Unless there are overriding practical considerations, carrier pipes or encasements as required or used shall be jacked, bored or tunneled across the medians of all 4-lane conventional, partially controlled and fully controlled access highways in order that construction and maintenance equipment and personnel in the medians will be eliminated. Where encasements are required and permitted to be laid in open trenches, they will also be continued across these medians.
37 Miss. Code. R. § 1-7501-04001-502