US Bridges

US-2 over Slate River

Fair

Gogebic County, Michigan · 5.0 MI E of M-64 · Structure no. 000000000002956

Built
1936
89 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
655
2007 count
Owner
State
State Highway Agency

About this bridge

US-2 over Slate River is a concrete tee beam carrying US-2 over Slate River in Gogebic County, Michigan. It was built in 1936, so it is 89 years old, older than the Michigan average of 48.3 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 655 vehicles a day, roughly 20% of them trucks, projected to reach 1,241 by 2018. The structure is 31 ft (9.4 m) long and 51 ft wide. If it were closed, the detour would be 85.1 mi (137 km).

CarriesUS-2
CrossesSlate River
Location5.0 MI E of M-64
RouteU.S. Route 2
Coordinates46.3682, -89.55752
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width51 ft (15.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic655 (2007)
Projected traffic1,241 by 2018
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed85.1 mi (137 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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-2 over Slate River built?

It was built in 1936, making it 89 years old in 2025.

What condition is US-2 over Slate River 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 May 2024.

How much traffic does US-2 over Slate River carry?

About 655 vehicles per day (2007 count), of which roughly 20% are trucks.

How long is US-2 over Slate River?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 51 ft wide.

Who owns US-2 over Slate River?

It is owned by the State Highway Agency.