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<br />. . APR 1214 '94 1213: 35PM PLNG DIV OMAHA DIST ACOE <br /> <br />P.6 <br /> <br />~.. <br /> <br />. <br /> <br />Appendix A <br />SCOPI OJ' WOU <br /> <br />COLORADO HYDROLOGY KaNUAL <br /> <br />August 1992 <br /> <br />The Colorado Hydrology Manual is proposed for completion <br />within 12 months. The scope of work for this manual was designed <br />to accommoaate availaDle fiscal year 1992 funding. Because of the <br />limited funds available at this time for development of the manual, <br />this effort will focus on compilinq existing information only, with <br />emphasis on providing procedures to establish flood peak <br />discharges. The manual will define hydrologic models which are <br />applicable for Colorado streams and will outline acceptable <br />procedures and limits for input parameters to be used in those <br />procedures. preparing a more comprehensive hydrology manual, one <br />that would involve the development of new information such as case <br />studies, would take more funds and more time and could be <br />considered as a follow-up effort in the future. <br /> <br />The corps will perform the tasks identified below and prepare <br />a report. entitled "Colorado Hydrology Manual." The manual will <br />present gUidelines ana procedures for performing hydrologic <br />analyses that are satisfactory to the Colorado Water Conservation <br />Board (CWCB). In the development of the manual, the Corps will <br />reference applicable methods and procedures of its sister aqencies- <br />-the Soil Conservation Service, the U. s. Geological Survey, and <br />the Federal Emergenoy Management Ageney. <br /> <br />TASKS: <br /> <br />I. Define Climatic/Hydrologic Regions of Colorado <br />A. Parameters tor defining regions and crit.eria for <br />each paramet.er <br />B. Description of each reg-ion and map showing <br />geographic limits ot each region <br /> <br />II. StUdy Gaged Streams <br />A. Assuring the correct region tor ,a particular basin <br />~. Analyzing the gage record <br />. Methods to expand the data population <br />. Procedure for filling qaps in the data <br />population <br />. Evaluating larqe flood flows <br />. Computing skew coefficients <br />C. considering al ternati ves or supplements to qag'e <br />analysis <br />D. Synthesizing the results <br />E. Using regional methods and regression equations <br /> <br />Appendix A <br />