Laserfiche WebLink
<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Geotechnical Engineering Investigation <br /> <br />The outlet works consist of a reinforced concrete intake with 3/4 inch steel pipe grating <br />trash racks, a reinforced concrete pressure conduit, a central reinforced concrete valve tower, and <br />a downstream gravity flow conduit. <br /> <br />The project is currently operated under a reservoir gage height restriction of 64.5 feet, <br />imposed by the Colorado State Dam Safety Division. This restriction was imposed as a result of <br />seepage daylighting along the downstream face, <br /> <br />C. Scope of Services <br /> <br />The scope of work for this geotechnical investigation included a site reconnaissance, <br />subsurface exploration, laboratory testing, engineering analysis of the field and laboratory data <br />and preparation of this report. The data obtained and the analyses perfonned were for the <br />purpose of providing a stability and seepage evaluation of the embankment under different <br />reservoir levels and different phreatic surface elevations. <br /> <br />This report has been prepared for Santa Maria Reservoir Company in accordance with <br />generally accepted geological and geotechnical engineering practices for the specific use in the <br />stability and seepage analyses and control of seepage at Continental Dam in Hinsdale County, <br />Colorado. No other warranty, either expressed or implied as to the professional advice provided, <br />is made. The analysis and conclusions contained in this report are based on the site conditions as <br />they were understood at the time of our reconnaissance and field work; and on review of available <br />reports and available geologic maps. It should be recognized that some limitations are inherent in <br />the evaluation of subsurface conditions and that certain conditions may not be detected. Changes <br />in the infonnation or the data gained from these sources or in the proposed land use could result <br />in changes in our conclusions. In the event that there are any changes in the site conditions, the <br />conclusions and recommendations contained in this report shall not be considered valid unless 1) <br />the changes are reviewed by Harza Northwest, Inc. and 2) conclusions and recommendations <br />presented in this report are modified or verified in writing. Reliance on this report by another <br />must be at their own risk. We do not accept consequences for unconsulted use of segregated <br />portions of this report. <br /> <br />Continental Dam <br /> <br />Page 2 <br />