US Bridges

Sth EB STH29 over Sth 29

Good

Marathon County, Wisconsin · 1.25M S JCT N · Structure no. B37033800000000

Built
2006
19 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
209 ft
3 main spans
Daily traffic
19,000
2022 count
Owner
State
State Highway Agency

About this bridge

Sth EB STH29 over Sth 29 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth EB STH29 over Sth 29 in Marathon County, Wisconsin. It was built in 2006, so it is 19 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 19,000 vehicles a day, projected to reach 25,100 by 2041. The structure is 209 ft (63.6 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSth EB STH29
CrossesSth 29
Location1.25M S JCT N
RouteState Highway 29
Coordinates44.89636, -89.63792
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 inspectionJune 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 rating77.4 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length209 ft (63.6 m)
Longest span107 ft (32.6 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2022)
Projected traffic25,100 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 EB STH29 over Sth 29 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Sth EB STH29 over Sth 29 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 June 2022.

How much traffic does Sth EB STH29 over Sth 29 carry?

About 19,000 vehicles per day (2022 count).

How long is Sth EB STH29 over Sth 29?

The structure is 209 ft (63.6 m) long with a longest span of 107 ft (32.6 m) and a deck 47 ft wide.

Who owns Sth EB STH29 over Sth 29?

It is owned by the State Highway Agency.