US Bridges

Mn 87 over Toad River

Good

Becker County, Minnesota · 11.3 MI E of JCT TH 10 · Structure no. 8690

Built
1948
77 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,446
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 87 over Toad River is a concrete culvert carrying Mn 87 over Toad River in Becker County, Minnesota. It was built in 1948, so it is 77 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 1,446 vehicles a day, roughly 2% of them trucks, projected to reach 1,150 by 2041. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesMn 87
CrossesToad River
Location11.3 MI E of JCT TH 10
RouteState Highway 87
Coordinates46.75656, -95.52618
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 protection7 GoodSome minor problems.
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 alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 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 traffic1,446 (2021)
Projected traffic1,150 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$103 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 87 over Toad River built?

It was built in 1948, making it 77 years old in 2025.

What condition is Mn 87 over Toad River 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 87 over Toad River carry?

About 1,446 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Mn 87 over Toad River?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Mn 87 over Toad River?

It is owned by the State Highway Agency.