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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