US Bridges

Cth Q over Little Sandy Creek

Fair

Marathon County, Wisconsin · 0.7M S JCT Cth Z · Structure no. P37096300000000

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
600
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Q over Little Sandy Creek is a prestressed concrete channel beam carrying Cth Q over Little Sandy Creek in Marathon County, Wisconsin. It was built in 1972, so it is 53 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 600 vehicles a day, projected to reach 653 by 2042. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Q
CrossesLittle Sandy Creek
Location0.7M S JCT Cth Z
RouteCounty Highway 0Q
CountyMarathon County
StateWisconsin
Coordinates44.97745, -89.42864
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.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic653 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Q over Little Sandy Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Cth Q over Little 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 Little Sandy Creek carry?

About 600 vehicles per day (2023 count).

How long is Cth Q over Little Sandy Creek?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 27 ft wide.

Who owns Cth Q over Little Sandy Creek?

It is owned by the County Highway Agency.