US Bridges

Cth Gg over Mccarthy Creek

PoorPosted for load

Ashland County, Wisconsin · 6.0M N JCT Sth 77 · Structure no. B02042300000000

Built
1948
77 years old, rebuilt 1960
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
23 ft
1 main span
Daily traffic
569
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Gg over Mccarthy Creek is a wood or timber stringer/multi-beam or girder carrying Cth Gg over Mccarthy Creek in Ashland County, Wisconsin. It was built in 1948 and reconstructed in 1960, so it is 77 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. Its operating status is: posted for other load-capacity restriction.

It carries about 569 vehicles a day, projected to reach 587 by 2043. The structure is 23 ft (6.9 m) long and 29 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesCth Gg
CrossesMccarthy Creek
Location6.0M N JCT Sth 77
RouteCounty Highway 0GG
Coordinates46.26897, -90.84008
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity 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 rating43.2 US tons
Inventory rating26.8 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length23 ft (6.9 m)
Longest span21 ft (6.3 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic569 (2024)
Projected traffic587 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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$162,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Gg over Mccarthy Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1960.

What condition is Cth Gg over Mccarthy 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 Gg over Mccarthy Creek carry?

About 569 vehicles per day (2024 count).

How long is Cth Gg over Mccarthy Creek?

The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.3 m) and a deck 29 ft wide.

Who owns Cth Gg over Mccarthy Creek?

It is owned by the County Highway Agency.