(Showing top & floor reinforcing) Finished Grade Elevation Heavy Type Cover & Frame Where dimension "L" or "W" is greater than 6' use 8" slab thickness. Concrete Riser (varies in height) Light Type Cover (2) Ⱦ3/4" HOLES ON R8 & Frame L 1/2" OPPOSITE TO T=Top Elevation #5 bars #5 bars EACH OTHER 6" L 6" 2 CONCEALED PICKS 6" #4 bars at 6" cts. in floor 24" 6" (Max.) #4 bars at 6" cts. in floor 1-1/2" 15" (Typ.) (Typ.) 1 24" DFI CASTING # H H (Max.) 3" W W Min. 2" Min. O.D. 2" Min. HUTCHINSON LID DESIGN FOR #5 bar in top #5 bars at 4" cts. in top STORM SEWER MANHOLES AND #4 bars INLETS #4 bars 6" Min. 6" 6" #5 Cross bars at 4" cts. in top #5 bars at 4" cts. # 1258 HEAVY B=Base Elevation L & W = O.D.+6" Min. PLAN (2) Ⱦ3/4" HOLES ON No Scale R8 1/2" OPPOSITE TO 4'-0" Min. EACH OTHER #4 bars SECTION bars to be placed at No Scale 6" centers each way in walls and floor MANHOLE CONSTRUCTION NOTES: All manhole construction shall be water tight. All precast concrete manhole sections shall conform to A.S.T.M. designation C-478. 6 ANCHOR LUGS Cement used in manhole walls to be Type II or Type V & shall conform to A.S.T.M. designation C-150. # 1257 HEAVY All reinforcing bars shall be Grade 60, deformed and shall conform to A.A.S.H.T.O. M 31-74. Welded wire fabric reinforcement shall conform to A.A.S.H.T.O. M55-73(A.S.T.M. 187-72). Compressive strength of concrete shall be not less than 4,000 p.s.i. Other pre-approved precast Manholes may be used in lieu of those shown on this sheet. Class I concrete (AE) to be used in reinforced sections. Bevel all exposed edges with a 3/4" triangular molding. In general, pipes will enter and leave the manhole at various positions. Where possible bend bars around pipes. Manhole opening and steps, where used, shall be placed to afford easy access to floor. Top reinforcing bars to be adjusted accordingly. All reinforcing bars shall be Grade 60, deformed and shall conform to A.A.S.H.T.O. M31-74. Light type manhole cover and frame castings shall be used between existing or future back of curb and property line. # 2015 LIGHT Heavy type Manhole cover and frame casting shall be used in existing or future pavement and existing driveways or # 1256 HEAVY entrances. HEAVY TYPE MANHOLE COVER LIGHT TYPE MANHOLE Concrete inverts required unless specified by the Engineer. & FRAME COVER & FRAME No. 3 No Scale No Scale Deformed 1" 11/16" 5/8" Steel Rod 1" 1" NOTE: CASTING NOTES Steps not to be used where 8-3/4" 1-3/8" height "H" is less than 4 feet. 10" Heavy type manhole castings are to be Deeter Foundry's 5/8" 3/4" #1256,#1257, #1258 or approved equal. Light type INSTALLATION: Steps may be 1/4" 1" driven into wet concrete wall A manhole castings are to be Deeter Foundry No. 2015 or during manufacturing or set with expanding grout. approved equal. Manhole frames and covers shall be manufactured from Gray Cast Iron conforming to 1 12/02/2014 Added inverts/ Added concrete riser JMS MEK Polypropylene Plastic: A.S.T.M. Designation A48,-Class 25B. The frame and NO. DATE REVISION BY APP'D Solid Outer Shell A cover shall be supplied with machined bearing surfaces 1-1/4" 12" Porus Mass so fitting parts will not rattle or rock under traffic. For all STORM SEWER SECTION A-A 1/8" castings grind all burrs smooth, thoroughly clean, then 1/4" MANHOLE Clay & Bailey Mfg. Co. 1-1/4" 1-5/8" apply shop coat of coal tar enamel. Dimensions and 1/4" 1/2" No 5104-000 or approved 1" weights of cast iron as shown on this sheet are minimum. STANDARD DETAILS equal. Larger dimensions and/or heavier weights of cast iron may DRAWN BY be used, if approved by Engineer. GTD 1/4" APPROVED BY STEP DETAILS JSP No Scale Sheet No. Date Standard Detail 10/22/2013 07 OF.