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Troy Brook Project

The Troy Brook watershed located in Morris County is within the larger Whippany River Watershed, which then discharges to the Passaic River. The Troy Brook watershed is approximately 16 square miles, with 24 miles of river and more than 400 acres of lakes, including Lake Parsippany and Mountain Lake. For more information about these projects, or how you can get involved please contact Pat Rector-Woods at or by phone at 973-285-8300, ext. 225

Implementation of the Troy Brook Plan - Current Projects

Porous Asphalt

Cluster Rain Garden Project - took place in The Hills of Troy Neighborhood

Parsippany-Troy Hills - Municipal Efforts

At the Parsippany-Troy Hills Municipal Building two rain gardens were installed in September 2009. Volunteers from the community and the Whippany River Watershed Action Committee were trained on rain gardens and how they help address stormwater problems.

At the Parsippany-Troy Hills Department of Public Works Yard Turfstone pavers were installed on an emergency road. The road previously allowed stormwater to flow directly to the Troy Brook. Turfstone pavers are interlocking pavers that are placed on roads or parking areas that do not receive heavy traffic. The pavers allow grass to grow between them, decreasing the amount of runoff from the area.

Dirt road. Road with pavers.
Emergency Access Road prior (left) and after (right) installation of Turfstone Pavers. Photos Pat Rector-Woods, September 2009.

Also installed at the Department of Public Works is a 2,000-square-foot bioswale that treats 1.6 acres of parking lot during the 10-year storm (5.23 inches for Morris County) along with some rooftop runoff and washwater from vehicle washing.

Jute fabric.
Installing jute fabric to provide structure for small plants placed in channel. Photo Pat Rector-Woods, Rutgers Cooperative Extension May 2011.
Checkdam placed to help slow velocity of water in the channel. Two checkdams were installed in the channel. Photo Pat Rector-Woods May 2011.
Man placing stones.
Dr. Chris Obropta hand places rip rap stones. Photo Pat Rector-Woods May 2011.
Dirt road with closed gate.
Testing 1,2,3. Storm event during construction. Photo Greg Schneider, Parsippany-Troy Hills Department of Public Works. May 2011.
Bioswale in July of 2011. Photo Pat Rector-Woods.

Normandy Office Complex

Normandy Parking Lot Project (2.9MB PDF)- Powerpoint of the project

At the Normandy Property office complex on Cherry Hill Road a portions of the upper parking lot were fitted with pervious pavement to allow for more ground water infiltration and disconnection of stormwater. Porous pavement is a permeable pavement surface with gravel underneath. The gravel temporarily stores stormwater runoff prior to infiltration into the soil. By only using porous pavement on select portions of the parking lot it allowed drainage of the parking lot without the cost of retrofitting the entire parking lot. For more information about this program or for ways your company can improve its drainage contact Pat Rector-Woods at

Tivoli Garden Complex

Rain Gardens were installed at The Tivoli Garden Apartment Complex, Parsippany-Troy Hills, Morris County, NJ in the summer of 2011. The Troy Brook is running just behind the row of cars parked in the picture below.

Garden boxes.
Placement of garden boxes to prevent erosion and capture stormwater runoff. Photo courtesy Pat Rector-Woods, October 2011.
Rain garden.
Rain Gardens capturing roof runoff from a garden apartment complex. Photo Pat Rector-Woods, Rutgers Cooperative Extension Environmental and Resource Management Agent Morris/Somerset Counties. October 2011.