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<br />SECTION 205 RECONNAISSANCE STUDY <br />FOR FLOOD CONTROL <br /> <br />HENSON CREEK AT LAKE CITY, COLORADO <br /> <br />Paraqraph <br /> <br />TABLE OF CONTE~T~ <br /> <br />1. <br />2 . <br />3 . <br />4. <br />5. <br />6. <br />7. <br />8. <br />9. <br /> <br />10. <br /> <br />11. <br /> <br />12. <br />13 . <br /> <br />Study Authority <br />Location and Description <br />Scope of stuc',y <br />Study Participants and Coordinat.ion <br />Previous Stu6ies and Flood Control Improvement:s <br />Flood Problen,s <br />Hydrology <br />Flood Damages <br />Plan Formulat.ion <br />a. Flood Cor..trol Measures <br />b. Alternatjve Plans <br />Environmental Evaluation of the Levee Al:ternat:ive <br />a. Potential Impacts <br />b. Conclusic.ns of Environmental Considerati.ons <br />Economics of Levee Alternative <br />a. Costs <br />b. Benefits <br />c. Benefit-cost Ratio <br />views of Non-Federal Sponsor <br />Conclusions <br /> <br />~IST OF TABLJ;;R <br /> <br />Paqe <br /> <br />1 <br />1 <br />2 <br />2 <br />2 <br />3 <br />4 <br />6 <br />7 <br />7 <br />10 <br />11 <br />11 <br />13 <br />14 <br />14 <br />14 <br />16 <br />16 <br />16 <br /> <br />1. Henson Creek Annual Peak Flows 5 <br />2. Damage Inventory Summary 8 <br />3. Without-Project Damage Analysis Summary 8 <br />4. Estimated Levee Cost for 100-Year Level of Protection 15 <br /> <br />~IST OF PLATER <br /> <br />1 Location and Vicinity Map <br />2 Location Map, Flood Plain Map <br />3 Flow-Frequency Curve <br />4 Frequency-Damage Curve <br />5 Structural Alternative, Plan Vielol <br />6 Structural Alternative, Typical Secti.on <br /> <br />LIST OF APPENDIXES <br /> <br />A Letter of Request for Study from the Sponsor <br />B Basis of Desjgn and Cost Estimate <br /> <br />i <br />