US Bridges

Ush 12 over Cnw RR

Fair

St. Croix County, Wisconsin · 3.2M E JCT Cth U (j) · Structure no. B55007600000000

Built
1980
45 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
184 ft
3 main spans
Daily traffic
2,400
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 12 over Cnw RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Ush 12 over Cnw RR in St. Croix County, Wisconsin. It was built in 1980, so it is 45 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 2,400 vehicles a day, roughly 8% of them trucks, projected to reach 2,880 by 2043. The structure is 184 ft (56 m) long and 37 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
CarriesUsh 12
CrossesCnw RR
Location3.2M E JCT Cth U (j)
RouteU.S. Route 12
CountySt. Croix County
StateWisconsin
Coordinates44.99144, -92.61709
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56 m)
Longest span76 ft (23.2 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2022)
Projected traffic2,880 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed15.5 mi (25 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 12 over Cnw RR built?

It was built in 1980, making it 45 years old in 2025.

What condition is Ush 12 over Cnw RR 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 September 2024.

How much traffic does Ush 12 over Cnw RR carry?

About 2,400 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ush 12 over Cnw RR?

The structure is 184 ft (56 m) long with a longest span of 76 ft (23.2 m) and a deck 37 ft wide.

Who owns Ush 12 over Cnw RR?

It is owned by the State Highway Agency.