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MODIFIED TYPE 'B' MANHOLE <br />TRENCH DETAIL <br />#8 Stone <br />Geotextile (Typ.) in <br />Accordance With <br />INDOT Standard <br />Specification 918.03 <br />Overlap, X <br />DXXXX <br />Smooth Interior <br />Perf. Pipe (Typ.) <br />Standard Manhole <br />Ring and Cover or <br />Inlet Casting <br />Manhole Type B <br />See SB Std. 3-2 <br />DDia. ofPer. PipeDDia. ofPer. PipeSmooth Interior <br />Perf. Pipe (Typ.)3-2" Dia. Weep Holes Required <br />8" O.C. Centered on Storm Sewer <br />#8 Stone, See <br />Trench Detail (Typ.) <br />Geotextile (Typ.) in Accordance With <br />INDOT Standard Specification 918.03 <br />7'-0" <br />D, Pipe Size (in)X (in) <br />12 (Min.) 12 <br />15 15 <br />18 18 <br />24 241'-0"Max.D Dia. Tee <br />D Dia. Cap <br />1 1 2" Stainless Steel <br />Straps (3 Req'd.) <br />Top of Stone of Upstream <br />End of Inlet Pipe <br />1 2"x4" Stainless Steel Expansion <br />Anchors (6 Req'd.) w/3 1 2" Min. <br />Embedment <br />Treated Wood Blocks <br />6x6x28 (3 Req'd.) <br />Do Not <br />Compact <br />6/26/18 <br />CITY OF SOUTH BENDItemRevision <br />STANDARD <br />EFFECTIVE DATE: <br />REF STD SPEC SEC <br />APPROVED/REVISED BY THE BOARD OF PUBLIC WORKS <br />STANDARDS FOR DESIGN <br />AND CONSTRUCTION <br />Kara M. Boyles, Ph.D., P.E. Date <br />PERFORATED PIPE DETAIL 3-8 <br />3-2, 3-3 <br />June 26, 2018 <br />SECTION 3 - STORM <br />NOTES: <br />1. This system is not approved for installation under street pavement. <br />2. Perforated pipes are not permitted within wellhead protection areas. <br />3. Stone size to be dependent upon design requirements. <br />4. Do not compact walls of trench.