US Bridges

Mn 105 over Orchard Creek

Good

Mower County, Minnesota · 6.4 MI S of Austin · Structure no. 91570

Built
1978
47 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
62 ft
4 main spans
Daily traffic
610
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 105 over Orchard Creek is a concrete culvert carrying Mn 105 over Orchard Creek in Mower County, Minnesota. It was built in 1978, so it is 47 years old, older 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 610 vehicles a day, roughly 8% of them trucks, projected to reach 560 by 2038. The structure is 62 ft (19 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMn 105
CrossesOrchard Creek
Location6.4 MI S of Austin
RouteState Highway 105
Coordinates43.58009, -93.00128
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length62 ft (19 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2018)
Projected traffic560 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 105 over Orchard Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Mn 105 over Orchard 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 August 2023.

How much traffic does Mn 105 over Orchard Creek carry?

About 610 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Mn 105 over Orchard Creek?

The structure is 62 ft (19 m) long with a longest span of 12 ft (3.7 m).

Who owns Mn 105 over Orchard Creek?

It is owned by the State Highway Agency.