(A) Casing pipe shall be designed to withstand the load of the highway and any other superimposed loads. The casing shall be continuous either by one-piece fabrication or by welding or jointed installation approved by the city.
(B) The venting, if any, of any encasement shall extend within one foot (0.3m) of the right-of-way line. No above-ground vent pipes shall be located in the area established as clear zone for that particular section of the highway.
(C) (1) In the case of water main or service crossing, encasement shall be furnished between bore pits unless continuous pipe or city-approved jointed pipe is used under the roadway.
(2) Casing may be omitted only if pipe is installed prior to highway construction and carrier pipe is continuous or mechanical joints are of a type approved by the city. Bell and spigot type pipe shall be encased regardless of installation method.
(D) In the case of gas pipelines of 60 psig or less, encasement may be eliminated.
(E) In the case of gas pipelines or petroleum products pipelines with installations of more than 60 psig, encasement may be eliminated only if:
(1) Extra heavy pipe is used that precludes future maintenance or repair; and
(2) Cathodic protection of the pipe is provided.
(F) If encasement is eliminated for a gas or petroleum products pipeline, the facility shall be located so as to provide that construction does not disrupt the right-of-way.
(Prior Code, § 33-4-16)