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CHAPTER 165. BRIDGES

Table of Sections
SectionHeadnote
165.01DEFINITIONS.
165.02POWERS OF ROAD AUTHORITIES.
165.03STRENGTH OF BRIDGE; INSPECTION.
165.04BRIDGE, CULVERT; WIDTHS.
165.05RAILROAD BRIDGE OVER HIGHWAY.
165.06HIGHWAY BRIDGE AND APPROACH OVER RAILROAD.
165.07INTERSTATE BRIDGE.
165.08BRIDGE OVER WATERS BETWEEN STATES OR NATIONS.
165.09JOINT ESTABLISHMENT OF BRIDGE OVER NAVIGABLE STREAM.
165.10BONDS.
165.11TOWN BRIDGES DESTROYED BY CALAMITY; RECONSTRUCTION.
165.12MAINTENANCE OF BRIDGE ON TOWN ROAD.
165.13CLOSED COMBINATION BRIDGE; LEASE OR SALE BY COUNTY.
165.01 MS 1957 [Renumbered 166.01]
165.01 DEFINITIONS.
For the purposes of this chapter, the terms defined in section 160.02 shall have the same
meanings.
History: 1959 c 500 art 6 s 1
165.02 MS 1957 [Renumbered 166.02]
165.02 POWERS OF ROAD AUTHORITIES.
The road authorities may construct, reconstruct, improve, and maintain bridges whenever
they deem bridges to be necessary. Any new or reconstructed bridge may have a separate lane in
at least one direction, and may have a lane in both directions, eight feet in width for recreational
use. The same may be true for each underpass.
History: 1959 c 500 art 6 s 2; 1973 c 620 s 4
165.03 MS 1957 [Renumbered 166.03]
165.03 STRENGTH OF BRIDGE; INSPECTION.
    Subdivision 1. Standards generally. 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:
(1) the commissioner of transportation for all bridges located wholly or partially within or
over the right-of-way of a state trunk highway;
(2) the county highway engineer for all bridges located wholly or partially within or over
the right-of-way of any county or township road, or any street within a municipality which does
not have a city engineer regularly employed;
(3) the city engineer for all bridges located wholly or partially within or over the right-of-way
of any street located within or along municipal limits;
(4) the commissioner of transportation in case of a toll bridge that is used by the general
public and that is not inspected and certified under subdivision 6; provided, that the commissioner
of transportation may assess the owner for the costs of such inspection;
(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).
(b) The commissioner of transportation shall prescribe the standards for bridge inspection
and inventory by rules. The owner or highway authority shall inspect and inventory in accordance
with these standards and furnish the commissioner with such data as may be necessary to maintain
a central inventory.
    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. (a) Notwithstanding subdivision 2,
the commissioners of transportation and natural resources shall negotiate a memorandum of
understanding that governs the inspection of bridges owned, operated, or maintained by the
commissioner of natural resources.
(b) The memorandum of understanding must provide for:
(1) the inspection and inventory of bridges subject to federal law or regulations;
(2) the frequency of inspection of bridges described in paragraph (a); and
(3) who may perform inspections required under the memorandum of understanding.
History: 1959 c 500 art 6 s 3; 1969 c 304 s 1; 1973 c 41 s 1; 1973 c 123 art 5 s 7; 1976 c
166 s 7; 1985 c 248 s 70; 1986 c 444; 1989 c 158 s 1; 1994 c 635 art 2 s 5; 1998 c 403 s 12
165.04 MS 1957 [Renumbered 166.04]
165.04 BRIDGE, CULVERT; WIDTHS.
    Subdivision 1. Major highway. Except for railroad-highway grade separations and single
lane one directional ramp bridges, and except as hereinafter provided, all bridges and culverts on
any trunk highway, county state-aid highway, or municipal state-aid street hereafter established,
constructed, or improved shall be at least 24 feet wide between curbs, and approaches thereto
shall be at least 28 feet wide shoulder to shoulder. Nothing contained herein shall be construed to
prevent the state, counties, or municipalities from performing ordinary repairs or maintenance on
any such bridge or culvert less than 24 feet wide between curbs.
