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~.B.1 Portlan Cement Concrete Streets AIIe sand Drivewa s <br /> <br /> err <br /> lin addition tog neral requirements 1 through 20 given above, work within Portland <br /> dement Concr to (P.C.C.) streets and alleys shall conform to the following requirements: <br /> 1~. Minimu width of pavement cuts in P.C.C. streets and alleys shall be three (3) feet. <br /> ~ Unless therwise approved, replacement of the full panels affected shall be <br /> required on sidewalks and driveways. <br /> P.C.C. i utility trench patches shall be placed to a depth matching the existing <br /> 'I paveme t or seven (7) inches, whichever is greater. Where the existing pavement <br /> is P.C.C over Cement Treated Base (C.T.B.) or Asphalt Treated Base (A.T.B.), <br /> i replace ent depth shall be the combined depth of the P.C.C. and C.T.B. or A.T.B. <br /> Where t e replacement P.C.C. on the outside edge of an alley abuts A.C. a <br /> minimu of 24 inches of A.C. shall be removed to allow sufficient room for the <br /> ' placem nt of the alley concrete forms and proper compaction of asphalt restoration. <br /> Where t e alley outside edge abutting material is P.C.C., a full length expansion <br /> ' joint sha I be placed. <br /> 4~'. Steel rei forcement which is required to be used in all P.C.C. street, alley and <br /> drivewa utility trench patches shall be No. 4 bar twenty-four (24) inches on center <br /> in both t e longitudinal and traverse directions. A minimum of two parallel bars in <br /> each dir ction shall be used. Except at existing expansion joints, the new patch <br /> shall be ied into the existing pavement by fully inserting the reinforced steel into <br /> drilled h If inch diameter by three (3) inch deep holes in the adjoining existing <br /> paveme t. Splices in the reinforced steel required to be made shall have an <br /> 1 i overlap fat least twelve (12) inches. <br /> 5 Utility tre ches patched with P.C.C. shall be kept free of traffic or other detrimental <br /> tres ass throu h use of suitable barriers and other traffic control devices for a <br /> p 9 <br /> minimu period of seven (7) days. An alternative using 9.0 sacks of portland <br /> it cement er cubic yard of concrete allows the traffic to be returned after a minimum <br /> period o (3) days. <br /> 6 Paveme t cuts encountering P.C.C. overlaid by asphalt concrete may be replaced <br /> by full d pth asphalt concrete. <br /> 7 Internal ibration shall be used to consolidate P.C.C. which is being placed in <br /> depths g eater than seven (7) inches. <br /> 3 <br /> I <br /> 3,B.2 As halt ement Concrete Streets - <br /> ~1r~ addition tog neral requirements 1 through 20 given in section 3.B above, work within <br /> ',Asphalt Cemen Concrete (A.C.) streets and alleys shall conform to the following require- <br /> Utility & R/W Permit olicy 19 06/01/97 <br /> 3 <br /> <br />