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3.B.1 Portland Cement Concrete Streets, Alleys and Driveways <br />in addition to general requirements 1 through 20 given above, work within Portland <br />Cement Concrete (P.C.C.) streets and alleys shall conform to the following requirements: <br />Minimum width of pavement cuts in P.C.C. streets and alleys shall be three (3) feet. <br />Unless otherwise approved, replacement of the full panels affected shall be <br />required on sidewalks and driveways. <br />2. P.C.C. in utility trench patches shall be placed to a depth matching the existing <br />pavement 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 />replacement depth shall be the combined depth of the P.C.C. and C.T.B. or A.T.B. <br />3. Where the replacement P.C.C. on the outside edge of an alley abuts A.C. a <br />minimum of 24 inches of A.C. shall be removed to allow sufficient"room for the <br />placement of the alley concrete forms and proper compaction of asphalt restoration. <br />Where the alley outside edge abutting material is P.C.C., a full length expansion <br />joint shall be placed. <br />4. Steel reinforcement which is required to be used in all P.C.C. street, alley and <br />driveway utility trench patches shall be No. 4 bar twenty-four (24) inches on center <br />in both the longitudinal and traverse directions. A minimum of two parallel bars in <br />each direction shall be used. Except at existing expansion joints, the new patch <br />shall be tied into the existing pavement by fully inserting the reinforced steel into <br />drilled half inch diameter by three (3) inch deep holes in the adjoining existing <br />pavement. Splices in the reinforced steel required to be made shall have an <br />overlap of at least twelve (12) inches. <br />5. Utility trenches patched with P.C.C. shall be kept free of traffic or other detrimental ¢ <br />trespass through use of suitable barriers and other traffic control devices for a <br />minimum period of seven (7) days. An alternative using 9.0 sacks of portland <br />cement per cubic yard of concrete allows the traffic to be returned after a minimum <br />period of (3) days. <br />6. Pavement cuts encountering P.C.C. overlaid by asphalt concrete may be replaced <br />by full depth asphalt concrete. <br />7. internal vibration shall be used to consolida#e P.C.C. which is being placed in <br />depths greater than seven (7) inches. <br />3.B.2 Asphalt Cement Concrete Streets <br />In addition to general requirements 1 through 20 given in section 3.B above, work within <br />Asphalt Cement Concrete (A.C.) streets and alleys shall conform to the following require- <br />Utility & R/W Permit Policy 19 06/01/97 <br />__ <br />