Bassett Creek Park Pond & Winnetka Pond Dredging Project Phase I: Winnetka Pond Dredging


Project Number: BCP-2

Project Status   |  Proposed

A feasibility study was completed in May 2017 and includes bathymetric surveys, wetland delineations, and sediment sampling including analyses for harmful contaminants in both Bassett Creek Park Pond and Winnetka Pond. The Commission approved the Engineer's recommendation to dredge only Winnetka Pond (with intent to dredge Bassett Creek Park Pond in a future year) to a depth of 6 feet; to install a native vegetative buffer around most of the pond, and to control the goose population at the pond. An open house and public input meeting was held in February 2017 for residents to learn more about the project and for BCWMC and city staff to hear concerns and answer questions. See the feasibility study for further details, maps, analyses, etc.

Project Funding   |   Not Grant Funded

Estimated project costs for the recommended alternative: include the following: Construction costs (including engineering, design, and construction contingency) are estimated at $913,000. 30-year annualized cost for pollutant removal is $956/lb total phosphorus and $27/lb total suspended solids based on professional judgement pollutant removal calculations. BCWMC capital projects such as this are typically funded through an ad valorum tax of all watershed residents levied by Hennepin County on the BCWMC's behalf. A maximum levy request of $1,000,000 which also includes feasibility study costs ($60,000) and BCWMC administrative costs ($27,000) was approved by the County in June 2017.

Project Description

This proposed project will have the following benefits:

  • Removal of 18,400 cubic yards of sediment from Winnetka Pond
  • Increased permanent pool volume to maintain flood control benefits
  • Increased sediment storage volume in pond resulting in reduced sediment and phosphorus loading to the North Branch of Bassett Creek and all downstream water bodies, including the Mississippi River including removal of an estimated 51.7 pounds of total phosphorus and 1,823 pounds of total suspended solids, annually (including modeled and professional judgement estimates)
  • Improved water quality from native vegetated buffer that will filter pollutants from storm water runoff
  • Improved habitat for wildlife and pollinators with native buffer
  • Improved water quality through nutrient and bacteria reductions from goose management

Project Announcements

The BCWMC is planning to hold a public hearing on this proposed project at its meeting on September 21, 2017. Check this page for further details closer to September or contact BCWMC Administrator, Laura Jester, to be added to an email list for notifications about this project.

 Detailed project map

More Information

Final Feasibility Study (no appendices)

Feasibility Study Appendices