US Bridges

Sth 27 over Sth 29

Fair

Chippewa County, Wisconsin · 0.5M N JCT Cth Mm · Structure no. B09017900000000

Built
1992
33 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
212 ft
4 main spans
Daily traffic
4,300
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 27 over Sth 29 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 27 over Sth 29 in Chippewa County, Wisconsin. It was built in 1992, so it is 33 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 4,300 vehicles a day, roughly 6% of them trucks, projected to reach 3,120 by 2042. The structure is 212 ft (64.6 m) long and 69 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesSth 27
CrossesSth 29
Location0.5M N JCT Cth Mm
RouteState Highway 27
Coordinates44.93741, -91.14605
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 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 rating66.6 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span70 ft (21.3 m)
Deck width69 ft (21 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2021)
Projected traffic3,120 by 2042
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

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 27 over Sth 29 built?

It was built in 1992, making it 33 years old in 2025.

What condition is Sth 27 over Sth 29 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 April 2023.

How much traffic does Sth 27 over Sth 29 carry?

About 4,300 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Sth 27 over Sth 29?

The structure is 212 ft (64.6 m) long with a longest span of 70 ft (21.3 m) and a deck 69 ft wide.

Who owns Sth 27 over Sth 29?

It is owned by the State Highway Agency.