Oldcastle Stormwater Solutions Group Supplies Stormwater Detention System

Storm Capture system installed in three days at Charlotte townhome development project.
Oldcastle Stormwater Solutions Group Supplies Stormwater Detention System
Workers install a 17,000 cubic foot stormwater detention and sand filter system manufactured by Oldcastle Stormwater Solutions Group at a Charlotte townhome development.

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Oldcastle Stormwater Solutions Group supplied a 17,000-cubic-foot stormwater detention and sand filter system at the new Cottages on Providence development in Charlotte, N.C., an upscale townhome development by Wendy Field Consulting.

Site designer Orsborn Engineering Group needed a combination stormwater detention and sand filter system to control and remove pollutants from post-construction runoff for this very dense urban development.

Oldcastle Stormwater Solutions manufactured and delivered their Storm Capture module system to meet the requirements for an integrated stormwater detention and treatment system with large storage capacity and a small installed footprint.

The stormwater detention system, sand filter system and forebay chambers were combined to create a single stormwater management system. The system, installed under the driveway between two rows of townhomes, includes a detention system comprised of 19 5-foot-tall modules; a sand filter system, created using six 9-foot-tall modules; and two sedimentation forebay chambers, comprised of two 9-foot-tall modules.

The forebay chambers trap large sediments and floatables, while the sand filter uses sand media to filter smaller particles and other pollutants. The detention chamber will store runoff and allow sufficient time for treatment through the sand filter. Discharge from the system is controlled by an orifice plate at the outlet pipe. The system is designed to meet AASHTO HS-20-44 for traffic loads and has multiple manways for future maintenance access.

The stormwater management system receives water from site storm drains and downspout collection pipes, as well as from a grate directly over the top of one of the forebay modules. Water will pass through the Storm Capture system and then out to the storm drains.

Charlotte-based Siteworks LLC installed the Storm Capture system over a three-day period, in June of 2014, for General Contractor HR Construction. The base sections of the sand filter, detention and forebay modules were installed the first day. On day two, the modular nature of the Storm Capture system provided the contractor with an opportunity to install all of the internal sand filter components (under drain piping, stone, and sand media) very easily while the system was still open. Then on day three, the tops of the modules were installed and backfilling operations began.

The stormwater management system constructed at The Cottages on Providence project will control and treat rainwater runoff during storms adding a positive result to the communities’ environment now and in the future.

The Cottages on Providence is scheduled to have townhomes available for occupancy in January 2015.

About Oldcastle Stormwater Solutions:
With a strong pipeline of innovation, Oldcastle Stormwater Solutions brings a full line of water conveyance, storage, and treatment products to the marketplace. In addition, with Oldcastle Stormwater Solutions successful launch of Storm Capture detention, retention and infiltration products Oldcastle Stormwater Solutions now provides the entire treatment train solution that civil engineers, owners and contractors are demanding. www.oldcastlestormwater.com

About Oldcastle Precast:
Oldcastle Precast is the clear choice for building products and services for North American Infrastructure projects. We are a leading provider of engineered precast product solutions including the newly acquired solutions from KriStar enterprises. Oldcastle Precast serves a number of market sectors including: Building Structures, Government/Military, Power & Energy, Water Construction Services, Engineering Support, LEED/Green Consulting.


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