Silver Lake Water Quality Improvements Project

The City has partnered with the Riley Purgatory Bluff Creek Watershed District to improve and stabilize a ravine that flows into Silver Lake.

Image showing the Silver Lake project area

  1. Matt Petite

    Engineering Technician/ Construction Manager
    Phone: (952) 227-1166 Cell: (612) 358-7085

  2. Joe Seidl

    Water Resources Engineer
    Phone: (952) 227-1168

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The project is located in northeast Chanhassen, off of Pleasant View Road in Pleasant View Preserve. The project involves ravine stabilization and improvements, including check dams leading into Silver Lake. The check dams will be reinforced with iron enhanced sand filters. As the water filtrates in the check dam, the iron in the sand allows for additional phosphorus removal from the stormwater. A cross section of one of the check dams can be found below.

image showing the cross section of a check damAdditionally, the project would include minor street and stormwater improvements to Pleasant View Road adjacent to the ravine. The overall goal of the project is to stabilize the eroded ravine, reduce phosphorus loading and thus improve the water quality in Silver Lake.

The project is currently in construction phase.

Project Updates

December 8, 2021

Work has been completed for the season with the vast majority of the required effort being done and traffic control has been picked up. Restoration and remaining punch list work will take place in the spring.

Here is the project timeline:

Traffic control will be put in place on 10/15.
Erosion control and Tree removals – 10/15 and week of 10/18
Storm sewer work (pipes/manholes) – week of 10/18
IESF Check dams – week of 11/8
Grading and site prep – week of 11/15
Restoration – week of 11/15

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Construction StartOctober 15, 2021
Construction EndNovember 24, 2021