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UNH Detention Pond Design to See Widespread Use
A news article just released about the NHDOT I-93 Gravel Wetlands. More>>
Eagle Tribune, January 11, 2009
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Pervious Pavements
New findings about their functionality and performance in cold climates. More>>
Stormwater, September 2008
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Unpaving the Way to Success
This article about the recent LID conference, "Managing Stormwater with Low Impact Development in Northern New England Conference," appears in the New Hampshire Coastal Program newsletter. More>>
The Rip Tide, Summer 2008
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Center director Rob Roseen and Outreach Coordinator Jamie Houle spoke with Laura Knoy about Stormwater on NH Public Radio's Exchange on June 10, 2008. Listen here>>
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Porous Concrete Combats Dreaded Potholes, Flooding
The Stormwater Center was featured on WBTZ TV on April 29. More>>
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UNH Research Says, "Hold the Salt"
Researchers from the UNH Stormwater Center are testing technologies that may put parking lots on a “low-salt diet” in the future. More>>
Campus Journal, 2-20-08
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Winning Combination
NEIWPCC Collaborating with UNH Stormwater Center. More>>
Interstate Water Report, Winter 2007-08
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Innovative Stormwater Management Inventory
Check out this UNHSC-NEMO database of New England's innovative stormwater practices here>>
If you know of any examples of BMP implementation that should be included in the new UNHSC-NEMO management inventory? Take a
moment and visit our on-line
submission form where you can enter relevant information
directly into the database.
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Updated Design
Spec
The UNHSC Design Specifications for Porous Asphalt Pavement
and Infiltration Beds is in its final form. More>>
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Salt Reduction for Pervious Pavements
Salting strategies are currently being studied to determine
if reduced amounts of salt are adequate for use on a porous
asphalt parking lot. Test-plot analyses, which include percentage
of snow and ice cover, undissolved crystal mass, pavement
temperature, dynamic friction factors, and required salt loads
compared to standard application rates, demonstrate that porous
asphalt requires as little as 0-25% less salt for winter maintenance
than standard pavement. Higher frictional properties were
recorded on porous asphalt with no salt addition than were
observed for standard asphalt with a full application. The
lack of standing water on porous asphalt greatly reduces the
number of required applications during freeze-thaw periods
and largely eliminates the formation of black ice. Report
should be available by Fall 2007.
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NH Department of Transportation I-93 Exit
2 Gravel Wetland
The UNHSC has been collaborating with the NH Department
of Transportation and the project’s engineering consultant
design teams (Vanasse Hangen Brustlin, and Louis Berger Group)
involving the use of gravel wetlands as part of I-93 Corridor
Expansion. The use of gravel wetlands for this project was
instrumental to meeting permit requirements to prevent impacts
to impaired waters within the watershed. Pilot gravel wetlands
are planned for install in 2007. If the pilot projects are
successful, it is conceivable that the gravel wetlands will
be an integral component in future highway expansion.
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The Rhode Island Coastal Resources
Management Council (CRMC) Seeks Improved Management of Stormwater
Runoff
As of Feb. 2007, CRMC prohibited the use of hydrodynamic
separators as the sole method of stormwater treatment for all
new development and redevelopment projects based on findings
at UNHSC and elsewhere. The recommendations are based on moderate
performance for these systems such that their usage will be
limited to pretreatment of stormwater. Similar restrictions
have occurred in other states in the region and the across the
country. More>>
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Hugh Gregg Coastal Conservation Center,
Stratham, NH
The UNHSC designed an integrated stormwater management
strategy for the NH Fish and Game Department and the Great
Bay National Estuarine Research Reserve for the beautiful,
newly constructed education facility which highlights several
sustainable design features. The stormwater management, to
be constructed in summer 2007, includes a porous asphalt parking
lot and other LID strategies. More>>
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