News Archive

New Winter Maintenance Specifications for Porous Pavements

Tuesday, February 01, 2011

In February 2011, UNHSC published new winter maintenance specifications for porous pavements. You can download the document here »

NH Rain Garden Training 2010

Monday, October 25, 2010

The Stormwater Center is one of the sponsors of the New Hampshire Rain Garden Training for Professional Landscapers, to be held October 25 & 26, 2010 at the Urban Forestry Center in Portsmouth, NH. More information »

UNHSC on NHPTV's Planet Granite

Tuesday, January 05, 2010

UNHSC partnerships highlighed on NHPTV's Planet Granite

Watch the full episode. See more NHPTV Specials.

First Porous Asphalt Road in NH

Tuesday, December 08, 2009

A new active adult community in Pelham is home to the state’s first porous asphalt road, thanks to the efforts of the University of New Hampshire Stormwater Center. More Information »

UNH Today, 12.08.09

2009 Biannual Report

Monday, June 01, 2009

Pavement Sealcoat

Wednesday, April 08, 2009

New research indicates that sealcoat may contribute to increasingly significant amounts of polyaromatic hydrocarbons entering waterways from stormwater runoff. More »

Campus Journal, 04.08.09

Seasonal Performance Variations for Storm-Water Management Systems in Cold Climate Condition

Sunday, March 01, 2009

This new journal article by the Center is available here »

Journal of Environmental Engineering, March 2009

Collaboration with the town of Hampton, NH NROC and PREP

Thursday, February 12, 2009

The UNHSC participated in an informational session for town officials and concerned citizens. This session covered up-to-date information about stormwater concerns for the town of Hampton, the benefits of improving stormwater management, latest technologies and practices, new state and local regulations, and managing stormwater costs. UNHSC presentation materials can be viewed here »

New Guidance from New Hampshire Department of Environmental Services

Sunday, February 01, 2009

There are significant revisions to the regulations that govern land disturbance under the Alteration of Terrain program, a revamping of the New Hampshire Stormwater Manual, and a new handbook that we can use to help design projects.

  • NH DES stormwater regulations, effective January 1, 2009, are available here »
  • NH DES has revised and updated the NH Stormwater Manual. The new manual comes in three volumes:
    • Volume 1: Stormwater and Antidegradation
    • Volume 2: Post-Construction Best Management Practices Selection and Design
    • Volume 3: Erosion and Sediment Controls During Construction
    The manual is available online here »
  • NH DES issued a guidance document titled, Innovative Land Use Planning Techniques: A Handbook for Sustainable Development, to address the need for guidance and technical assistance on Innovative Land Use Controls by municipalities. The handbook includes sections dealing with development density, environmental characteristics, and site level design. The document can be found here »

2009 UNHSC Porous Asphalt Specifications Review and Update

Friday, January 30, 2009

The UNHSC is reviewing and updating the asphalt mix and design specification this winter in preparation for next season’s installations. The specifications update should be completed by Spring 2009. Items that will be in the update include clarification of binder type, polymer modifiers, poly fiber quantities, curing time, small batch jobs and quality control,  multiple lift installation, QC testing, and designated contacts for suppliers.