Project Profile:

National Cathedral

Project Summary

Stormwater detention system. Runoff from the higher level roadway and parking lot enter into the Rainstore3 chamber and slowly exfiltrate out. Rainstore3 was used at this site for minimal site disturbance - 94% efficiency made for a smaller excavated area.

Address

3101 Wisconsin Avenue,(Massachusetts and Wisconsin Ave NW), Washington, DC 20016-5098

Install Size

200 cu meters ( 20 stacks of 10 units high)

Designer

Thomas Cahill and Associates, Environmental Consultants. 104 South High Street West Chester, PA 19382 • (610) 696-4150

Contractor

N.A.

Project Gallery

Stormwater Storage was installed at the National Cathedral using Rainstore3.

Workers slid the cells down two planks into the excavated area.

Subsurface-Water Storage was installed at the National Cathedral using Rainstore3.

Stormwater enters the drainage system, into the inlet shown here, from the road way and parking lot and is conveyed to the Rainstore3 chamber.

Underground-Water-Retention Storage was installed at the National Cathedral using Rainstore3.

The inlet device shown here will regulate water flow and sediment entering the Rainstore3 chamber.

A Rainwater-Retention System was installed at the National Cathedral using Rainstore3.

An overview shot of the project. Notice that the Rainstore3 cells had been shipped four units high and reassembled into eight unit high cells on site. The paper separated the four unit high cells. When assembling cells, adequate care must be taken to ensure all 36 cylinders completely connect to the adjacent cell’s cylinders.