    Subd. 2. Extraordinary repair or improvement. Upon finding it practical to do so, the
commissioner may make extraordinary repairs or improvements on existing trunk highway
bridges less than 24 feet wide between curbs without widening such bridges. Counties and
municipalities may make extraordinary repairs or improvements on major existing bridges
less than 24 feet wide between curbs, without widening such bridges, if the plans for such
extraordinary repairs or improvements are first approved by the commissioner. A major bridge
shall mean a bridge which, together with its approaches, is at least 75 feet in length.
    Subd. 3. Other roads. Except for railroad-highway grade separations, all bridges, culverts,
and approaches thereto on all other roads, except cartways, hereafter established, constructed, or
improved shall be at least 20 feet wide, provided that in cases where salvaged material from a
steel span bridge removed from a highway can be used in the erection of a steel span bridge on a
county highway or town road, such bridge, so to be erected, may be less than 20 feet wide, but
before such bridge is erected the plan shall first be approved by the commissioner.
History: 1959 c 500 art 6 s 4; 1961 c 218 s 1; 1963 c 293 s 1; 1986 c 444
165.05 MS 1957 [Renumbered 166.05]
165.05 RAILROAD BRIDGE OVER HIGHWAY.
    Subdivision 1. Width. Any railroad bridge hereafter constructed or substantially
reconstructed over a public highway including city streets, shall be constructed so as to leave a
clear opening for the highway at least four feet wider than the surfaced portion of the highway,
but in no event less than 28 feet wide; provided that the requirement that the clear opening for the
highway be at least four feet wider than the surfaced portion of the highway may be modified by
the commissioner in accordance with plans approved by the commissioner.
    Subd. 2. Clearance between highway and bridge. Such bridge shall provide at least 16 feet
clear space from the surface of the highway to the bottom of the bridge, except that such clear
space under any bridge over roads other than those on the state trunk highway system or the
interstate highway system shall be not less than 14 feet unless a lesser clear space is approved
by the commissioner.
History: 1959 c 500 art 6 s 5; 1963 c 242 s 1; 1973 c 123 art 5 s 7; 1986 c 444
165.06 MS 1957 [Renumbered 166.06]
165.06 HIGHWAY BRIDGE AND APPROACH OVER RAILROAD.
    Subdivision 1. Width of bridge. The clear roadway width between curbs on any bridge
hereafter constructed on any public highway, including city streets, over the tracks of any railroad
shall be at least four feet wider than the surface portion of the highway, but in no event less than
28 feet; provided that the requirement that the width of the bridge be at least four feet wider than
the surface portion of the highway may be modified by the commissioner in accordance with
the plans approved by the commissioner; further provided that in the case of bridges hereafter
constructed on any town road over the tracks of any railroad the minimum width shall be 20 feet.
    Subd. 2. Bridge approach. The approaches to the bridge shall be at least eight feet wider
than the surfaced portion of the roadway, but not less than 32 feet wide, and the grade of the
approach shall not exceed five feet rise in 100 feet, provided that the requirement that the grade of
the approach may be modified by the commissioner in accordance with plans approved by the
commissioner; provided that in the case of town roads the minimum width of the approaches to
the bridge shall be 24 feet. It shall leave a clear space from the railroad rails of at least 22 feet
measured vertically.
History: 1959 c 500 art 6 s 6; 1967 c 266 s 1; 1973 c 123 art 5 s 7; 1986 c 444
165.07 MS 1957 [Renumbered 166.07]
165.07 INTERSTATE BRIDGE.
    Subdivision 1. Purpose. The purpose of this section is to connect the highway system of this
state with the highway system of adjoining states by means of interstate bridges.
    Subd. 2. Interstate bridge as part of highway system. When any trunk highway, county
state-aid highway, or municipal state-aid street leads to or connects with an interstate bridge, other
than an interstate bridge owned privately or operated as a toll bridge, the bridge or so much
thereof as lies within the boundaries of this state shall be part of the highway or street leading to it.
