Hamilton Run Stream

Pangborn Park was developed in the early 1900s as a 7.6 acre recreational area including softball, tennis, sand volleyball and a man-made lake stocked for fishing.  The lake and adjacent Hamilton Run stream were “hardened” with manmade stone walls lining the stream and lane banks in the 1930s.

Hamilton Run Stream Restoration: BAI was responsible for the engineering design to remove the existing stone wall and restore the stream with natural techniques, native plants and trees.  The project used natural channel design to incorporate hard and bioengineered (natural materials and native plantings) stabilization techniques on the channel and stream banks, reconnect the floodplain, and provide self-sustaining riparian buffer and wetland improvements.  Project also involved major outfall stabilization, energy dissipation, flow diversion to Lake, shear stress and floodplain impact analysis,  waterway construction permit, -material handling (re-use/removal of materials), raising and widening of the stream using natural channel design techniques, aesthetic and aquatic habitat enhancement.

Pangborn Park Lake Retrofit:  BAI was responsible for the design to replace the deteriorated stone wall perimeter of the lake with natural self sustaining living shoreline and wetland areas.  Project involved conversion from permanent pool to shallow wetland with extended detention facility with forebay, dredging of accumulated sediments, shore and wetland establishment, material handling and permits, outfall structure, principle spillway and embankment improvements, ADA compliant access and circulation to park and fishing areas, Chesapeake Bay Trust Watershed Grant Program assistance, and Waterway construction permit.

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