Tenn. Comp. R. & Regs. 1680, 1680-06, ch. 1680-06-01, 1680-6-1-.10, app 8
1. One-half of the traveled portion of the pavement must remain open to traffic at all times.
2. Existing pavements, buses, curbs and gutters and sidewalks shall be cut and brought to a neat line by mechanically sawing or by use of an air hammer. Expansion joints removed shall be replace.
1. If permanent pavement repairs cannot be made within two (2) days, then temporary replacement shall be made with 2 inches cold mix or hot bituminous seal coat over compacted crush stone.
2. Backfill for trenches within roadway areas shall be placed in 6 inch layers and each layer shall be thoroughly compacted by means of mechanical tamp. All concrete shall be Class "A".
3. Materials and workmanship shall comply with "Standard Specifications for Road and Bridge Construction" issued by the Tennessee Department of Transportation, March 1, 1981. All work is subject to inspection and approval by the Department of Transportation.
4. Trenches under roadways shall be backfilled to the base of the pavement or a minimum of 9 inches below finished grade, whichever is greater, with crush stone. Pavement will be removed for a minimum of one-foot on each side of the trench. The depth of the patch shall be the depth of the existing pavement or 9 inches, whichever is greater. The patch shall be finished so as not to leave a bump or dip in the finish grade. Pavement shall be replaced in kind as shown hence or as directed by the Regional Utilities Engineer.
Tenn. Comp. R. & Regs. 1680, 1680-06, ch. 1680-06-01, 1680-6-1-.10, app 8