    Subd. 3. Acquisition of bridge owned by city in adjoining state. Any road authority,
including the road authority of any city having jurisdiction over a highway or street connecting
with an interstate bridge owned by an adjoining state or political subdivision thereof, may acquire
the bridge or any portion thereof from the adjoining state or political subdivision thereof upon
such terms and conditions as the road authority deems just and equitable.
    Subd. 4. Acquisition of toll or privately owned bridge. Any road authority, including the
road authority of any city, having jurisdiction over any highway or street connecting with an
interstate bridge that is owned privately or operated as a toll bridge, may acquire the bridge in
cooperation with the authorized authorities of the adjoining state connected by the bridge, when
the road authority determines that the acquisition is required in the interests of public travel. The
bridge may be acquired by purchase, gift, or eminent domain proceedings as provided by law.
    Subd. 5. Cooperation with authorities of adjoining state. Road authorities, including road
authorities of cities having jurisdiction over any highway or street connecting with an interstate
bridge shall cooperate with the authorized authorities of the adjoining state connected by the
bridge in the maintenance, improvement, or reconstruction of the bridge. If any highway or street
runs to boundary waters of this state and an adjoining state where no interstate bridge exists,
the road authorities, in cooperation with the authorized authorities of the adjoining state, may
construct and thereafter maintain an interstate bridge connecting the highway or street with the
highway system of the adjoining state when the road authority determines that the bridge is
necessary in the interests of public travel. The location of the bridge shall be determined by the
road authority in cooperation with the authorities of the adjoining state.
    Subd. 6. Joint acquisition. Counties, towns and cities bordering on boundary waters of this
state may jointly acquire, construct, reconstruct, improve, or maintain an interstate bridge in
cooperation with the authorized authorities of the adjoining state; provided that county state-aid
highway funds or municipal state-aid street funds shall not be expended on interstate bridges other
than those connecting with a county state-aid highway or municipal state-aid street.
    Subd. 7. Agreements with authorities of adjoining states. The road authorities, including
the road authorities of cities, may enter into equitable agreements with the authorized authorities
of adjoining states in all matters pertaining to interstate bridges.
    Subd. 8. Trunk highway located over bridge. When any route of the trunk highway system
runs into or through any city owning an interstate bridge connecting such city with the highway
system of an adjoining state, the commissioner shall specifically locate the route so that it shall
run to the state boundary over the bridge.
History: 1959 c 500 art 6 s 7; 1973 c 123 art 5 s 7
165.08 MS 1957 [Renumbered 166.08]
165.08 BRIDGE OVER WATERS BETWEEN STATES OR NATIONS.
    Subdivision 1. Authority, agreement. When a trunk highway leads to waters forming the
boundary between this state and an adjoining nation or province thereof, and the Congress of
the United States has authorized the construction of a bridge or bridges over the waters, the
commissioner may enter into equitable agreements with the authorized authorities of the nation
or province providing for the purchase, construction, reconstruction, maintenance, repair, and
operation of the bridge or bridges, and for the division of costs and responsibilities to be borne by
each therefor. The bridge or bridges shall thereafter be constructed, reconstructed, maintained,
improved, and operated in accordance with the agreement. Such equitable agreement may create a
joint and independent international authority or commission, which may independently purchase,
construct, reconstruct, maintain, improve, repair and operate the bridge or bridges in accordance
with the agreement.
    Subd. 2. Toll bridge permitted. The agreement may provide that such bridges may be
operated as free bridges or as toll bridges. If the latter, tolls may be collected for the use thereof at
rates sufficient to liquidate the capital costs in a reasonable period of time, and after the liquidation
of such capital costs, tolls may continue to be charged so as to defer any costs of reconstruction,
maintenance, repair, improvement and operation which are thereafter incurred.
