US Bridges

Mn 23 over Elk River

Good

Benton County, Minnesota · 1.5 MI E of JCT TH 95 · Structure no. 05017

Built
2011
14 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
3,516
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 23 over Elk River is a prestressed concrete stringer/multi-beam or girder carrying Mn 23 over Elk River in Benton County, Minnesota. It was built in 2011, so it is 14 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,516 vehicles a day, roughly 6% of them trucks, projected to reach 4,200 by 2042. The structure is 112 ft (34.1 m) long and 45 ft wide. If it were closed, the detour would be 67.1 mi (108 km).

CarriesMn 23
CrossesElk River
Location1.5 MI E of JCT TH 95
RouteState Highway 23
Coordinates45.60468, -94.03295
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.4 US tons
Inventory rating60.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length112 ft (34.1 m)
Longest span108 ft (32.9 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,516 (2022)
Projected traffic4,200 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.1 mi (108 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 23 over Elk River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Mn 23 over Elk River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Mn 23 over Elk River carry?

About 3,516 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Mn 23 over Elk River?

The structure is 112 ft (34.1 m) long with a longest span of 108 ft (32.9 m) and a deck 45 ft wide.

Who owns Mn 23 over Elk River?

It is owned by the State Highway Agency.