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I <br />( <br />�_ <br />�. <br />'_ <br />�. <br />� <br />A 1-6 <br />S2 <br />Pipe Storage <br />100 1'ear Strom <br />+ 5096 <br />Leibold Watercraft Dealership <br />Storm Drainage Schematic <br />Drainage Basin # 1 <br />Basin Descriptions <br />a 1- 2 year undeveloped flow <br />a 2-10 year undeveEoped flow <br />a 3- 100 year undeveloped fbw <br />A4 -2 year developed flow <br />A5 - 10 year devebped flow <br />A6 - 100 year devebped fiow <br />A8 - 6 month undeveloped flow <br />S--( I Wetpond - <br />I Water Quality Tro�tment - <br />6 month & 2 Year Storm <br />�--- MH #1 Outlet = D1 + R1 � Com1 <br />� <br />MH#2 <br />Outlet = D2 + R2 =Com <br />City Street Sorm Drain System <br />Routing & Analysis <br />1. Run Waterworks for basin; 2, 10, & 100 year storms, undeveloped & <br />developed. Basins 1,2,3,4,5,6 & 8. Also Hyd 1-6 & 8. <br />2. Size orifice 2 yr � 50% for D1. Run Hyds 4-6 thru S1 & Com 1. Hyds 12, 13 & 14. <br />_ ---- _. __ . <br />3. Split R1 from Hyds 12, 13 & 14 to 15,16 & 17. <br />4. Size D2 to handle 2, 10 & 100 undev_elped release rates less that passed thru wet pond <br />Route Hyds15, 16 & 17 thru S2 & D2, Hyds 1 S, 19 &: 20. Add to S1 release to City syste <br />Set R2 to handle overflow_at 546.2 <br />Project Number: <br />Date: June 1996 <br />By: TMK <br />95-013 Two Rivers Engineering <br />P. 0. Bxx 339 <br />Darrington,WA 98241 <br />(360)436-1524 <br />