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Peetwood Park Stream Improvements

Peetwood Park Stream Improvements. City of Mission Hills, Kansas. Project Issues. Eroding banks Causing historic trees in Peetwood Park to fall into Brush Creek Increasing sediment in Brush Creek Threatening gas main

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Peetwood Park Stream Improvements

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  1. Peetwood Park Stream Improvements City of Mission Hills, Kansas

  2. Project Issues • Eroding banks • Causing historic trees in Peetwood Park to fall into Brush Creek • Increasing sediment in Brush Creek • Threatening gas main • Mission Hills Channel Masterplan predicted meander would move through much of Peetwood Park

  3. Project Features • Stream was moved to stable alignment • Stable meanders • Grade controls/riffles • Flood bench • Pervious concrete tree wells • Stacked stone tree wells • Partially funded by KDHE grant and Johnson County SMAC • Water quality and geometry monitoring for 10 years

  4. Project Challenges • Harsh winter delayed construction • Wetter than average spring resulted in 50-year and 25-year flood events on project prior to vegetation • Flood events and delay in planting resulted in delayed plant establishment

  5. Project successes • Channel geometry was stable during flood events • Vegetation establishment is nearly 90% this spring • First post-construction water quality sampling was completed in April • Springs entering channel providing ideal wetland conditions

  6. Brush Creek Prior to Construction

  7. General Layout

  8. Channel Construction

  9. Channel Construction

  10. Pervious Concrete Wall During Construction

  11. Stacked Stone Tree Well

  12. Stacked Stone Tree Well

  13. Completed Project Looking Upstream

  14. Looking Downstream

  15. Downstream End of Project

  16. Vegetation and Pervious Concrete Wall

  17. Questions?

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