Belmar Demonstration Rain Garden

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History:

The Belmar rain garden was a collaborative project between the Belmar Borough Environmental Commission and Master Gardeners of Monmouth County. Technical assistance was provided by faculty and staff from the Rutgers Cooperative Extension Water Resources Program and Rutgers Cooperative Extension of Monmouth County. The rain garden is situated in a park and walking trail that surrounds Silver Lake and is frequented by citizens of the adjacent residential community. The purpose of installing the rain garden was to divert a portion of the runoff from the road into a vegetative system rather than directly into the storm sewer that discharges into Silver Lake. It is also intended to serve as an example for homeowners in the area to replicate on their own properties.

Type of Runoff Managed:

This rain garden manages stormwater from a portion of North Lake Drive.The drainage area was estimated by observing the direction of flow over the road and along the curb/gutter system. It was determined ahead of time that a curb cut would be required. Based on the slope of the roads, the drainage area was determined to be that which conveyed water to the point of the curb cut from all directions.

Installation:

After obtaining support from the Mayor of the Borough of Belmar and the Borough of Belmar Council and being awarded a grant from Verizon, the Belmar Environmental Commission worked alongside the Master Gardeners from Rutgers Cooperative Extension of Monmouth County to plan and install the rain garden. The first step of the rain garden installation was to perform the heavy excavation and curb cut. A small stone-lined ditch was created to connect the curb cut with the rain garden. A berm was formed on the side of the rain garden closest to the lake. The final size of the rain garden was 275 square feet in area and 6 inches in depth. The excavation was generously performed by the the Belmar Borough Public Works Department. Master Gardener volunteers performed fine excavation by hand, planting, and mulching. The Belmar Boy Scout Troop also assisted with the rain garden planting.

Plant List

Aster
Blue Flag Iris
Coastal Sweet Pepperbush
Cranberry Viburnum
Inkberry Holly
Joe Pye Weed
Purple Coneflower
Pussy Willow
River Birch
Seaside Goldenrod
Tussock Sedge
Wild Bergamot

Maintenance:

The rain garden is maintained by the Master Gardeners of Monmouth County.

Watershed-Based Economy Mapping
updated 03/2012 by rutgers.water.resources.program