    Subd. 3. Acquiring toll bridge owned by Minnesota municipality. When any trunk
highway leads to a toll bridge over boundary waters between this state and an adjoining nation
or province, and such bridge is owned by a municipality of this state, the commissioner may
purchase such bridge and assume the obligations of any bonds issued for the construction of
such bridge and still outstanding at the time of purchase. Such bridge may be purchased under
agreement with the adjoining nation or province, or may be purchased in its entirety with trunk
highway funds. Upon such purchase, the bridge may be operated as a free bridge or as a toll
bridge. If such bridge is operated as a toll bridge, the commissioner may collect tolls for the use
of the bridge in such amounts so as to, as nearly as practicable, enable the outstanding bonds to
be retired at maturity from the income from such toll charges.
    Subd. 4. Costs and tolls; trunk highway fund. All costs to be borne by this state of
purchasing, constructing, reconstructing, maintaining, improving and operating such bridges,
including interest and principal payments of any bond obligations assumed by the commissioner
shall be paid out of the trunk highway fund. Minnesota's share of all tolls collected under
agreement with an adjoining nation or province, and all tolls collected for any toll bridge
purchased entirely by this state shall be paid into the trunk highway fund. Notwithstanding this
section or any other provision of law to the contrary, a joint and independent international
authority or commission created under subdivision 1 is authorized to establish, collect, retain and
spend all tolls for the purchase, construction, reconstruction, maintenance, improvement, repair
and operation of any bridge or bridges under its control, and such international authority or
commission is not required to deposit such tolls into the trunk highway fund.
    Subd. 5. Exemptions. Notwithstanding any other provision of law to the contrary, the
properties, moneys, and other assets of any joint and independent international authority or
commission created under subdivision 1, all revenues or other income of any such authority or
commission shall be exempt from all taxation, licenses, fees, or charges of any kind imposed by
the state or by any county, municipality, political subdivision, taxing district, or other public
agency or body of the state.
History: 1959 c 500 art 6 s 8; 1965 c 256 s 1; 1971 c 678 s 1-4; 1996 c 471 art 1 s 2
165.09 MS 1957 [Renumbered 166.09]
165.09 JOINT ESTABLISHMENT OF BRIDGE OVER NAVIGABLE STREAM.
    Subdivision 1. Joint acquisition, construction, and maintenance. Counties, towns, and
cities interested, jointly or separately, may lease, acquire, construct, reconstruct, improve, and
maintain bridges over any navigable stream and may construct, reconstruct, and maintain suitable
approaches thereto. Such approaches may include the improvement of main highways for a
distance not exceeding ten miles from the bridge.
    Subd. 2. What constitutes interest in bridge. A county, town, or city shall be deemed
interested in bridges located outside of and within three miles of its corporate boundaries as
well as those within or along its boundaries.
    Subd. 3. Bridge over Minnesota River or Mississippi River. Before any bridge is erected
over the Minnesota River or Mississippi River, the location and plan thereof shall be approved by
the commissioner. Bridges over the Minnesota River below the city of Chaska shall be built with
a suitable draw of not less than 80 feet opening or, in lieu of such opening, built at such clear
height above the ordinary high-water stage as will be sufficient to accommodate the ordinary
navigation of the river.
    Subd. 4. Draws opened on reasonable signal. All draws shall be opened on reasonable
signal or notice to allow the passage of vessels.
    Subd. 5. Approval of Secretary of Army. All bridges over navigable waters of the United
States shall receive the approval of the Secretary of Army before construction.
    Subd. 6. Securing free public use of toll bridge. Counties, towns, and cities interested
may secure the free public use of any toll bridge built across any stream in this state. They may
secure the free public use of any bridge by purchase, gift, or eminent domain proceedings
as provided by law.
History: 1959 c 500 art 6 s 9; 1973 c 123 art 5 s 7
165.10 MS 1957 [Renumbered 166.10]
165.10 BONDS.
    Subdivision 1. Certain counties may issue and sell. The county board of any county having
no outstanding road and bridge bonds may issue and sell county road bonds in an amount not
exceeding 0.12089 percent of the market value of the taxable property within the county exclusive
of money and credits, for the purpose of constructing, reconstructing, improving, or maintaining
any bridge or bridges on any highway under its jurisdiction, without submitting the matter to a
vote of the electors of the county.
    Subd. 2. Bonds issued, sold, and retired. Such bonds shall be general obligations of the
county and issued, sold, and retired in the manner provided in chapter 475.
