US Bridges

Cth O over Bostwick Creek

FairPosted for load

La Crosse County, Wisconsin · 0.1M E JCT Cth Oa · Structure no. B32002000000000

Built
1957
68 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
106 ft
3 main spans
Daily traffic
2,700
2021 count
Owner
County
County Highway Agency

About this bridge

Cth O over Bostwick Creek is a concrete continuous slab carrying Cth O over Bostwick Creek in La Crosse County, Wisconsin. It was built in 1957, so it is 68 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 other load-capacity restriction.

It carries about 2,700 vehicles a day, projected to reach 3,141 by 2044. The structure is 106 ft (32.2 m) long and 28 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesCth O
CrossesBostwick Creek
Location0.1M E JCT Cth Oa
RouteCounty Highway 0O
CountyLa Crosse County
StateWisconsin
Coordinates43.84112, -91.11165
Functional classRural Major 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.4 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length106 ft (32.2 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2021)
Projected traffic3,141 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$586,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth O over Bostwick Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Cth O over Bostwick Creek 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 January 2025.

How much traffic does Cth O over Bostwick Creek carry?

About 2,700 vehicles per day (2021 count).

How long is Cth O over Bostwick Creek?

The structure is 106 ft (32.2 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Cth O over Bostwick Creek?

It is owned by the County Highway Agency.