Minn. Stat. § 165.03
Subd. 1. Standards generally.
165.03 STRENGTH OF BRIDGE; INSPECTION.
Each bridge, including a privately owned bridge, must conform to the strength, width, clearance, and safety standards imposed by the commissioner for the connecting highway or street. This subdivision applies to a bridge that is constructed after August 1, 1989, on any public highway or street. The bridge must have sufficient strength to support with safety the maximum vehicle weights allowed under sections 169.822 to 169.829 and must have the minimum width specified in section 165.04, subdivision 3.
Subd. 2. Inspection and inventory responsibilities; rules; forms.
(a) The commissioner of transportation shall adopt official inventory and bridge inspection report forms for use in making bridge inspections by the owners or highway authorities specified by this subdivision. Bridge inspections shall be made at regular intervals, not to exceed two years, by the following owner or official:
(5) the owner of a bridge over a public highway or street or that carries a roadway designated for public use by a public authority, if not required to be inventoried and inspected under clause
(1), (2), (3), or (4).
Subd. 3. County inventory and inspection records and reports.
The county engineer shall maintain a complete inventory record of all bridges as set forth in subdivision 2, clause (2), with the inspection reports thereof, and shall certify annually to the commissioner, as prescribed by the commissioner, that inspections have been made at regular intervals not to exceed two years. A report of the inspections shall be filed annually, on or before February 15 of each year, with the county auditor or town clerk, or the governing body of the municipality. The report shall contain recommendations for the correction of, or legal posting of load limits on any bridge or structure that is found to be understrength or unsafe.
Subd. 4. Municipal inventory and inspection records and reports.
The city engineer shall maintain a complete inventory record of all bridges as set forth in subdivision 2, clause (3), with the inspection reports thereof, and shall certify annually to the commissioner, as prescribed by the commissioner, that inspections have been made at regular intervals not to exceed two years. A report of the inspections shall be filed annually, on or before February 15 of each year, with the governing body of the municipality. The report shall contain recommendations for the correction of, or legal posting of load limits on any bridge or structure that is found to be understrength or unsafe.
Subd. 5. Agreement.
Agreements may be made among the various units of governments, or between governmental units and qualified engineering personnel to carry out the responsibilities for the bridge inspections and reports, as established by subdivision 2.
Subd. 6. Other bridges.
The owner of a toll bridge and the owner of a bridge described in subdivision 2, clause (5), shall certify to the commissioner, as prescribed by the commissioner, that inspections of the bridge have been made at regular intervals not to exceed two years. The certification shall be accompanied by a report of the inspection. The report shall contain recommendations for the correction of or legal posting of load limitations if the bridge is found to be understrength or unsafe.
Subd. 7. Department of Natural Resources bridge.
(b) The memorandum of understanding must provide for: