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i3~ .1 Portland ement Concrete Streets Alle sand Drivewa s <br /> In ddition to ge eral requirements 1 through 20 given above, work within Portland <br /> Ce ent Concret {P_C.C.) streets and alleys shall conform to the following requirements: <br /> 1,'. Minimum idth of pavement cuts in P.C.C. streets and alleys shall be three (3) feet. <br /> Unless of erwise approved, replacement of the full panels affected shall be <br /> required o sidewalks and driveways. <br /> 2. P.C:C. in tility#rench 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. ver Cement Treated Base (C.T.B.) or Asphalt Treated Base (A.T.B.), <br /> replacem nt depth shall be the combined depth of the P.C.C. and C.T.B. or A.T.B. <br /> 3. Where th replacement P.C.C. on the outside edge of an alley abuts A.C. a• <br /> minimum f 24 inches of A.C. shall be removed to aAow sufficient room for the <br /> placemen of the alley concrete forms and proper compaction of asphalt restoration. <br /> Where th alley outside edge abutting material is P.C.C., a full length expansion <br /> joint shall a placed. <br /> 4. Steel rein orcement which is required to be used in all P.C.C. street, alley and <br /> driveway tility trench patches shall be No. 4 bar twenty-four (24) inches on center <br /> in both th longitudinal and traverse directions. A minimum of two parallel bars in <br /> each dire tion shall be used. Except at existing expansion joints, the new patch <br /> <br /> ' shall be ti d into the existing pavement by fully inserting the reinforced steel into <br /> drilled hal •inch diameter by three (3) inch deep holes in the adjoining existing <br /> pavemen .Splices in the reinforced steel required to be made shall have an <br /> overlap o at least twelve (12) inches. <br /> 5. Utility tre ches patched with P.C.C. shall be kept free of traffic or other detrimental <br /> trespass rough use of suitable barriers and other traffic control devices for a <br /> minimum eriod of seven (7) days. An alternative using 9.0 sacks of portiand <br /> cement p r cubic yard of concrete allows the traffic to be returned after a minimum <br /> period of 3) days. <br /> 6. Pavemen cuts encountering P.C.C. overlaid by asphalt concrete may be replaced <br /> by full de th asphalt concre#e. <br /> 7. Internal v bration shall be used to consolidate P.C.C. which is being placed in <br /> depths gr ater than seven (7) inches. <br /> 3. .2 As halt ement Concrete Streets <br /> Inj 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 - <br /> Utility 8~ R/W Permit olicy 20 12/01/97 <br /> <br />