US Bridges

Skanee Road over Silver River

Fair

Baraga County, Michigan · 7 MI NE of Lanse · Structure no. 000000000000503

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
1,060
2014 count
Owner
County
County Highway Agency

About this bridge

Skanee Road over Silver River is a prestressed concrete box beam or girders - multiple carrying Skanee Road over Silver River in Baraga County, Michigan. It was built in 1999, so it is 26 years old, younger 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 5 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 1,060 vehicles a day, roughly 12% of them trucks, projected to reach 1,400 by 2034. The structure is 90 ft (27.4 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSkanee Road
CrossesSilver River
Location7 MI NE of Lanse
RouteCounty Highway 7760
Coordinates46.80442, -88.3168
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span85 ft (26 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,060 (2014)
Projected traffic1,400 by 2034
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Skanee Road over Silver River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Skanee Road over Silver 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 September 2023.

How much traffic does Skanee Road over Silver River carry?

About 1,060 vehicles per day (2014 count), of which roughly 12% are trucks.

How long is Skanee Road over Silver River?

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (26 m) and a deck 41 ft wide.

Who owns Skanee Road over Silver River?

It is owned by the County Highway Agency.