Laserfiche WebLink
�- <br />Date 6/29/9� <br />CITY OF EVERETT PUBLIC WORKS <br />DRAINAGE CALCIAATION SUBMISSION F�2M <br />Project Name: BOYDEN 4 PLEX <br />Project Location: 801 HAWTHORNE STREET <br />Submitted By: R.L. MC DUFFY � ASSOCIATES, INC. <br />DI'ainage BaSin: COMBINED SEWER/ OUTSIDE DOWNTOUN <br />Pre-Development Design Storm (yr): 10 <br />Post-Development Design Stoim (yr): 10 J <br />Area of Site (ac): 0.22 AC. <br />Existing Slope of Site (X): lOX _ I <br />Existing Ground Cover <br />Woods/Forest (ac): p <br />Lawns/Landscaping (ac : �2 <br />Earth/Gravel (ac): � <br />Impervious (ac): � <br />Existing Run-Off (cfs): o.i� cFs <br />per acre n si rFc/ec <br />Proposed Ground Cover <br />Lawns/Landscap.ing (ac): 0.086 <br />A• y Earth/Gravel (ac): p <br />'�y Q Impervious (ac): 0.138 <br />ention Storage Required (cf/ac) <br />�„ Lawns/Landscaping (cf/ac): p <br />icoi� Q. Earth/Gravel (cf/ac): p <br />YstER��'_`�" Impervious (cf/ac): 764 <br />[xriAes �t/on/ f,y Tot�al Detention Storage Required <br />Lawns/Landscaping (cf): 0 <br />6�u/ry Earth/Gravel (cf): 0 <br />Impervious (cf): 105 <br />Total Storage Required c: 105 <br />