US Bridges

Ush 8 over Somo River

Fair

Lincoln County, Wisconsin · 0.1M E JCT Cth Yy · Structure no. B35008700000000

Built
1983
42 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
2,300
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 8 over Somo River is a concrete culvert carrying Ush 8 over Somo River in Lincoln County, Wisconsin. It was built in 1983, so it is 42 years old, older than the Wisconsin average of 40.3 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 2,300 vehicles a day, roughly 11% of them trucks, projected to reach 3,300 by 2042. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 72.7 mi (117 km).

CarriesUsh 8
CrossesSomo River
Location0.1M E JCT Cth Yy
RouteU.S. Route 8
Coordinates45.55354, -90.0427
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2022)
Projected traffic3,300 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.7 mi (117 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ush 8 over Somo River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Ush 8 over Somo 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 June 2023.

How much traffic does Ush 8 over Somo River carry?

About 2,300 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ush 8 over Somo River?

The structure is 28 ft (8.4 m) long with a longest span of 10 ft (3 m).

Who owns Ush 8 over Somo River?

It is owned by the State Highway Agency.