5.8 Capital Improvement Program

Capital projects in the Six Mile Marsh Creek subwatershed include projects to improve water quality, including projects identified in the lakes TMDLs; stream restoration projects to repair erosion noted in the Upper Watershed Steam Assessment; and wetland restoration projects.

These projects and others identified below will progress the District toward achieving its various goals for the subwatershed.  This program is not a comprehensive list of all capital needs or potential projects within the subwatershed, and is limited by available financial resources and staff capacity to manage projects.  These priority projects are intended to:

  • Achieve nutrient load reductions to Halsteds Bay to prevent future listing as an Impaired Water that would require a TMDL study.
  • Progress improvements to water quality as identified in the TMDLs for Parley and Wassermann Lakes.
  • Stabilize and restore reaches of Six Mile Creek identified in the Upper Watershed Stream Assessment with the highest concentration of erosion issues and to improve biotic integrity.
  • Begin addressing the historic loss of wetlands in the subwatershed through restoration of degraded or drained wetlands.
  • Mitigate the impacts of future development on downstream resources.

These proposed projects emphasize the achievement of multiple objectives.  For example, stream restoration would not only stabilize streambanks and prevent further erosion, it would provide an opportunity to improve in-stream and buffer habitat, conserve existing high-value resources, and reduce sediment and nutrient transport downstream.  Wetland restorations would not only restore degraded or drained wetlands, they would provide an opportunity to improve downstream water quality, increase infiltration, improve habitat, and conserve existing high-value resources.