US Bridges

Mn 15 over Center Creek

Good

Martin County, Minnesota · 0.3 MI S of JCT TH 90 · Structure no. 46002

Built
1973
52 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
11,176
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 15 over Center Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 15 over Center Creek in Martin County, Minnesota. It was built in 1973, so it is 52 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 11,176 vehicles a day, roughly 5% of them trucks, projected to reach 11,100 by 2042. The structure is 76 ft (23.3 m) long and 94 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMn 15
CrossesCenter Creek
Location0.3 MI S of JCT TH 90
RouteState Highway 15
Coordinates43.67406, -94.44769
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating26.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length76 ft (23.3 m)
Longest span74 ft (22.6 m)
Deck width94 ft (28.7 m)
Roadway width74 ft (22.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,176 (2022)
Projected traffic11,100 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 15 over Center Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Mn 15 over Center 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 May 2024.

How much traffic does Mn 15 over Center Creek carry?

About 11,176 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mn 15 over Center Creek?

The structure is 76 ft (23.3 m) long with a longest span of 74 ft (22.6 m) and a deck 94 ft wide.

Who owns Mn 15 over Center Creek?

It is owned by the State Highway Agency.