Anchorage Canal Watershed Assessment & Pollution Control
Location: South Bethany, Delaware
Client: Center for Inland Bays
Pre-construction view of turf-lined ditch
JMT teamed with the Center for Watershed Protection (CWP) to develop a stormwater retrofit strategy to reduce pollution in the highly urbanized Anchorage Canal Drainage Area and independently prepared design plans and construction oversight for the first two implementation projects within the watershed.
JMT, in partnership with the Center for Watershed Protection (CWP), worked with our client and other local partners to identify, prioritize, and develop conceptual pollution control measures for the drainage area to the Anchorage Canal. The team developed a watershed assessment and analyzed conceptual pollution and stormwater control strategies for the watershed to help meet the TMDL regulations and the PCS for the Inland Bays.
JMT-CWP worked with property owners, property owner associations, and government agencies to create a step-by-step strategy for implementing the pollution control measures, including identification of funding sources, to contribute to water quality improvement.
We summarized the results of the watershed assessment and public outreach efforts in a technical strategy report submitted to the project partners. Opportunities for various conceptual measures were identified and quantified with regard to the costs and pollutant removal benefits for each of the proposed projects.
Two initial implementation projects were chosen and JMT was selected to prepare final design plans. Funding for the projects came from grants that were obtained with assistance from both CWP and JMT. The first project involved the design and construction management as part of the JMT-led design-build process. The practices that were designed include wet swales, curb openings, biofiltration swales, infiltration pits and filter strips. JMT worked closely with stakeholders in development of the plans and coordination of landscaping design and construction. The second project involved the design and construction management of the retrofit of grassed median swales along State Route 1 into bioretention facilities.
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