US Bridges

Ush 8 over Rat River

Good

Forest County, Wisconsin · 0.2M E JCT Sth 32 to S · Structure no. B21001400000000

Built
1987
38 years old
Condition
Good
inspected August 2021
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
2,000
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 8 over Rat River is a steel culvert carrying Ush 8 over Rat River in Forest County, Wisconsin. It was built in 1987, so it is 38 years old, younger than the Wisconsin average of 40.3 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 2,000 vehicles a day, roughly 11% of them trucks, projected to reach 3,900 by 2040. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 79.5 mi (128 km).

Location

Open in Google Maps
CarriesUsh 8
CrossesRat River
Location0.2M E JCT Sth 32 to S
RouteU.S. Route 8
CountyForest County
StateWisconsin
Coordinates45.56116, -88.67397
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span7 ft (2.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic3,900 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed79.5 mi (128 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 Rat River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Ush 8 over Rat 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 2021.

How much traffic does Ush 8 over Rat River carry?

About 2,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ush 8 over Rat River?

The structure is 22 ft (6.6 m) long with a longest span of 7 ft (2.2 m).

Who owns Ush 8 over Rat River?

It is owned by the State Highway Agency.