Wis. Stat. § 182.38: Entry upon lands.

The turnpike corporation by its authorized agents and employees may enter upon any lands in the state for the purpose of making such surveys and examinations as are necessary or proper for the purposes of ss. 182.30 to 182.48. Such entry shall not be deemed a trespass nor entry under any kind of condemnation proceedings which may be then pending. The corporation shall make reimbursement for any actual damage resulting to such lands or premises and to private property located on the same as a result of such activities.