US Bridges

Sth 29 EB over Sth 73 NB

Fair

Clark County, Wisconsin · 6.0M E JCT Cth Nn · Structure no. B10014500000000

Built
1994
31 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
142 ft
2 main spans
Daily traffic
6,950
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 29 EB over Sth 73 NB is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 29 EB over Sth 73 NB in Clark County, Wisconsin. It was built in 1994, so it is 31 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,950 vehicles a day, roughly 8% of them trucks, projected to reach 8,340 by 2041. The structure is 142 ft (43.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSth 29 EB
CrossesSth 73 NB
Location6.0M E JCT Cth Nn
RouteState Highway 29
Coordinates44.95128, -90.8005
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length142 ft (43.2 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,950 (2021)
Projected traffic8,340 by 2041
Trucks8%
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 EB over Sth 73 NB built?

It was built in 1994, making it 31 years old in 2025.

What condition is Sth 29 EB over Sth 73 NB in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Sth 29 EB over Sth 73 NB carry?

About 6,950 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Sth 29 EB over Sth 73 NB?

The structure is 142 ft (43.2 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns Sth 29 EB over Sth 73 NB?

It is owned by the State Highway Agency.