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water resources | I-495 / Kenilworth Interchange and Median Gateway LID Project
I-495 / Kenilworth Interchange and Median Gateway LID Project,
Prince George's County, MD
AMT provided planning, design, contract documents, and permitting services required to create a gateway beautification project along the I-495/Kenilworth Avenue Interchange. The project's goals included landscape beautification and a spectacular streetscape to create a sense of arrival to Prince George's County. The design incorporated Gateway signage and Low Impact Development practices to improve existing water quality along Kenilworth Avenue Corridor and the Kenilworth Avenue/I-495 interchange ramps (4).
These low impact development practices included filter swales, bioretention facilities, and native and adaptive plant species. LID facilities were located where they could most benefit existing water quality treatment, as well as be aesthetically pleasing and 
fit into the proposed landscaping. The LID's utilized existing inlets and drainage structures to convey treated water quality runoff. One of the Bioretention Facilities was designed to contain a water quality monitoring station that contained an inflow and outflow measuring device and rainfall measuring gauge.
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