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Section 34 Swale

The Section 34 Swale BMP Project in Southfield aimed to address flooding issues by reconstructing ditches into a swale system to manage stormwater runoff into the Rouge River. The project, funded by a $206,250 grant and $68,750 in matching funds, included the creation and re-grading of swales to reduce peak flow and improve water quality. Best management practices implemented resulted in a peak flow reduction of 0.697 cfs, contributing to better control of runoff and water flow rates.

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N V Sumanth Vallabhaneni
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32 views1 page

Section 34 Swale

The Section 34 Swale BMP Project in Southfield aimed to address flooding issues by reconstructing ditches into a swale system to manage stormwater runoff into the Rouge River. The project, funded by a $206,250 grant and $68,750 in matching funds, included the creation and re-grading of swales to reduce peak flow and improve water quality. Best management practices implemented resulted in a peak flow reduction of 0.697 cfs, contributing to better control of runoff and water flow rates.

Uploaded by

N V Sumanth Vallabhaneni
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Clean Michigan Initiative City of Southfield

Nonpoint Source Grant Contact: Tom Vukonich


1999-0033 Telephone: (248) 354-4841
Fax: (248) 354-9174

Section 34 Swale BMP Project


October 1, 2000 through March 30, 2002

Section 34 in the City of Southfield is located in the Main 1-2 sub-watershed of the Rouge river
watershed. The River Rouge watershed itself is comprised of approximately 300,000 acres. The area drains 64
acres and is made up primarily of single family homes. Stormwater was conveyed from the area by a series of
ditches to a storm sewer at Lahser Road, which passed the drainage district at its west boundary. Residents had
complained about flooding in the area, and the City evaluated installation of an enclosed drain system to convey
stormwater from the area to eliminate the flooding. The City chose to reconstruct the ditches to form a swale
system. This decision was made to prevent excessive flow in the Rouge River, which would occur if enclosed
drains were allowed to freely empty into the river with no prior detention. Excessive flow destroys aquatic and
riparian habitat, increases streambank erosion, and causes flooding in downstream sections of the river.

Grant Amount: $ 206,250


Match Funds: $ 68,750 TThis vegetated swale decreases the volume and
rate of stormwater discharged from the road
Total Amount: $ 275,000 and into the Rouge River.

Best Management Practices:


• 6,453 Linear Feet of grassed
swale draining 64 acres
• 355 feet of existing swale re-graded Another
• 1,064 linear feet of dry swales created section of
completed
Annual Load Reductions: swale,
• Peak Flow reduced by 0.697 cfs. helping to
control
runoff and
I&E Activities: (concurrent but outside water flow
the scope of the grant) rates.
• Survey of Residents’ Satisfaction
• Two Fact Sheets
• Log of Citizens’ Complaints

1/24/05

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