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20()10 <br />MANHOLE RING & COVER TO BE <br />DEETER NO. 1030 OR EQUAL, WITH <br />MACHINED EDGES & MINIMUM WEIGHT <br />n X <br />IQ <br />z S MAN. <br />m <br />D <br />2 <br />z <br />co <br />91 <br />3" <br />USE DEETER NO. <br />1603 IRON STEPS <br />OR EQUAL <br />�c� <br />i� <br />I Q <br />e!! <br />CL <br />w <br />CL >- z <br />p Q Q <br />D N 0 <br />w <br />w <br />0 <br />Qz5 <br />J O <br />J N al: <br />Ll_aa_ <br />-�{ 6 :? <br />I <br />T <br />I NOT TO SCALE <br />"T "= 6" FOR 4' DIAMETER MANHOLE <br />"T "= 8" FOR 5" DIAMETER MANHOLE <br />CITY OF GRAND ISLAND NEBR. <br />ENGINEERING DEPARTMENT <br />SEE STANDARD PLAN NO. 130 -A <br />FOR DETAIL OF RING & COVER & <br />PLAN VIEW <br />USE ADJUSTING RINGS OR <br />2 TO 5 CENTERS OF BRICK <br />IN ADJUSTING RING TO GRADE <br />MANHOLE NOTES <br />1. ALL MANHOLES RINGS TO BE SET IN MORTAR. <br />2. INSIDE DIAMETER OF MANHOLES TO BE 4' -0' FOR PIPE <br />THROUGH 24'. 5' -0' FOR PIPE 27' THROUGH 36'. & 6' -0' <br />FOR PIPE 42' THROUGH 48' IN SIZE <br />3. 12' MINIMUM THICKNESS ADJUSTING RINGS UNDER MANHOLE <br />RING IS REQUIRED WHEN MANHOLE IS LOCATED IN ROADWAYS, <br />PARKING AREAS. SIDEWALKS. ETC. <br />4. PRECAST MANHOLE CIRCULAR SECTIONS TO BE PER A.S.T.M. <br />C- 478-680 <br />5. MANHOLE STEPS IN PRECAST MANHOLES TO BE GROUTED <br />WITH EXPANDING GROUT. <br />S. MANHOLE INVERTS SHALL BE POURED CONCRETE • <br />7. EXCEPT FOR DROP ASSEMBLY. THE CONSTRUCTION OF DROP <br />MANHOLES INCLUDING MATERIALS SHALL BE SIMILAR TO <br />THAT FOR A STANDARD MANHOLE <br />* ALL CONCRETE TO <br />- CONFORM TO DIVISION <br />.V.C. _ II CONCRETE PAVING <br />I;= SPECIFICATIONS. <br />w <br />w <br />N <br />u <br />Q <br />STRAP DROP STRUCTURE <br />TO MANHOLE WALL AT <br />3' -0" INTERVALS <br />WITH STAINLESS STEEL <br />ANCHORS & STRAPS. <br />I.D. <br />I.D. <br />"A" <br />INCOMING <br />DROP <br />PIPE <br />PIPE <br />MINIMUM <br />4" <br />4" <br />2' -0" <br />6" <br />1 6" <br />2' -0" <br />NOTE: <br />DROP PIPE ANY LARGER <br />THAN 6" CAN ONLY BE <br />INSTALLED IN A MANHOLE <br />WITH PERMISSION OF THE <br />PUBLIC WORKS DEPT. <br />MANHOLE SIZE MAY VARY. <br />DATE-4 -23 -91 INSIDE DROP MANHOLE I PLAN <br />DRN. BY. P.S. PRIVATE SERVICE LINES 129 -A <br />