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on our <br /> <br /> survey of the area, we found a blockage of the <br />nature! drainageway approximately 250 feet south of !56th <br />Aven~e. Apparently the landowner constructed a driveway <br />across the low area and did not install a culvert. This has <br />resulted in an increase in water levels by two feet. We also <br />su_~-v~yed the entire drainage ditch as shown on Exhibit B and <br />foun~ ~hat there is a drop of aooroximately.. !5 inches __om=- the <br />westerly culvert across !56th Avenue to the cu!ver~ at the <br />intersection of Hematite Stree~. By installing a driveway <br />cu!v~_-~ and completing minor grading along the existing ditch, <br />the ~rainage outlet to this area can be restored. <br /> <br />DESIGN CONSTDERATION$ <br /> <br />Due itc the limited scope of the feasibility, a hydraulic <br />analysis of the area nor peak rates of discharge were not <br />determined. The main scope of ~he study was to determine a <br />method of providing a drainage outlet for the area adjacent <br />to !$6th Avenue lying east of Ramsey Boulevard. This wa's done <br />by s~_--veying the existing ditch south of !56th Avenue and <br />locating the blockages in the natural flow. <br /> <br />3 <br /> <br /> <br />