Portland Capisic Pond Rehabilitation

Portland, Maine

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Owner

City of Portland
55 Portland Street
Portland, ME 04101
Nathaniel Smith, Project Engineer

Project Type

Dredging / Environmental

Engineer

Woodard & Curran
41 Hutchins Drive
Portland, ME 04102
207-774-2112

Start / Finish

May 15, 2016 - November 1, 2016

Description / Significance

This project involved dredging the largest freshwater body of water in Portland for the first time in 60 years, including the restoration of the area with three different planting zones to provide diverse habitat for different types of birds and wildlife.  The pond was restored to be visually attractive from the walking trails of Capisic Pond Park,  provide an improved habitat for wading birds and other species, and promote the long-term health of the pond by minimizing cattail growth.

 

Scope of work included:

  • Construction of cofferdam and gravity bypass system to divert normal stream flows to drain the pond.
  • Relocation of approximately 250 snapping turtles and painted turtles.
  • Excavation of 16,000 cubic yards of sediment from the bottom of the pond.
  • Deployment of 13,000 square yards of erosion control matting.
  • 8,000 linear feet of Filtrexx barrier sock filled with growing medium.
  • Over 2529 wetland plants and several trees installed.