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<br />:l <br /> <br />- ~.. <br /> <br />i <br />~. <br /> <br />. <br /> <br />. <br /> <br />CONSULTING <br />~ ENGINEERS <br />~ !~!!~~.~~~...~NGINEERING COMMNY, INC. <br /> <br />MIDWEST DISTRICT OFFICE <br />1717 5 OEll^IRE STREET I DENVER. COLORADO 110222 <br />PHONE (300) 7~1-llS8(I <br /> <br />July 12, 1978 <br /> <br />Mr. Nick Ioannides <br />Supervisory Water Resources Engineer <br />Department of Natural Resources <br />State of Colorado <br />l313 Sherman Street <br />Denver, CO 80203 <br /> <br />Dear Mr. Ioannides: <br /> <br />In response to recent conversations with you and Mr. John Fetcher of the <br />Upper Yampa River Water Conservancy District, International Engineering <br />Company (IECO) is pleased to submit this proposal for geologic and engineer- <br />ing review of the Yamcolo Project. <br />" <br />We understand that your primary concern is to verify the long-term stability <br />of the dam abutments and the reservoir shoreline slopes. A secondary interest <br />expressed by Mr. Fetcher was in a "constructibility" review of the overall <br />design to minimize construction cost and time. Under these circumstances, <br />we recommend a staged review which will establish a logical sequence for our <br />work and that will minimize the cost by limiting services to those essential <br />to an adequate review. <br /> <br />I <br /> <br />Phase I, Geology Review, is intended to establish the important geologic char- <br />acteristics of the abutments and reservoir shoreline with respect to long- <br />term stability. The conclusions reached will determine the need for Phase II. <br />The geology review will be performed by Dr. Charles S. Robinson, consulting <br />engineering geologist of Golden, Colorsdo. Dr. Robinson is well qualified to <br />perform this evaluation as he has some thirty years of geologic experience <br />in the Rocky Mountain region and is particularly familiar with the area in <br />which the project is located. He has pnrticipnted with IEGO on past projects <br />in Colorad0. <br /> <br />I <br /> <br />I <br /> <br />Phase II, Design Review, is intended to evaluate the compatibility of the <br />dam design with any geologic problems defined in Phaae I and to develop <br />specific recommendations for corrective design modifications, if considered <br />necessary. This phase will be performed primarily by Mr. J. L. Jordan, prin- <br />cipal engineer in IECO's Denver office. Mr. Jordan has more than twenty years <br />of engineering experience, predominantly in design, construction, and safety <br />review of embankment dams. <br /> <br />I <br /> <br />I <br /> <br />I <br />