1. In case it is necessary to cross under any improved road or highway, the opening for a pipeline shall be drilled, bored, or driven at a minimum depth of. three (3) feet below the surface of the road or highway, or the structure may be placed by tunneling when approved by the Inspector. Trenching will be authorized by the Inspector, in writing, where boring is not deemed necessary. When necessary to cross the improved road or highway by tunneling, the crossing shall be made, except in solid rock formation, under one-half (1/2) of the improved road width, and the pipe or structure placed and the hole carefully backfilled with 1:3:6 concrete of a dry consistency thoroughly tamped, and allowed to stand 24 hours before the traffic is permitted use of the half of the road. The second half of the tunneling is to be completed in the same manner, so at least one-half traffic will be maintained over one-half of the improved road or highway while the second half is being tunneled. In solid rock formation, the crossing may be made by trenching when approved by the engineer representing the Township, but not more than one-half (1/2) of the width of the pavement shall be opened, the structure placed, the trench backfilled and tamped with an approved mechanical tamper, unless other methods are approved before disturbing the remaining one-half of the road.
2. Openings made for the purpose of placing pipe lines or other structures under the improved surface by drilling, boring, driving, or tunneling shall be made at least three (3) feet from the edge of the road metal, unless the Township and/or Inspector otherwise designate in writing.
(Ord. 97, § 2, 1-14-81)