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The UNH Stormwater Center (UNHSC) is dedicated to the protection of water resources through effective stormwater management.

  • Tree in Portsmouth

    Hodgson Brook Tree Filter, Portsmouth, NH, Installed 2010 with the Hodgson Brook Watershed Association, and the City of Portsmouth.

  • day-lighted headwaters, berry brook, Dover NH
  • aerial view of Boulder Hills

    New Hampshires first porous asphalt road located at the Boulder Hills subdivision, Pelham, NH, Installed Fall 2009.

  • working shoreline, Portsmouth NH

News & Announcements

  • Credit for Going Green

    The UNH Stormwater Center co-created to help New Hampshire communities meet water quality standards through the use of buffers. Project engaged a panel of experts to generate science-based recommendations for calculating the pollutant removal rate of restored or constructed buffers in development, redevelopment, and restoration projects, and others involving land use change.

    The project was sponsored by the National Estuarine Research Reserve System Science Collaborative.
     

    Access an outreach toolkit to support sharing this project’s results and process >
     

  • System Sizing

    Research results from a two year monitoring project that evaluated green infrastructure retrofit systems reveal significant volume reductions in the field compared to modeled performance estimates.

    Published in Water Environment Federation Stormwater Managmenet, spring 2018

    Weblink: Stormwater Article

  • EPA impressed by Dover’s Berry Brook restoration

    The city and the University of New Hampshire Stormwater Center, with financial assistance from the Dept. of Environmental Services, have completed numerous projects since developing an action plan a decade ago to improve the brook’s health.

Recent Projects

Berry Brook Project

The Berry Brook project in Dover NH is complete!  This partnership between NHDES, UNHSC and the... More »

Undersized GI System Performance

This report details results from two years of study of two undersized stormwater control measures.... More »

Stormwater Standards for the future

UNHSC, in collaboration with VHB, SRPC and the Town of Durham recently completed a study modeling... More »