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OEPARI(Y"NT OF PUBLIC VORKS <br />DRAINAGE PLAN SUBMISSION FORM <br />see Ordinance 514-18 <br />NAME OF APPLICANT �inguu". <br />ADDRESS OF APPLICANT C/0 Wigh <br />617 t-ledi <br />Everett. <br />SUBMITTED BY Wi,,h . ar <br />PROPERTY LOCATION 1710 Ptac <br />�ve,r-tt.. <br />ZONING OF SITE: <br />AREA OF CONTRIBUTING CATCHMENT: <br />RUNOFF COEFFICIENT: <br />PRE -DEVELOPMENT <br />POST DEVELOPMENT <br />DESIGN STORM: <br />Hall Jehovah's Witness (Central Congrega+r •ni <br />�P9D A. <br />and Hardt 2},_• <br />AREA OF SITE: n-rI n- <br />_ 0.45 <br />_0.85 <br />PRE -DEVELOPMENT FREQUENCY <br />POST DEVELOPMENT FREQUENCY <br />OURAIION <br />INTENSITY <br />TOTAL DESIGN RUNOFF FROM SITE: <br />BEFORE DEVELOPMENT <br />AFTER DEVELOPMENT <br />RUNOFF DIFFERENTIAL: <br />ADDITIONAL STORAGE DUE TO LAG TIME: <br />10 year <br />_ 25 year <br />20 mi n,jti=S. <br />1 " in tnr. <br />1.6 in. <br />c. feet <br />1 nnt, c. feet <br />57;, c. feet <br />-,7 c. Peet <br />DETENTION STORAGE PROPOSED: 629 c. feet <br />ORIFICE OPENING: <br />DIAMETER 3.34 inches <br />DISCHARGE "-�`l_ cubic feet per second <br />HEAD ^ '-' feet <br />OUTLET PIPE: <br />DIAMETER 8.0 inches <br />SLOFE t-() - feet per hundred feet <br />CAPACITY I ID cubic feet per second <br />A 25 year storm will prodpce 0.83 and an 8.0 inch pipe Q 1A56 slope will <br />carry 1.32 of'-, and therefpre the 8" pipe is adequate. <br />Signature of applicant ate <br />DEPARTMENT OF PUBLIC WORKS APPROVAL PLAN NO. <br />ON SITE DETENTION REQUIREMENTS: <br />DRAINAGE PLAN APPROVED BY: <br />c. feet <br />DATE: <br />