1011-006 Competine Creek Watershed Final Report

(2013) 1011-006 Competine Creek Watershed Final Report. Agriculture and Land Stewardship

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Abstract

The Competine Creek watershed is a 24,956 acre sub-watershed of Cedar Creek. The creek traverses portions of three counties, slicing through rich and highly productive Southern lowa Drift Plain soils. The watershed is suffering from excessive sediment delivery and frequent flash floods that have been exacerbated by recent high rainfall events. Assessment data reveals soil erosion estimated to be 38,435 tons/year and sediment delivery to the creek at 15,847 tons/year. The Competine Creek Partnership Project is seeking WIRB funds to merge with IDALS-DSC funds and local funds, all targeted for structural Best Management Practices (BMPs) within the 2,760 acres of High Priority Areas (HPAs) identified by the assessment process. The BMPs will include grade stabilization structures, water and sediment basins, tile-outlet terraces, CRP, and urban storm water conservation practices. In addition, Iowa State University Extension-Iowa Learning Farm is investing in the project by facilitating a crop sampling program utilizing fall stalk nitrate, phosphorous index, and soil conditioning index testing. These tests will be used by producers as measures of performance to refine nutrient and soil loss management and to determine effective alternatives to reduce sediment and nutrient delivery to Competine Creek.

Item Type: Departmental Report
Keywords: Wateshed Improvement Review Board, WIRB, water quality, watersheds, Skunk River, Wapello County, Wapello Soil and Water Conservation District, Jefferson County, Keokuk County, Wapello County
Subjects: Natural resources and environment > Water resources > Water quality
Natural resources and environment > Water resources > Watersheds
ID Code: 21277
Deposited By: Jerome Neppel
Deposited On: 22 Feb 2016 13:10
Last Modified: 24 Feb 2016 14:29
URI: http://publications.iowa.gov/id/eprint/21277