LID Improvements Lee Elementary School

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Presentation transcript:

LID Improvements Lee Elementary School Lauren Goulding, Ben Steger, Austin Henson, Ben Beverly

Site Representation Lee Elementary Residential area, with several houses in flood plain

Site Representation

Site Process Runoff from Lee Elementary flows across open land directly into Waller Creek Erosion of compacted dirt along creek bank

Evaluation Haphazard drainage at Lee Elementary allows for increased runoff velocity Downstream homes in floodplain are at severe flood risk

Changes - Lee Elementary Preserve function of space: play areas & soccer field Reduce Peak Discharge Reducing unchecked flow down creek banks

HEC-HMS Results for 25-Year Storm Curve number: 96 100% Impervious cover Drainage Area of 1.623 Acres

Impact Constructed wetlands will: Slow down water, reduce erosion Aesthetic improvements Lessen likelihood of downstream flooding Remove BOD, suspended solids, and nitrogen

Recommendation Swales and pipeline Flood-resilient wetlands Per EPA Design Manual Runoff area too large for rain garden Home buyouts

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