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<br />.', <br /> <br />. . <br />GREAT DIVIDE ENGINEERING <br />AND SURVEYING <br /> <br />P. O. Box 605 404 N. 19th Street <br />Phone 303 275.8881 <br /> <br />Canon City, Colorado 81212 <br /> <br />PROPOSAL TO PROVIDE ENGINEERING SERVICES <br /> <br />jfff':?9~ <br />, '" ,- ,,0. ,... <br />, ....,.: " f> ,In <br />/ " '; '., j f::t <br />'i; S(p' ".("'---" <br />""" .8-82 <br />COtvs 0020-"- 1880 1 <br />~,;>V: ' ~~., , <br />"Ir,o " , , <br />" 'Iv ~'r <br />&0 <br />~09D <br /> <br />.:./ <br /> <br />'ITEM 1: This proposal is an addendum to an existing contract between the <br />ENGINEER and CITY of Canon City and COUNTY of Fremont, dated June, 1979. <br /> <br />ITEM 2: The ENGINEER agrees to furnish all personnel, equipment, and <br />supplies required to complete the engineering services shown in this pro- <br />posal for the fees indicated. <br /> <br />ITEM 3: The CLIENTS agree to employ the ENGINEER to complete a FLOODPLAIN <br />INFORMATION STUDY OF THE NORTHEAST CANON DRAINAGE AREA. The specific items <br />to be addressed in this study are detailed under Scope of Work. <br /> <br />ITEM 4: The Scope of Work as a minimum shall be defined as: <br />a) Field Reconnaissance and Surveys: Obtain field data necessary <br />to describe the hydrologic and hydraulic characteristics of the drainage <br />basin including photos and measurements necessary for calculating the <br />hydraulic capacity of the channel and other structures. <br />b) Hydrologic Analysis: Complete a detailed hydrologic analysis <br />to determine runoff volumes and flood discharge profiles for the 100 year <br />frequency, 24 hour duration storm, by developing synthesized runoff hydro- <br />graphs and incorporating basin characteristics. <br />c) Hydraulic Analysis: Perform hydraulic calculations to define <br />the water surface prOfile and floodplain boundaries for the 100 year storm, <br />given existing basin conditions. Flood elevations shall be calculated <br />using the HEC-2 computer program technique. <br />d) Flooded Area Maps: Flood profil es a long the study reaches shall <br />be shown on graph paper. The 100 year floodplain shall be delineated on <br />topographic maps, (1" = 200'). <br />e) Preparation of Report: The results of the floodplain information <br />study shall be documented in a study report. Three copies of the draft <br />report will be submitted for review with back-up material provided in a <br />Technical Addendum. <br />