1014-008 Walnut Creek Watershed Final Report

(2014) 1014-008 Walnut Creek Watershed Final Report. Agriculture and Land Stewardship

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Abstract

In 2004, Walnut Creek was placed on the 303d list of Impaired Waters due to a low biotic index (lack of aquatic life) during IDNR stream sampling events. Sediment originating from agriculture, streambank erosion, and channelization were listed as the most likely sources impacting aquatic life. In an effort to address these concerns, a preliminary study was completed of the multi-county watershed to identify priority areas. A Watershed Development & Planning Assistance Grant was then funded by the IDALS-DSC to conduct a detailed assessment of these prioritized sub-watersheds. The impending assessment of the watershed and the stream corridor revealed ample opportunities to address gully, sheet and rill erosion while addressing in-stream water velocity issues that plagued the riparian corridor. A comprehensive plan was developed comprised of a variety of best management practices to address the identified concerns. In 2009, this plan was submitted to the WIRB Board by the East Pottawattamie and Montgomery SWCDs and $489,455 was awarded to address concerns identified during watershed assessment inquiries. Despite adverse weather conditions, which has hampered conservation construction recently, this project has held fast to pre-project goals due to the fortitude of the project sponsors and the overwhelming participation by the watershed landowners. Unfortunately, state budget shortfalls are bringing project progress to a halt. As specified in the original WIRB funding request, practice funding for Year 3 was to come from the Division of Soil Conservation’s Watershed Protection Fund (WSPF). Due to Iowa’s budgetary restraints, the Walnut Creek WSPF application, which was submitted this spring, was not funded since no new applications in the state were funded. If funded again, this grant will serve as the critical step in continuing what is destined to be a true watershed success story.

Item Type: Departmental Report
Keywords: Walnut Creek, Watershed Improvement Review Board, WIRB, water quality, watershed, Montgomery County, East Pottawattamie County, Montgomery Soil and Water Conservation District, East Pottawattamie Soil and Water Conservation District, SWCD, West Nishnabotna River Basin
Subjects: Natural resources and environment > Water resources > Water quality
Natural resources and environment > Water resources > Watersheds
ID Code: 21215
Deposited By: Jerome Neppel
Deposited On: 22 Feb 2016 13:10
Last Modified: 22 Feb 2016 13:10
URI: http://publications.iowa.gov/id/eprint/21215