Bristol & Mavelle Park/Lynmar Basin Stormwater Project

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Consultation has concluded.

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.

Consultation has concluded.

  • September 21 - City Council Presentation

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    Staff will present the refined concept to the City Council at their September 21st meeting. Staff will make a recommendation and City Council will make a decision.

    We'll share the refined concept with you on this webpage about a week before the September 21st meeting.

  • Refining the concept design

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    Thank you for your input. We're using what we heard to refine the concept design. We plan to share a refined concept design with you in September on this project webpage.

  • What we heard

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    Thanks for your input on the initial concepts.

    This is what we heard:

    • General support for the primary benefits - stormwater runoff collection and flood risk reduction.
    • General support for the secondary benefits – habitat enhancements, park improvements, and educational opportunities.
    • Preference for the concept that shows the path following the treeline along Lynmar Lane on the east edge of the park.
    • Support for the path alignment in concept #2 because it preserved valued open play space.
    • A 5-foot wide trail is preferred over an 8-foot wide trail.
    • No support for a retaining wall.
    • Desire for the planted area to look deliberate, with a recommendation to give the natural planting area a visual edge, perhaps with a mowed border.
    • Desire for tall trees and flowering trees, shrubs, and plants.
    • Desire to save trees along the edges and plant new trees as much as possible.
    • Most, but not all, supported removing trees and shrubs in the low portions of the park to accommodate a lowered, planted area.


    Your input on the initial concepts is welcome through August 6th. We'll use the input to refine the concept design.

  • Join Us

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    We'll be in the park this evening to seek your input on two concept layouts for a reimagined Bristol & Mavelle Park.

    Not planning to attend the meeting in-person? A copy of the initial concept layouts can be found here.

    You can submit your input any of the following ways:

  • Community Meeting - July 13th

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    An in-person community meeting will be held at the park, July 13th from 5:30-7:00PM. We will share initial design concept ideas and seek your feedback.

  • Planning for an in-person meeting

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    With the loosening of restrictions and new guidance from the CDC, we think we can safely meet in-person outdoors. We're planning to share a couple concept designs at an outdoor meeting in the park in the first part of July. We'll also provide an online opportunity to review and provide feedback.

  • Thanks for connecting with us!

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    People seemed eager to see what a project here might look like. We have some general ideas and now that we've had a chance to hear from you, we're ready to start drawing up a conceptual plan. Then we'll share a draft with you and seek your feedback.

    We heard that this space is used for unstructured open play like golfing, football, whiffle ball, and sledding, as well as for passive recreation like walking, dog walking, viewing open green space, and occasional picnicking.

    We heard;

    • Keep it green
    • Keep it open
    • Enhance stormwater management
    • Enhance the natural resources
    • Protect high value trees and plant additional trees where you can
    • Protect people from flooding
    • Enhance the nature aesthetic

  • Photos

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    supporting image

    Check out some photos taken by your neighbor, Sam, of the temporary "Lake Bristol", as he calls it. You can find them in the photos section. Thanks for sharing, Sam!

    Have photos of your own? We'd love to see them! Upload to the Maps tab or email Jess at JWilson@EdinaMN.gov.

  • Flood Risk Map

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    Curious about the flood risk where you live? Check out this flood risk interactive map.

    You'll also be able to see the storm sewer network to get a feel for the infrastructure buried underground that moves surface water from this neighborhood to Lake Edina, and eventually to Nine Mile Creek.

    Visit www.EdinaMN.gov/flooding for resources including actions you can take to reduce your exposure and vulnerability to flooding.

  • Share your thoughts - online, in person, or both!

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    We'll be in the park tomorrow, April 20th from 4-5:30pm to learn more from you about current uses, desires for the future, and concerns about a potential project.

    Can't make it? You can participate online by completing the survey, asking a question, dropping a pin on the map, submitting an idea, or giving us a call.

    We'll provide a summary of what we heard later this week.