View specifications for locating underground utilities on St. Clair County Highway right of way.
All pipe lines and/or cables or any buried utilities shall have a minimum cover of 30" except where crossing side drainage ditches where the minimum cover shall be 24". All excavations within the right of way and not under paving shall be backfilled by tamping in 6" layers or by puddling. All surplus materials shall be removed from the right of way and the excavation finished flush with adjoining ground.
Where sodding is disturbed on improved roads by excavation or backfilling operation, such areas shall be replaced with mulch sodding on all slopes of 5% or less. All slopes ever 5% shall be replaced with block sodding.
All pipe lines and/or cables or any buried utilities crossing under existing, paved roads and cross roads within the right of way limits shall be bored, jacked or tunneled and encased. Borings, Jacking or tunneling and casing shall extend from toe of shoulder slope to toe of shoulder slope. All boring, jacking or tunneling and casing shall be done as shown by the drawing attached.
Where it is evident that boring is impractical due to rock or other obstruction, the County Engineer, after notification of such problems, may grant permission to open cut the paving. Where open cutting is allowed, the following conditions will be met:
No materials removed from the excavation is to be placed back in the cut.
Cut shall be back-filled with aggregate, such as S910, or with #6, #5 stone, to within 6 inches and then cold-mix asphalt to the top of cut.
One-half of the traveled portion of the paving must be open to traffic at all times.
Open cutting of pavement shall be done as shown in the drawing below.