All underground utilities, sanitary sewers, storm drains and culverts installed in streets, service roads, alleys or highways, shall be constructed prior to the surfacing of such street service roads, alleys, or highways. Service connections for all underground utilities and sanitary sewers shall be placed to such length as will obviate the necessity for disturbing the street or alley improvements when service connections thereto are made. Roadway subdrains shall be installed when requested by the city engineer prior to placing of the crusher run base. (Ord. 89 § 6.1(d), 1955).