US Bridges

Cth O over Spirit River

FairPosted for load

Lincoln County, Wisconsin · 0.5M S JCT Sth 86 · Structure no. B35000300000000

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
114 ft
3 main spans
Daily traffic
414
2023 count
Owner
County
County Highway Agency

About this bridge

Cth O over Spirit River is a steel continuous stringer/multi-beam or girder carrying Cth O over Spirit River in Lincoln County, Wisconsin. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 414 vehicles a day, projected to reach 444 by 2043. The structure is 114 ft (34.6 m) long and 32 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
CarriesCth O
CrossesSpirit River
Location0.5M S JCT Sth 86
RouteCounty Highway 0O
CountyLincoln County
StateWisconsin
Coordinates45.44759, -89.87853
Functional classRural Minor Collector

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.
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 inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.4 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length114 ft (34.6 m)
Longest span42 ft (12.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic414 (2023)
Projected traffic444 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth O over Spirit River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Cth O over Spirit 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 June 2024.

How much traffic does Cth O over Spirit River carry?

About 414 vehicles per day (2023 count).

How long is Cth O over Spirit River?

The structure is 114 ft (34.6 m) long with a longest span of 42 ft (12.8 m) and a deck 32 ft wide.

Who owns Cth O over Spirit River?

It is owned by the County Highway Agency.