Stormwater
Cotuit Library Bioretention, Cotuit, MA, Gerald Beetham for APCC
Green Stormwater Infrastructure (GSI)
GSI mimics natural processes to manage stormwater runoff while also providing healthier spaces for people, plants, and animals. GSI includes a variety of stormwater practices that reduce and/or treat stormwater, such as rain barrels and cisterns, rain gardens, bioretentions, green streets, underground infiltration, porous pavements, and constructed wetlands.
Integrated Project Approach
Horsley Witten Group has been on the forefront of GSI planning and design from its very inception. Our staff is experienced in adapting GSI design for a range of site conditions and contexts, from parks to urban centers. We have developed state and local design manuals that incorporate GSI and have performed code audits to identify GSI opportunities and barriers within local regulations. Our staff love getting out into the field for watershed assessments and identifying the best locations for GSI retrofits!
"At HW we try to mange stormwater differently...green stormwater infrastructure -- nature based solutions designed after Mother Nature."-- Rich Claytor, P.E., Principal, Sr. Water Resources Engineer
Areas of Expertise
Our GSI team of professionals brings specialized knowledge across a broad range of project types, with particular depth in
GSI Planning, Sizing, and Design
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Stormwater Master Plans and Watershed Plans
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Permitting Assistance
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Soil Evaluations
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Field Investigations
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Vulnerability Assessments
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GIS Mapping/Modeling
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Municipal and Public Training
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Native Plant Selection and Restoration
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MS4 and TMDL Assistance
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Phosphorus Control Plans
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ORM Plans and Workshops
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Grant Funding Assistance
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Public Outreach and Engagement
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Construction Oversight
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Nature based Solutions - An Introduction to Green Stormwater Infrastructure by Rich Claytor, P.E.
Work With Us
Have a unique challenge that needs a sustainable solution?
Let's talk about what your community or organization needs and how our team of experts can help.