reflect a FEMA Letter of Map Revision (LOMR) that updates the 100-year floodplain in the Highland Estates subdivision near Jerome Creek.

Rob, village planning staff, told commissioners that the village board had earlier (2024) concurred with a boundary adjustment, and that village engineers and the Department of Natural Resources reviewed as-built grading and floodplain calculations before FEMA issued the LOMR effective June 5, 2026. The ordinance amendment adds a reference to the LOMR in the village code.

During the public hearing, resident Brian Cross said Jerome Creek lies on his property and asked whether the culvert under 93rd Street had been analyzed for discharge rate and whether its size or location had changed. A project engineer replied the culvert under the road was not altered or relocated as part of the Highland Estates work and said the team adjusted local flood-storage grading so the storage volume met or exceeded previous conditions; therefore the culvert’s rate of discharge was not changed by the project’s grading, staff said.

Neighbor Sue Roll asked whether the change would affect her property across 93rd Street; staff responded the culvert under 93rd remains the restricting point for flows beyond the area and that engineering review for future permits would address grading and drainage adjacent to building sites.

The commission moved and approved both the zoning ordinance amendment to reference the FEMA LOMR and Plan Commission Resolution 2606 to amend the comprehensive plan; both passed by voice vote (no roll-call tallies recorded). The LOMR was cited as effective 2026-06-05.