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Abstract ................................................................................................ ............................... 3 <br />Introduction .......................................................................................... ............................... 3 <br />CurrentConditions ............................................................................... ............................... 4 <br />TheAnimas River in Durango ......................................................... ............................... 4 <br />SmelterBoating Park ....................................................................... ............................... 5 <br />Geomorphic conditions at Smelter ....................................................... ............................... 6 <br />Current Flows at the Proposed Boating Park Location ................... ............................... 7 <br />Animas River User Groups ................................................................ ............................... 10 <br />TheCity of Durango ...................................................................... ............................... 10 <br />Associated Design Criteria ......................................................... ............................... 1 I <br />Environmental Groups/Fishing ........................................................ .............................12 <br />AssociatedDesign Criteria: ...................................................................................... 13 <br />CommercialRafting ....................................................................... ............................... 13 <br />Associated Design Criteria: ...................................................................................... 13 <br />RecreationalBoater ........................................................................ ............................... 14 <br />Associated Design Criteria: ...................................................................................... 15 <br />Top - Level Boater ........................................................................... ............................... 15 <br />Associated Design Criteria ......................................................... ............................... 16 <br />Retailers / Residents ......................................................................... ............................... 16 <br />AssociatedDesign Criteria: ...................................................................................... 17 <br />Spectators....................................................................................... ............................... 17 <br />Associated Design Criteria: ...................................................................................... 17 <br />Other............................................................................................... ............................... 17 <br />Associated Design Criteria: ...................................................................................... 18 <br />ProposedImprovements ..................................................................... ............................... 18 <br />Process........................................................................................... ............................... 18 <br />SmelterBoating Park ..................................................................... ............................... 20 <br />Construction issues: .......................................................................................................... 21 <br />U- Structures ....................................................................................... ............................... 23 <br />LowFlow ................................................................................... ............................... 26 <br />HigherFlows .............................................................................. ............................... 27 <br />Depthof flow ................................................................................. ............................... 28 <br />Approximate dimensions and functionality of U- Structures designed for the Animas <br />River................................................................................................... ............................... 28 <br />Necessary Flows for the Durango Boating Park ................................ ............................... 34 <br />Conclusion......................................................................................... ............................... 42 <br />References: ........................................................................................................................ 44 <br />Appendix 1. Site selection DSP for the Durango Boating Park ....... ............................... 45 <br />Appendix2. Power Index .................................................................. ............................... 47 <br />Appendix 3. Preliminary Design Plan for the Durango Boating Park ............................. 52 <br />Appendix 4. Land Ownership Information ....................................... ............................... 54 <br />Appendix 5. Site map Animas River: Smelter ................................... ............................... 56 <br />2 <br />