US Bridges

Ush 12 Eb-Ush 18 E over Ush 51

Fair

Dane County, Wisconsin · 3.2 Mi. E of John Nolen ( · Structure no. B13032100000000

Built
1988
37 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
193 ft
2 main spans
Daily traffic
58,500
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 12 Eb-Ush 18 E over Ush 51 is a prestressed concrete continuous stringer/multi-beam or girder carrying Ush 12 Eb-Ush 18 E over Ush 51 in Dane County, Wisconsin. It was built in 1988, so it is 37 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 58,500 vehicles a day, roughly 1% of them trucks, projected to reach 70,200 by 2042. The structure is 193 ft (58.7 m) long and 59 ft wide.

CarriesUsh 12 Eb-Ush 18 E
CrossesUsh 51
Location3.2 Mi. E of John Nolen (
RouteU.S. Route 12
Coordinates43.04579, -89.30724
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length193 ft (58.7 m)
Longest span101 ft (30.8 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,500 (2022)
Projected traffic70,200 by 2042
Trucks1%
Lanes on structure4
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 12 Eb-Ush 18 E over Ush 51 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Ush 12 Eb-Ush 18 E over Ush 51 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 July 2023.

How much traffic does Ush 12 Eb-Ush 18 E over Ush 51 carry?

About 58,500 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Ush 12 Eb-Ush 18 E over Ush 51?

The structure is 193 ft (58.7 m) long with a longest span of 101 ft (30.8 m) and a deck 59 ft wide.

Who owns Ush 12 Eb-Ush 18 E over Ush 51?

It is owned by the State Highway Agency.