Stormwater Management

Stormwater management systems must conform with local, state and federal regulations and the Clean Water Act. With our offices in Rochester NH and Alton NH we are first choice for stormwater management systems for sites from the Seacoast to the Lakes Region.

Going far and beyond

Norway Plains' engineers analyze existing and potential drainage systems using complex computer modeling software.  We can prepare erosion and sedimentation control plans designed to protect downstream watersheds and other environmentally sensitive areas.

Our engineers can evaluate existing drainage problems and develop corrective plans to improve stormwater flow and drainage in both new and existing constructions.