New Search
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 />Cemen# Concrete {P_C.C.) streets-and aNeys shall confiorm #o the following requirements: <br />'i . Minimum width of pavement cuts in P.C:C. streets and alleys shall be three (3) fee#. <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 />pavemen# or seven (7) inches, whichever is greater. Where the existing pavemen# <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 shay be used: Except of existing expansion joints, the new. patch <br />shall be tied into the existing pavement byfully 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 consolidate 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 7 through 20 given in section 3.13 above, work within <br />Asphalt Cement Concrete (A.C.) streets and aNeys shall conform to the following <br />U#ility & R/W Permit Policy 20 '12/01197 <br />