US Bridges

Mn 15 over Elm Creek

Good

Martin County, Minnesota · 4.0 MI S of Truman · Structure no. 46004

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
157 ft
2 main spans
Daily traffic
3,495
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 15 over Elm Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 15 over Elm Creek in Martin County, Minnesota. It was built in 1982, so it is 43 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 3,495 vehicles a day, roughly 13% of them trucks, projected to reach 4,450 by 2042. The structure is 157 ft (48 m) long and 51 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMn 15
CrossesElm Creek
Location4.0 MI S of Truman
RouteState Highway 15
Coordinates43.77031, -94.42699
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length157 ft (48 m)
Longest span76 ft (23.3 m)
Deck width51 ft (15.4 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,495 (2022)
Projected traffic4,450 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

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 15 over Elm Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Mn 15 over Elm 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 2024.

How much traffic does Mn 15 over Elm Creek carry?

About 3,495 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Mn 15 over Elm Creek?

The structure is 157 ft (48 m) long with a longest span of 76 ft (23.3 m) and a deck 51 ft wide.

Who owns Mn 15 over Elm Creek?

It is owned by the State Highway Agency.