The owner or operator of a public utility, whether operated publicly or privately other than steam and electric railways shall afford the contractor of any drainage project under this subchapter, parts 1 through 5, unrestricted passage for the contractor's machines and equipment across the right-of-way lines or other equipment of such utility whenever recommended by the engineer and approved by the board of supervisors.
Iowa Code § 468.115
89 Acts, ch 126, §2