Laserfiche WebLink
CODDLE CREEK RESERVOIR <br /> <br /> CABARRUS COUNTY <br /> <br /> ENGINEERING REPORT ON SPILLWAY ALTERNATIVES <br /> <br /> EXECUTIVE SUMMARY <br /> <br /> I. GENERAL <br /> <br /> Based on subsurface conditions discovered during the geotechnical inves- <br /> tigations by Law Engineering, Inc., it was determined that the principal <br /> spillway should be located as far to the east as possible so that the <br /> spillway would be founded in natural undisturbed material. Four alterna- <br /> tive spillway alignments were evaluated and preliminary cost estimates <br /> developed. These are su~narized below: <br /> <br /> Alternative Estimated Construction Cost <br /> I $6,960,800 <br /> 2 $6,562,600 <br /> 3 $7,720,400 <br /> 4 $7~677,000 <br /> <br />II. SELECTED ALTERNATIVES <br /> <br /> Alternates 3 and 4 were eliminated due to the higher construction costs <br /> associated with each. Alternatives i and 2 were further evaluated to <br /> refine the cost estimates and optimize the selection. A brief <br /> description of each follows: <br /> <br /> ALTERNATIVE 1 - 300-FOOT GATED CREST AT ELEVATION 646 PLUS <br /> FOOT EMERGENCY SPILLWAY iT 655. FUSE-PLUGGED TO ELEVATION 652. <br /> (SEE FIGURE 1) <br /> <br /> ( <br /> <br /> <br />