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Southwest - ValleyFloor_TellurideStreamRestoration_Final Report
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Southwest - ValleyFloor_TellurideStreamRestoration_Final Report
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Last modified
2/7/2017 2:24:54 PM
Creation date
2/7/2017 2:24:26 PM
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WSRA Grant and Loan Information
Basin Roundtable
Southwest
Applicant
Valley Floor Partners
Description
Valley Floor Restoration Reach 1
Account Source
Statewide
Board Meeting Date
3/16/2016
Contract/PO #
CTGG1 2016-1888
WSRA - Doc Type
Final Deliverable Documents
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RESULTS <br /> Material Totals etc Associated with CWCB Funded"Tasks <br /> Task Item Description Quantities Unit <br /> 1 Channel Excavation 28,630 CY* <br /> 2 Total Riffle/Pool Features 19 <br /> 3 Im ortT pe M Riprap for Bank Stabilization and Cutoffs 825 CY <br /> 4 Type A Bank Stabilization 590 LF* <br /> 4 Type B Bank Stabilization 875 LF <br /> SUBTOTAL 1,465 LF <br /> Seed Nix of.Native Grasses and Forbs Used for Revegetatian 230 LBS <br /> Length of New Channel 4,250 Fl- <br /> *CY—cubic yards,LF—linear feet <br /> CONCLUSIONS AND DISCUSSION <br /> On October 16, only eight hours after a date projected more than one year before,the <br /> excavator removed the final scoops of material from the new channel and allowed the river <br /> to start a slow release into its new course. It was an incredible moment, anticipated by <br /> some of us for over a decade.As the old channel dried up,we spent the day moving as many <br /> fish as possible into the new channel. Unscientific counts at a little over 200 small trout <br /> reaffirmed that the channelized section was severely degraded. <br /> Using soils excavated from the new channel work began immediately to refill the old <br /> channel with a natural combination of uplands and wetlands to accommodate flows from <br /> known springs. Due to higher-than-expected ground and surface water flows seeping into <br /> the old channel contractors sculpted a surface flow path when refilling the old channel, <br /> allowing the water to flow downstream into the new channel.We will continue to monitor <br /> these flows,and determine if additional plantings are needed in the old channel to blend <br /> the landscaping into its surroundings.The project budget did not include imported <br /> vegetation for any part of the project. <br /> Immediate overall project objectives were met. The project was on time even after the late <br /> start, and on budget for the tasks budgeted. Goals of using the flow of the river to continue <br /> to sculpt and shape the new channel and not impede its natural functions are being realized, <br /> even with late fall/winter low flows. Improvements to the sewer line and tailings <br /> remediation should improve and protect long-term water quality. Few complaints were <br /> received during construction, and students were enthusiastic during tours and gained a <br /> better understanding of the local ecosystem.Animal tracks indicate that wildlife was <br /> initially curious and checked out the new channel,while a small beaver family created a <br />
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