Iowa Code § 314.20
The department shall develop an accommodation plan for the longitudinal utility use of freeway right-of-way, in consultation with the utilities board. The plan shall be consistent with the rules of the federal highway administration of the United States department of transportation and shall be submitted to the federal highway administration for its approval by January 1, 1989. In developing the plan, the department shall provide for extended payment and lease agreements to provide continuous funding for the living roadway trust fund. The plan shall provide for charges for the use of the right-of-way and all moneys collected shall be credited to the living roadway trust fund established under section 314.21.
Iowa Code § 314.20
88 Acts, ch 1019, §9; 89 Acts, ch 246, §4