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.. • _ � • <br />SCOPE OF SERVICES <br />For <br />Bosley Wash, Mesa County, Colorado <br />Drainageway Master Planning <br />Preliminary Drainage Design <br />Ffoodplain Delineation <br />(RFP NIDR-71-00) <br />1. AREA <br />The study area for the Bosley Wash Basin are shown on the attached Exhibit A shall include <br />the following approximate miles on the main stem(s) and tributaries: <br />Approximate <br />Drainase�av Stream Miles <br />Boslev VVash 3 to 4 <br />Stub Ditch lto 2 <br />Tota.l Miles: <br />COIJNTY will provide base topographic mapping with planimetrics of the study area to be <br />completed at a scale of 1:1200 and a contour interval of '/� meter. Mapping for both the study <br />can be provided on 22" � 34" plan and profile mylar sheets and in electronic form compatible <br />with AutoCad Version 14.0 or later format. Mesa County's Contact: Rick Corsi (a� Mesa <br />Countt� 970-244-1796 for ma.pping details. <br />2. SCOPE OF SER��ICES <br />A. OVERVIEW Maior Drainagewav and Floodplain Risk PlanninQ. The proposed work <br />shall include but not be lunited to, the compilation of existing data, necessan� field <br />work, development and consistent evaluation of all reasonable altemates so that the <br />most feasible dr aina�a e, erosion control, and flood control plans can be determined and <br />justified and delineated the 100- vear floodplain for the AREA. Consideration shall be <br />given to costs and benefits (including intangible benefrts in an approximate and <br />reasona.ble manner, where feasible reduced to a dollar value and appropnatel�� <br />explained and justified); existing and proposed land uses; existing and proposed <br />drainage svstems; l�,own drainage or flood problems; laiown and anticipaxed erosion <br />problems; right-of-way requirements; open space and wildlife habitat benefits; <br />Appendix 1 to Contract C150050 <br />