(a)

(1) Whenever the commissioner finds it necessary or advisable, the commissioner has the power to alter the course or grade or otherwise improve any road selected, adopted, or accepted for federal or state aid, and take over and improve as a state highway.

(2) The counties in which the roads lie have the authority to acquire for the benefit of the state rights-of-way for the roads, either by donations by owners of the land through which the highways will run, by agreement between the owners and the county, or by the exercise of the power of eminent domain that is expressly conferred upon the counties; provided, that if the county authorities through which the road is designated do not act immediately upon request of the commissioner for the procurement and furnishing of rights-of-way, there is expressly given to the commissioner the right on behalf of the state to condemn by eminent domain all rights-of-way for the roads, all bluffs, gravel pits, and any and all other road material found necessary or advisable to be used by the commissioner; and provided, further, that the commissioner is empowered immediately upon the filing of the petition for condemnation of the rights-of-way and of road material to take possession of the designated rights-of-way, road material and other property sought to be condemned.

(b)

(1) The state, when it exercises its power of eminent domain to make acquisitions for road purposes, or when it acquires land by voluntary purchase for road purposes, shall cause to be filed and recorded in the office of the register in the county where the acquisition is located the final right-of-way plans. The plans shall accurately portray the right-of-way, land, material, easement, or other legal right acquired and the precise location of the right-of-way, land, material, easement, or other legal right.

(2) “Final right-of-way plans” means the entire plans of the project in any particular county, subject to subdivision (b)(1).

(c) Notwithstanding any law or regulation to the contrary, when acquiring land by voluntary purchase for road purposes, the state, through the department of transportation or any agent of the department of transportation, shall, upon the request of the landowner, allow the landowner or the landowner's representative to examine the entire appraisal, if an appraisal was conducted. If an appraisal was not conducted, the landowner or landowner's representative may examine any other documents used to determine the proposed purchase price. This examination shall take place at the department's office for the region in which the property in question lies.