US Bridges

Mn 9 over Mud Creek

Good

Swift County, Minnesota · 2.0 MI E of Benson · Structure no. 76014

Built
2013
12 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
1,850
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 9 over Mud Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 9 over Mud Creek in Swift County, Minnesota. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,850 vehicles a day, roughly 19% of them trucks, projected to reach 1,700 by 2039. The structure is 84 ft (25.5 m) long and 43 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMn 9
CrossesMud Creek
Location2.0 MI E of Benson
RouteState Highway 9
Coordinates45.32541, -95.55172
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length84 ft (25.5 m)
Longest span84 ft (25.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2019)
Projected traffic1,700 by 2039
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

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 9 over Mud Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Mn 9 over Mud Creek 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 September 2024.

How much traffic does Mn 9 over Mud Creek carry?

About 1,850 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is Mn 9 over Mud Creek?

The structure is 84 ft (25.5 m) long with a longest span of 84 ft (25.5 m) and a deck 43 ft wide.

Who owns Mn 9 over Mud Creek?

It is owned by the State Highway Agency.