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PREFACE This report includes information on the flood hazard areas along Plateau Creek, Grove Creek, and Buzzard Creek in the vicinity of Collbran, Me';a County, Colorado. Because of the potlilnt i a I for flood damages, dlilta i led flood hazard stud i es havlil been recogn i zed as an essent i a litem in guiding the use of flood plains. The purpose of this report is to provide adequate mapping and data for implementing flood plain management programs. Floods during the period of 1982-84 changed the channel a Ii gnment and geometry of Plateau Creek at some I ocat ions. This factor, along with ,the need for' detailed flood plain information beyond past study I imits, prompted this study. Included in the report is information on pas~: floods, the potential for future floods, flooded area maps, water surface profiles, select'ld c,.-oss sections, p"ak discharge data, and recommendations fo,.- reducing potential flood damages. The So i I Conservat i on Sel'v i ce condud:ed the techn i ca I studies and prepared the report. These services were carried out in accordance with the Plan of Work of August, 1988. The assistance and cooperation provided by the Colorado Water Conservation Board, Mesa County, and the Town of Collbran are appreciated and gratefully acknowledged. Much of the cross section data was field surveyed in 1989 by the County and the Town of Collbran. This field data ''''as used in conjunction with other cross section data d"veloped by MSM Consultants, Inc. in a 1,)79 study for the Federal Insurance Administration. The MSM data was subsequently used ,n a 1981 Flood Insurance Study for the Town of Co i I bran. The hydrology used in the Flood Insurance Study was considered adequate for this current study and therefore IS included herein. The field survey, hydrologic, hydraulic, and other' pertinent data and computations are on fi Ie with the U.S. Department of Agriculture, Soil Con"ervation S~'rvice, E)~,5 Parfet St., Lakewood, Colorado 80215-5517, telephone (303l 236-2900. Additional copies of this report may be obtained from the Co I orado Water Conservat on Board 0'" the So i I Conse rvat i on Ser-vice.