US Bridges

Cth Q over Big Sandy Creek

Fair

Marathon County, Wisconsin · 0.5M N JCT Sth 52 · Structure no. B37024500000000

Built
1991
34 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
601
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Q over Big Sandy Creek is a concrete continuous culvert carrying Cth Q over Big Sandy Creek in Marathon County, Wisconsin. It was built in 1991, so it is 34 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 601 vehicles a day, roughly 8% of them trucks, projected to reach 653 by 2042. The structure is 24 ft (7.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Q
CrossesBig Sandy Creek
Location0.5M N JCT Sth 52
RouteCounty Highway 0Q
CountyMarathon County
StateWisconsin
Coordinates45.03868, -89.42759
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span11 ft (3.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic601 (2023)
Projected traffic653 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Q over Big Sandy Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Cth Q over Big Sandy 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 October 2023.

How much traffic does Cth Q over Big Sandy Creek carry?

About 601 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Cth Q over Big Sandy Creek?

The structure is 24 ft (7.4 m) long with a longest span of 11 ft (3.4 m) and a deck 32 ft wide.

Who owns Cth Q over Big Sandy Creek?

It is owned by the County Highway Agency.