Laserfiche WebLink
<br /> .. <br /> ,- <br />lage of <br />lrden as <br />illus- <br />the <br />'gO <br />>crt <br />ch- <br />ltutes <br />.able <br />he <br />s. <br /> <br />:in <br /> <br />~[.!.;-'~~~~~!l:?i~~~~~~-.n:'i~_'~~~~'~ <br /> <br />M __..~._ <br /> <br />_._~. <br /> <br />~- <br /> <br />--_._~- <br /> <br />000896 <br /> <br />1.5 <br /> <br />~d~:.08 financing, detailed design engineering, preparation of contract docu- <br />~~t. 4nd actual construction of improvements. <br /> <br />I.) Funding <br /> <br />Funding for the preparation of the plan have been arranged by the ewCB <br /> <br />troe the Colorado Department of Highways and the Colorado Department of Local <br /> <br /> <br />~!f.ir8 through two separate contracts with the City of Ouray. <br /> <br />1.4 Scope of Work <br />A Scope of Work was prepared by the ewCB in January 1981. Due to a very <br />linited study budget, the original Scope of Work had to be reduced and that <br />part of ~~~ work relating to Sky Rocket Creek was removed. A brief descrip- <br />tion of the work relating to the plan developed for Portland and Cascade <br />Creeks is presented in the following paragraphs. <br />The study began with the collection and review of available data. SLA <br />was aided in the task by the ewCB, City of Ouray, Colorado State Division of <br />Highways, County ot Ouray and local citizens. Based upon initial review of <br />the available information, the extent and causes of the flooding and debris <br />problems were qualitatively evaluated and the plan for a field trip to <br />investigate the situation further was developed. The field trip was taken en <br />August 4 and 5, 1982, by a Senior Hydraulic Engineer and Senior Geologist/ <br />Geomorphologlst from SLA. <br />Following the fleld trip, the hydraulic and hydrologic analysis phase of <br />the project began. This included estimation of debris loadings for various <br />frequency storms and calculation of the flumes' capacity to carry the debris. <br />Theso tasks were performed to quantify problems associated with the flumes and <br />to locate areas where improvements could be made. Also included in the <br />hydraulic analysis was an estimation of forces associated with debris <br />impinging on structures. <br />After completing the analysis phase, various alternatives for attacking <br />the debris and flooding problem were studied. The alternatives were screened <br />and the most feasible studied further. Based on rough estimates of cost and <br />effectiveness of the alternatives, recommendations for the plan of improvement <br />were made. <br /> <br />" <br />