US Bridges

Mn 87 over US 10

Fair

Becker County, Minnesota · At the JCT TH 87(FRAZEE) · Structure no. 03006

Built
1976
49 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
278 ft
4 main spans
Daily traffic
2,666
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 87 over US 10 is a prestressed concrete stringer/multi-beam or girder carrying Mn 87 over US 10 in Becker County, Minnesota. It was built in 1976, so it is 49 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,666 vehicles a day, roughly 6% of them trucks, projected to reach 2,000 by 2041. The structure is 278 ft (84.6 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMn 87
CrossesUS 10
LocationAt the JCT TH 87(FRAZEE)
RouteState Highway 87
CountyBecker County
StateMinnesota
Coordinates46.71994, -95.71693
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating62.8 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length278 ft (84.6 m)
Longest span86 ft (26.1 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,666 (2021)
Projected traffic2,000 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 87 over US 10 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Mn 87 over US 10 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Mn 87 over US 10 carry?

About 2,666 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Mn 87 over US 10?

The structure is 278 ft (84.6 m) long with a longest span of 86 ft (26.1 m) and a deck 50 ft wide.

Who owns Mn 87 over US 10?

It is owned by the State Highway Agency.