SITE DESIGN STORMWATER DETENTION STRATEGIES

 

 

Strategy

 

Increases

Soil Storage

Capacity

 

Decreases

Impervious

Cover

 

Collects/

Detains

Roof

Runoff

 

Collects/

Detains

Street

Runoff

 

Collects/

Detains

Yard

Runoff

 

Individual

Residential

Scale

 

Neighborhood

Scale

 

Commercial/

Civic

Scale

 

Expense

Rating

*

 

Effectiveness

Rating

**

 

Sources

 

Bioswales

 

 

 

X

 

X

 

X

 

X

 

X

 

X

 

$$

 

H

 

Metro Seattle, 1992

 

Checkdams/small basins

 

 

 

X

 

X

 

X

 

X

 

X

 

 

$$

 

H

 

Tom Richman & Associates, 1997. pp. 56.

 

Cistern from downspout

 

 

 

X

 

 

 

X

 

 

X

 

$

 

H

 

Konrad, et al. 1995. C-1.

Tom Richman & Associates, 1997. pp. 52.

 

Concave planting areas

 

 

 

X

 

X

 

X

 

X

 

X

 

X

 

$-$$

 

H

 

Konrad, et al. 1995. C-2.

Tom Richman & Associates, 1997. pp. 55.

 

Curb/swale system

 

 

 

 

X

 

 

X

 

X

 

X

 

$$

 

H

 

Li, et al. 1998.

Tom Richman & Associates, 1997. pp. 42.

 

Deck over permeable surface

 

 

X

 

 

 

 

X

 

 

X

 

$-$$

 

H

 

Konrad, et al. 1995. pp. 15.

 

Detention ponds

 

 

 

X

 

X

 

X

 

X

 

X

 

X

 

$$-$$$

 

H

 

Konrad, et al. 1995. pp. C-2.

Schueler, et al., February 1997, pp. 429.

 

Driveway paving only

under wheels

 

 

X

 

 

 

 

X

 

 

 

$-$$

 

H

 

Tom Richman & Associates, 1997. pp. 50.

 

Drywells and infiltration tanks

 

X

 

X

 

X

 

 

X

 

X

 

 

X

 

$$

 

H

 

Konrad, et al. 1995. B-2.

Tom Richman & Associates, 1997. pp. 52.

 

Infiltration and

dispersion trenches

 

X

 

 

X

 

X

 

X

 

X

 

X

 

X

 

$-$$

 

H

 

Konrad, et al., 1995. B-2.

 

Parking alternatives

 

 

X

 

 

X

 

 

 

X

 

X

 

$$-$$$

 

H

 

Schueler, et al., 2000. p. 647.

 

Plant Trees

 

X

 

X

 

 

 

 

X

 

X

 

X

 

$

 

H

 

Tom Richman & Associates, 1997

 

Preserve existing native

Vegetation

 

X

 

X

 

 

 

 

X

 

X

 

X

 

$

 

H

 

Konrad, et al. 1995. pp. 7

 

Replace lawn &

impervious w/ plantings

 

X

 

X

 

 

 

X

 

X

 

X

 

X

 

$-$$

 

H

 

Ross & Dillaha, 1993.

Schueler, Fall 1995. p. 311.

 

Soil amendment,

mulching

 

X

 

 

 

 

 

X

 

X

 

X

 

$

 

H

 

Schueler, et al., 2000. pp. 666.

 

Concave lawn

 

 

 

X

 

 

X

 

X

 

X

 

X

 

$$

 

M

 

Konrad, et al. 1995. C-2.

Tom Richman & Associates, 1997. pp. 55.

 

Crushed gravel

 

 

X

 

 

 

 

X

 

X

 

X

 

$-$$

 

M

 

Schueler, 1995. p. 238

 

Green roofs

 

 

X

 

X

 

 

 

 

 

X

 

$$-$$$

 

M

 

Peck and Callaghqan, 1999.

City of Seattle Flow Report (draft), 2000.

 

Pervious concrete &

porous asphalt

 

 

X

 

 

 

 

X

 

X

 

X

 

$$-$$$

 

M

 

Cahill, 1994.

 

Planting at dripline

 

 

 

X

 

 

 

X

 

 

X

 

$

 

M

 

Tom Richman & Associates, 1997. pp. 53.

 

Roof gardens

 

 

X

 

X

 

 

 

X

 

 

X

 

$$$

 

M

 

Peck and Callaghqan, 1999.

City of Seattle Flow Report (draft), 2000.

 

Street alternatives

 

 

X

 

 

 

 

 

X

 

X

 

$$$

 

M

 

Tom Richman & Associates, 1997. pp. 37.

 

Terracing sloped yards

 

 

 

X

 

 

X

 

X

 

X

 

X

 

$$

 

M

 

Konrad, et al. 1995. F-4.

 

Tilling soil

 

X

 

 

 

 

 

X

 

X

 

X

 

$

 

M

 

Konrad, et al. 1995. pp. 12.

 

Patterson and Bates, 1994.

Randrup, 1998.

 

Schueler, et al., 2000. p. 666.

 

Cul de sac

planting circles

 

 

X

 

 

X

 

 

 

X

 

X

 

$$-$$$

 

M-L

 

Tom Richman & Associates, 1997. pp. 45.

 

Grasscrete/

turf block

 

 

X

 

 

 

 

X

 

X

 

X

 

$$

 

M-L

 

Booth, Leavitt, and Peterson, 1996.

 

  • * Expense Rating: $ = low, $$ = medium, $$ = high ($-$$ = a range reflects different project size)
  • ** Effectiveness Rating: Based on a review of available research supporting the strategy, whether it has been tested within the Pacific Northwest or elsewhere, and its implementability and suitability for use at varying urban scales. (Low, Moderate, High)
    •