US Bridges

Sth 29 WB over Sth 13

Good

Marathon County, Wisconsin · 5.0M W JCT Cth F · Structure no. B37029000000000

Built
1998
27 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
203 ft
2 main spans
Daily traffic
5,850
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 29 WB over Sth 13 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 29 WB over Sth 13 in Marathon County, Wisconsin. It was built in 1998, so it is 27 years old, younger 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.

It carries about 5,850 vehicles a day, projected to reach 5,850 by 2041. The structure is 203 ft (62 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSth 29 WB
CrossesSth 13
Location5.0M W JCT Cth F
RouteState Highway 29
Coordinates44.93311, -90.31604
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length203 ft (62 m)
Longest span102 ft (31 m)
Deck width50 ft (15.2 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,850 (2023)
Projected traffic5,850 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 29 WB over Sth 13 built?

It was built in 1998, making it 27 years old in 2025.

What condition is Sth 29 WB over Sth 13 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 September 2022.

How much traffic does Sth 29 WB over Sth 13 carry?

About 5,850 vehicles per day (2023 count).

How long is Sth 29 WB over Sth 13?

The structure is 203 ft (62 m) long with a longest span of 102 ft (31 m) and a deck 50 ft wide.

Who owns Sth 29 WB over Sth 13?

It is owned by the State Highway Agency.