C150377 Feasibility Study - Laserfiche WebLink

Home Browse Search

Emergency Loan Application and Feasibility Study CHURCH DITCH WATER AUTHORITY this application, the Church Ditch Water Authority can continue to provide a steady source of drinking water to the cities of Arvada, Broomfield, Northglenn and Westminster. There continues to be a small amount of agricultural use along the Church Ditch. Most users are watering livestock and irrigating grass and hay crops with water from the Church. This project will allow these users to maintain their livelihood, and continue to raise their crops and livestock. Repairs made to the ditch mentioned in this project will remedy erosion problems, caused by the flooding, along the ditch. Repairing minor sloughs will keep sediment transport to a minimum. Because the Church Ditch delivers water to Standley Lake and Big Dry Creek, controlling sedimentation by repairing sloughs will reduce the amount of sediment that is added to Standley Lake and Big Dry Creek and in turn, protecting water quality in those water bodies. The major repair that is proposed at the intersection of Leyden Creek and the Church Ditch will replace soil lost to the extremely high flow of water that was present in Leyden Creek during the September flooding events. By repairing this section continued erosion of the stream bank will be reduced, and sediment transport minimized. The proposed repairs in this section will also provide a "spillway" type of structure that will allow water from Leyden Creek to flow over the ditch, protecting the streambed from further damage from high flows. This structure will dissipate flow and help keep the water from eroding the stream. This will protect vegetation that is essential for structural support of the streambed as well as reducing the amount of sediment and soil that is washed down the stream and into other water bodies. Permits Two permits are required for the Leyden Creek Crossing. Preliminary information has been obtained from Jefferson County officials for a county floodplain permit and the application is in process with an estimated submittal date of October 31s`. The Church Ditch is also seeking a US Army Corps of Engineers (USACE) Regional General Permit: GP 96-07 for Flood-Related Activities in Colorado. Permit documentation was submitted to the USACE on October 16th, in accordance with GP 96-07 and the September 13, 2013 USACE memorandum in reference to POST-FLOOD and FLOOD PROTECTION PERMITTING UNDER SECTION 404 OF THE CLEAN WATER ACT.