US Bridges

Ush 18 over Crawfish River

Fair

Jefferson County, Wisconsin · 1.2M E JCT Sth 89 to N · Structure no. B28066600000000

Built
1940
85 years old, rebuilt 1988
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
210 ft
3 main spans
Daily traffic
5,400
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 18 over Crawfish River is a steel stringer/multi-beam or girder carrying Ush 18 over Crawfish River in Jefferson County, Wisconsin. It was built in 1940 and reconstructed in 1988, so it is 85 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 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 5,400 vehicles a day, roughly 4% of them trucks, projected to reach 6,480 by 2042. The structure is 210 ft (64 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUsh 18
CrossesCrawfish River
Location1.2M E JCT Sth 89 to N
RouteU.S. Route 18
Coordinates43.00616, -88.83079
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating23.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length210 ft (64 m)
Longest span69 ft (21.1 m)
Deck width39 ft (12 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2022)
Projected traffic6,480 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ush 18 over Crawfish River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1988.

What condition is Ush 18 over Crawfish 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 April 2024.

How much traffic does Ush 18 over Crawfish River carry?

About 5,400 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Ush 18 over Crawfish River?

The structure is 210 ft (64 m) long with a longest span of 69 ft (21.1 m) and a deck 39 ft wide.

Who owns Ush 18 over Crawfish River?

It is owned by the State Highway Agency.