US Bridges

Ush 18 Wb-Ush 151 over Cth J

Fair

Dane County, Wisconsin · 2.7M W JCT Cth G to S · Structure no. B13038000000000

Built
1991
34 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
137 ft
3 main spans
Daily traffic
10,450
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 18 Wb-Ush 151 over Cth J is a steel continuous stringer/multi-beam or girder carrying Ush 18 Wb-Ush 151 over Cth J in Dane County, Wisconsin. It was built in 1991, so it is 34 years old, younger 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 10,450 vehicles a day, roughly 8% of them trucks, projected to reach 12,540 by 2042. The structure is 137 ft (41.9 m) long and 42 ft wide.

CarriesUsh 18 Wb-Ush 151
CrossesCth J
Location2.7M W JCT Cth G to S
RouteU.S. Route 18
Coordinates42.98839, -89.62684
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.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating53.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.9 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,450 (2022)
Projected traffic12,540 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 18 Wb-Ush 151 over Cth J built?

It was built in 1991, making it 34 years old in 2025.

What condition is Ush 18 Wb-Ush 151 over Cth J 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 Wb-Ush 151 over Cth J carry?

About 10,450 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ush 18 Wb-Ush 151 over Cth J?

The structure is 137 ft (41.9 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns Ush 18 Wb-Ush 151 over Cth J?

It is owned by the State Highway Agency.