US Bridges

Cth Q over E Br Big Sandy Creek

PoorPosted for load

Marathon County, Wisconsin · 0.9M N JCT Cth Z · Structure no. P37022600000000

Built
1967
58 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
602
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Q over E Br Big Sandy Creek is a prestressed concrete channel beam carrying Cth Q over E Br Big Sandy Creek in Marathon County, Wisconsin. It was built in 1967, so it is 58 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 602 vehicles a day, projected to reach 653 by 2043. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth Q
CrossesE Br Big Sandy Creek
Location0.9M N JCT Cth Z
RouteCounty Highway 0Q
Coordinates45.00155, -89.42719
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.8 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic602 (2024)
Projected traffic653 by 2043
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$181,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Q over E Br Big Sandy Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Cth Q over E Br Big Sandy Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

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

About 602 vehicles per day (2024 count).

How long is Cth Q over E Br Big Sandy Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.8 m) and a deck 27 ft wide.

Who owns Cth Q over E Br Big Sandy Creek?

It is owned by the County Highway Agency.