kansas river and missouri river wetland and Stream umbrella mitigation Bank Site 2 -
Leavenworth County, Kansas
The second restoration site established under the Kansas River and Missouri River Wetland and Stream Umbrella Mitigation Bank, this 199-acre mitigation site along Stranger Creek compensates for authorized impacts to wetlands and streams across most of northeastern Kansas.
Because this restoration site protects more than a mile of Stranger Creek on one side, Swallowtail has the opportunity to improve water quality and wildlife habitat in a watershed that is heavily impacted by agriculture. Historically, the habitat at the site would have consisted primarily of riparian forest with a mixture of forested, scrub-shrub, marsh, and wet prairie wetlands. The location was altered for agriculture by removing almost all of the riparian forests and converting the other habitats to row crop fields. A levee was built along the entire length of Stranger Creek which limited flooding of the site, and Brush Creek, a significant perennial tributary of Stranger Creek, was channelized and realigned. A small ephemeral stream was also impacted and became incised.
Swallowtail is addressing these impairments through the following activities:
Increasing floodplain flows across the site by breaching the farm levee along Stranger Creek in multiple locations
Restoring Brush Creek to its historical channel alignment and stable cross section
Relocating the ephemeral stream to a higher elevation to reconnect it to the floodplain with natural sinuosity and a stable cross section
Planting 87 acres of riparian forest
Restoring nearly 51 acres of emergent wetlands, 15 acres of forested wetlands, and 2 acres of scrub-shrub wetlands
Enhancing an additional 22 acres of existing wetlands
Restoring over 18 acres of buffers and uplands adjacent to wetlands