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Projects: Water Resources

Photo by Josh Sterling — Perkiomen Mapping and Flood Mitigation Study

Featured_Bethlehem-Township-Capital-Improvement-Plan-Hydraulic-Model — Hydraulic Model & Capital Improvement Plan

Featured_Siebert-Park-Stream-Restoration — Siebert Park Stream Restoration, Trail, and Kayak Launch

Featured_Groff-Farm — Groff Farm

Featured_Walter-Farm — Walter Farm

Featured_Bullfrog-Valley-Stream-Restoration — Bullfrog Valley Stream Restoration

Featured_Southwestern-Butler-County-Flood-Study — Southwestern Butler Flood Study

Erin Letavic and Steve Deck (of the Tri-County Regional Planning Commission) accept the 2023 Governor's Award for Local Government Excellence for the Dauphin County Water Resources Enhancement Program (WREP) — Dauphin County Water Resources Enhancement Program

Bull Run Floodplain Restoration & Nature Play Area — Bull Run Greenway, Floodplain Restoration & Nature Play Area

Featured_Conewago-Creek_20190925_163712 — Conewago Creek Stream Restoration

DTMA-stormwater-services_830x385 — Derry Township Muncipal Authority Stormwater Management

FEMA Hazard Mitigation Grant Program

Mobile GIS Development for MS4 Inspections

Derry Township Stormwater Improvements

© 2026 | Herbert, Rowland & Grubic, Inc.

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