US Bridges

Sth 25 over Cnw RR

Fair

Dunn County, Wisconsin · 0.8M N JCT IH 94 to E · Structure no. B17004500000000

Built
1959
66 years old, rebuilt 2008
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
166 ft
3 main spans
Daily traffic
6,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 25 over Cnw RR is a prestressed concrete stringer/multi-beam or girder carrying Sth 25 over Cnw RR in Dunn County, Wisconsin. It was built in 1959 and reconstructed in 2008, so it is 66 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 6,900 vehicles a day, roughly 8% of them trucks, projected to reach 8,520 by 2043. The structure is 166 ft (50.7 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSth 25
CrossesCnw RR
Location0.8M N JCT IH 94 to E
RouteState Highway 25
CountyDunn County
StateWisconsin
Coordinates44.91586, -91.93143
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length166 ft (50.7 m)
Longest span62 ft (18.9 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2023)
Projected traffic8,520 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 25 over Cnw RR built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2008.

What condition is Sth 25 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 August 2024.

How much traffic does Sth 25 over Cnw RR carry?

About 6,900 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sth 25 over Cnw RR?

The structure is 166 ft (50.7 m) long with a longest span of 62 ft (18.9 m) and a deck 39 ft wide.

Who owns Sth 25 over Cnw RR?

It is owned by the State Highway Agency.