Updating Culvert and Storm Drain Design and Installation Methods
Author: Reginald Arno (DDOT)
The District Department of Transportation (DDOT) wishes to share its experience in mitigating floods from Combined Sewer Overflow in the middle of two densely populated residential neighborhoods. During the Summer of 2012, the Bloomingdale and LeDroit Park neighborhoods in the Northwest Washington DC experienced severe flooding several times. The cause of the flooding was attributed to overflow from Combined Sewer manholes and sanitary sewer laterals.
To reduce the impact from future occurrences, DDOT was tasked to develop and implement short and mid-term solutions to control the overland run-off. In November 2013, DDOT completed the short term solutions of installing Permeable Brick Alley with a 36" underground detention tank, Bioretention cell, new catch basins, and 60" underground detention tank in order to reduce and control the overland flow. The combination of bioretention cell, permeable alley and 60" detention tank, stores approximately 100,000 gallons.
The implementation of Mid–term solutions will begin in April 2014. With input from the residents, DDOT will design and construct various Green Infrastructure Elements (permeable pavement, bioretention cells, and plantings). In the later years, DDOT will focus on the neighborhoods uphill of Bloomingdale and LeDroit Park neighborhoods.
The presentation will focus about community outreach and the approach to install neighborhood wide Green Infrastructure
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How to Cite: Arno, R. (2014) “Controlling Combined Sewer Overflow within Bloomingdale/LeDroit Park Communities”, National Hydraulic Engineering Conference 2014. 1(2014).