37 Miss. Code R. § 1-7501-04015-801
Generally, all parallel utility lines on freeways, if approved, will be confined to areas outside the control of access line and preferably to the area between the frontage road and the right of way line. The control of access fence will usually be erected near the inside shoulder of the frontage road leaving little or no acceptable area between the fence and the frontage road for underground lines location. Servicing of such lines must be accomplished from the frontage roads. Where there are no frontage roads the control of access line is the right of way line unless noted differently on the highway and/or right of way plans. When underground lines follow cross roads or streets which are carried over fully controlled access highways they may not be attached to bridges, except for water lines indicated in Section 3(a) above, as they cannot be serviced without access from the through lanes or ramps and generally cannot approach the bridge(s) without being placed in the embankment or pavement structure, if any. Underground and overhead lines along such cross road or streets must be located so that servicing can be accomplished from the crossroad or street. Individual service line crossings of freeways are to be avoided where possible, such servicing to be accomplished from single distribution line crossings to the extent practicable and feasible. (Reference: Rule 37.1.7501.06001, Accommodation of Utilities on Freeway Rights of Way).
37 Miss. Code. R. § 1-7501-04015-801