Low Impact Development Pilot Project

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Overview

Using a $100,000 grant from the NC Division of Water Quality Section 319 Program, the Planning Department has partnered with a local land developer to incorporate low-impact development (LID) practices into a planned 72-lot subdivision (Montvale, Phase II) in west Cary. 

Under this partnership, planning and engineering staff have worked closely with developer Glen Futrell and his engineering consultant, Withers and Ravenel, to make this subdivision a prototype for using LID stormwater techniques in the Lake Jordan watershed. As part of this project, the Planning Department has also retained the services of a local LID consulting firm, Carter-Burgess Inc., to help with the review of subdivision plans, identify regulatory barriers to LID in the Town’s policies and ordinances, perform water quality monitoring at the site and publish findings from the effort. 

A portion of the preliminary construction plans are available for viewing:

Site Plan

Grading and Storm Drainage – Image 1, Image 2

There are four objectives of this project:

• Preserve ground and surface water quality in the Lake Jordan watershed through the use of LID design techniques
• Enable stakeholders (landowners, developers, builders, engineers, designers and the Town) to collaborate effectively in applying LID methodology in a residential setting
• Promote the LID concept, and educate landowners and developers on LID techniques
• Measure the effectiveness of LID techniques in an undeveloped or ‘greenfield’ environment

What is Low Impact Development?

Low Impact Development is a cost-effective, alternative stormwater control technology. It seeks to reduce the impact of development by preserving natural site features and controlling stormwater at the source.

LID aims to integrate stormwater quality and quantity controls throughout a development. The goal of LID is to apply site design techniques, strategies and best-management practices to store, infiltrate, evaporate, retain and detain stormwater on the site to more closely replicate pre-development runoff characteristics (volume and rate of runoff), thereby limiting the increase in pollution caused by development.

Contact
Anna Readling
Senior Planner
Town of Cary Planning Department
(919) 469-4084
anna.readling@townofcary.org

Suggested Resources

Center for Watershed Protection
Low Impact Development Center
National Association of Home Builders Research Center