History: 1959 c 500 art 6 s 10; 1988 c 719 art 5 s 84; 1989 c 329 art 13 s 20; 1990 c
480 art 9 s 7; 2001 c 214 s 2
165.11 TOWN BRIDGES DESTROYED BY CALAMITY; RECONSTRUCTION.
When a bridge on a town road over a natural water course has been destroyed by unusual
flood or calamity and the county in which such bridge is situated contributed to the original cost
of construction thereof, and the town resolves to reconstruct the bridge, the county board and the
town board by agreement shall determine the costs and responsibilities to be borne by each in the
reconstruction of the bridge. The costs agreed upon to be paid by the town and the county shall be
paid out of their respective road and bridge funds.
History: 1959 c 500 art 6 s 11
165.12 MAINTENANCE OF BRIDGE ON TOWN ROAD.
    Subdivision 1. Duty of county when town fails. When it becomes necessary to reconstruct
or repair a bridge on any town road in any town or upon any town line in this state, and the bridge
is unsafe for travel or has been condemned by the proper authorities, and the town or towns
charged with the duty of maintaining the bridge fail, neglect, or omit to construct, reconstruct, or
repair the same or provide for the expense or cost of so constructing, reconstructing, or repairing
the same, the county board of the county in which the town or towns are located shall have the
power and authority to reconstruct and repair the bridge upon giving notice to the town board
of the town or towns of its intention to do so and fixing a time and place for a hearing as to the
necessity and advisability of the reconstruction or repair.
    Subd. 2. Itemized statement. When any county shall have reconstructed or repaired any
such bridge, the county board shall prepare an itemized statement of the cost thereof. The original
shall be filed with the county auditor. Certified copies shall be filed with the clerk of the town
or towns charged with the responsibility of maintaining the bridge. If two or more towns were
responsible for the bridge the statement shall also show the portion of the cost apportioned to
each town. The proportion of the cost to be apportioned to each town shall be determined at the
hearing provided in subdivision 1.
    Subd. 3. Special tax. The town clerk, upon receipt of the statement, shall forthwith notify the
several members of the town board that a statement has been filed, and that a meeting of the town
board to act thereon will be held at a time and place specified in the notice. The meeting shall be
held not later than ten days after the filing of the statement. The town board shall meet at the time
and place specified in the notice so given by the clerk, and shall levy a special tax upon all the
taxable property of the town in an amount sufficient to pay one-half of the amount expended by
the county. If two or more towns were responsible for the bridge, each town shall levy a tax in an
amount sufficient to pay one-half of the cost apportioned to it.
    Subd. 4. County auditor may levy if town board fails to levy. The tax so levied shall be
certified to the county auditor on or before October 15 next succeeding, and the county auditor
shall extend the same with other town taxes upon the tax list of the town. If the town board, for
any reason, fails to act as herein provided, the county auditor shall levy the tax provided herein
and shall extend the same with other town taxes upon the tax list of the town.
    Subd. 5. Collection and payment. The tax shall be collected and the payment enforced in the
same manner and subject to the same penalties and interest as other town taxes. When collected
the tax shall be paid into the county treasury and credited to the county road and bridge fund.
History: 1959 c 500 art 6 s 12
165.13 CLOSED COMBINATION BRIDGE; LEASE OR SALE BY COUNTY.
In any county in which a combination railroad and highway bridge is closed the county board
may lease or purchase such bridge. The subsequent use and operation of the combination bridge
shall conform to and be compatible with the existing uses adjoining both sides of that bridge.
The county board may establish and from time to time adjust tolls to be charged for vehicular
use of the bridge at the rate or rates and on the basis the county board may deem appropriate to
provide revenues sufficient to finance the lease, purchase, operation, repair, and maintenance of
the bridge and toll facilities. The revenues from the bridge tolls shall only be used for the lease,
purchase, repair, operation, and maintenance of the bridge and toll facilities. Notwithstanding
the provisions of this section, if the state purchases the combination bridge the county may
lease the bridge from the state by contract.
History: 1980 c 558 s 6

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