US Bridges

Cth B over Helen Creek

GoodPosted for load

Vilas County, Wisconsin · 1.7M N JCT Cth Z · Structure no. B63065900000000

Built
1941
84 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
2 main spans
Daily traffic
1,087
2024 count
Owner
County
County Highway Agency

About this bridge

Cth B over Helen Creek is a wood or timber stringer/multi-beam or girder carrying Cth B over Helen Creek in Vilas County, Wisconsin. It was built in 1941, so it is 84 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for other load-capacity restriction.

It carries about 1,087 vehicles a day, projected to reach 1,138 by 2043. The structure is 31 ft (9.4 m) long and 27 ft wide. If it were closed, the detour would be 51.6 mi (83 km).

CarriesCth B
CrossesHelen Creek
Location1.7M N JCT Cth Z
RouteCounty Highway 0B
Coordinates46.18728, -89.41203
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating28.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,087 (2024)
Projected traffic1,138 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51.6 mi (83 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 B over Helen Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is Cth B over Helen Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Cth B over Helen Creek carry?

About 1,087 vehicles per day (2024 count).

How long is Cth B over Helen Creek?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.

Who owns Cth B over Helen Creek?

It is owned by the County Highway Agency.