Bristol & Mavelle Park/Lynmar Basin Stormwater Project

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The Lynmar Basin is a low-lying, open space that currently briefly detains stormwater before it makes its way to Lake Edina and eventually Nine Mile Creek through storm sewer pipes. The location was identified as an opportunity to better manage stormwater as part of a larger effort to improve downstream water resources.

The retrofit project will better utilize the space to capture and clean more stormwater than it already does today. The existing dry pond area will be expanded and deepened to promote stormwater infiltration. The infiltration basin will be planted with native trees, shrubs, and forbs.

The project benefits include;

  • Less polluted water entering Lake Edina and downstream water resources
  • Reduced flooding in the South Cornelia neighborhood
  • Enhanced natural resources, including improving pollinator habitat
  • A portion of the space kept open for passive recreation, and a new walking path

This project is done in partnership with the Nine Mile Creek Watershed District.

The Lynmar Basin is a low-lying, open space that currently briefly detains stormwater before it makes its way to Lake Edina and eventually Nine Mile Creek through storm sewer pipes. The location was identified as an opportunity to better manage stormwater as part of a larger effort to improve downstream water resources.

The retrofit project will better utilize the space to capture and clean more stormwater than it already does today. The existing dry pond area will be expanded and deepened to promote stormwater infiltration. The infiltration basin will be planted with native trees, shrubs, and forbs.

The project benefits include;

  • Less polluted water entering Lake Edina and downstream water resources
  • Reduced flooding in the South Cornelia neighborhood
  • Enhanced natural resources, including improving pollinator habitat
  • A portion of the space kept open for passive recreation, and a new walking path

This project is done in partnership with the Nine Mile Creek Watershed District.

  • Gobble gobble

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    Turkeys are checking out the basin stepping stones.

    August 2023

    August 2023

  • Grow in

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    Plants are growing in nicely.

  • Planting is nearly complete

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    The planting is nearly complete. There are a few more perennial species to go in, and the trees that will go down the center of the berm are scheduled for early June.

  • Construction Update - May 2

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    Stepping stone install.

  • Native seeding and planting extent

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    The native vegetation will soon be going into the Lynmar Basin. We kept a 6’ strip of turf grass around the edges, but the other turf grass (within the native planting area) needed to be removed with herbicide in order to allow the native seed to grow. The native seeding area is shown in green in the drawing below. Everything outside of this green will stay as turf grass.

  • Spring work begins

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    Crews are eager to get on site as soon as the weather allows

    You'll see some equipment and limestone blocks arriving on site in the next week or two for the crew to set stepping stones through the basin and some rock outcroppings.

    Plugs and trees will be delivered and installed before the end of May.

  • Construction Update - November 23

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    The site has been closed up and cleaned up for the year. Crews will be back in spring to do restoration and planting. The limestone outcroppings and stepping stones installations have been delayed to spring.

  • Construction Update - November 9

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    Crews are working this week to get concrete poured before the weather turns.

  • Construction Update - October 27

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    Construction of the sand trenches is complete. Crews are transitioning to the storm pipe work in the street at Lynmar Lane.

    In the first part of November Lynmar Lane will be restored and a concrete sidewalk will be installed. You'll also see the limestone stepping stones and outcroppings at the basin going in.

  • Construction Update - October 5

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    The majority of excavation is complete. Crews are now working on installing the sand trenches at the bottom of the basin for stormwater infiltration.

Page last updated: 03 Aug 2023, 12:27 PM