US Bridges

Cth B over Hay Creek

Poor

Sawyer County, Wisconsin · 1.7M E JCT Cth a · Structure no. B57003000000000

Built
1982
43 years old
Condition
Poor
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
1,303
2024 count
Owner
County
County Highway Agency

About this bridge

Cth B over Hay Creek is a prestressed concrete box beam or girders - multiple carrying Cth B over Hay Creek in Sawyer County, Wisconsin. It was built in 1982, so it is 43 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 3 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.

It carries about 1,303 vehicles a day, projected to reach 477 by 2043. The structure is 23 ft (7.1 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCth B
CrossesHay Creek
Location1.7M E JCT Cth a
RouteCounty Highway 0B
Coordinates45.98201, -91.17549
Functional classRural Major 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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating64.8 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7.1 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,303 (2024)
Projected traffic477 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$186,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth B over Hay Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Cth B over Hay 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 August 2024.

How much traffic does Cth B over Hay Creek carry?

About 1,303 vehicles per day (2024 count).

How long is Cth B over Hay Creek?

The structure is 23 ft (7.1 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns Cth B over Hay Creek?

It is owned by the County Highway Agency.