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Ba~ed on our survey of the area, we found a blockage of the <br />natural drainageway approximately 250 feet south of !56th <br />Avenue. Apparently the landowner constructed a driveway <br /> <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 />surveyed the entire drainage ditch as shown on Exhibit B and <br />found that there is a drop of approximately 15 inches from the <br />westerly culvert across !56th Avenue to the culver~ at the <br />intersection of Hematite Street. By installing a driveway <br />culvert and completing minor grading along the existing ditch, <br />the drainage outlet to this area can be restored. <br /> <br />iii. DESIGN CONSIDERATIONS <br /> <br /> Due to the limited scope of the feasibility, a hydraulic <br /> analysis of the area nor peak rates of discharge were not <br /> dete_--mined. The main scope of ~he study was to dete_~-mine a <br /> method of providing a drainage outlet for the area adjacent <br /> to !56th Avenue lying east of Ramsey Boulevard. This was done <br /> by su_~veying the existing ditch south of !56th Avenue and <br /> locating the blockages in the natural flow. <br /> <br /> <br />