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Low Impact Development & Bioretention

Low Impact Development (LID) is an innovative approach to stormwater management involving site design that duplicates the hydrologic features of an undeveloped watershed. This relatively new approach to stormwater management is an increasingly more popular way of preserving water within it's natural watershed and protecting valuable groundwater resources.


Norfolk awarded 2006 Smart Growth Award

Norfolk Ram Group, LLC and the Town of Cohasset, MA have been awarded a 2006 Smart Growth award by the Commonweatlh of Massachusetts.

Low Impact Development Presentation availble for download at the Charles River Watershed Associations's Website. Michael F. Clark, P.E., presented "LID in Practice:Engaging the Community.  The Cohasset Retrofit Project" at the CWRA's Stormwater Sessions Workshop on June 21, 2006.

LID and Norfolk Ram in the News
Read about Norfolk Ram's LID projects in the New England Real Estate Journal, Cohasset Mariner, Patriot Ledger, Scituate Mariner and Hingham Journal.

Visit our Resources page for more information on LID.

Instead of conveying, managing and treating stormwater in large, costly facilities located at the bottom of drainage areas, and often outside of the natural watershed, LID simulates natural hydrologic cycles by addressing stormwater through small, cost-effective landscape features located at the lot level. These landscape features, known as Integrated Management Practices (IMPs), can be distributed throughout a developed site to mitigate the impact of development. IMPs minimize impervious surfaces, create on-site storage, maximize opportunities for infiltration, slow down the flow of surface run-off, detain, and/or retain water, and remove pollutants. IMPs can also be incorporated into existing developments utilizing retrofit design.

Bio-retention presents a low-cost and low-maintenance technique to improve stormwater quality (beyond that which is obtained by implementing the Massachusetts Stormwater Policy) and stormwater impacts to wetland resource areas. Bio-retention facilities consisting of engineered soils will capture litter, debris

low impact design & bioretention

King Street Rain Garden (Bioretetion)

Cohasset Water Department, July 2006.

and suspended solids, and the soil plant matrix will treat stormwater as it passes through, capturing a significant amount of pollutants. Treated runoff is then infiltrated and/or collected in traditional stormwater collection systems. Norfolk Ram Group is an engineering leader in Massachusetts in implementing improvement projects involving Low Impact Development (LID) and retro-fit designs (LID / BMP design) for developed/urbanized areas, including stormwater monitoring, permitting, and construction administration.  Norfolk Ram is one of the few firms in Massachusetts with extensive expertise in LID design and construction and is an active member in the Ecological Landscaping Association

You will find a list of on-line resources for Low Impact Development in the resources page of this web site.

For more information on Norfolk's low impact development or bio-retention services contact Mark S. Bartlett, P.E. 

Low Impact Design and Bioretention Representative Projects

Environmental Engineering & Consulting Services: Assessment, Remediation, Planning, and Management
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In Situ Chemical Oxidation (Site Remediation) | Low Impact Development (Stormwater Management)
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