US Bridges

Sth 76 over Soo Line

Fair

Winnebago County, Wisconsin · 0.3M N JCT Sth 150 · Structure no. B70004500000000

Built
1986
39 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
126 ft
1 main span
Daily traffic
12,800
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 76 over Soo Line is a prestressed concrete stringer/multi-beam or girder carrying Sth 76 over Soo Line in Winnebago County, Wisconsin. It was built in 1986, so it is 39 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 12,800 vehicles a day, roughly 8% of them trucks, projected to reach 14,190 by 2043. The structure is 126 ft (38.5 m) long and 47 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

CarriesSth 76
CrossesSoo Line
Location0.3M N JCT Sth 150
RouteState Highway 76
Coordinates44.20498, -88.54409
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length126 ft (38.5 m)
Longest span122 ft (37.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,800 (2022)
Projected traffic14,190 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed15.5 mi (25 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 76 over Soo Line built?

It was built in 1986, making it 39 years old in 2025.

What condition is Sth 76 over Soo Line 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 September 2024.

How much traffic does Sth 76 over Soo Line carry?

About 12,800 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth 76 over Soo Line?

The structure is 126 ft (38.5 m) long with a longest span of 122 ft (37.2 m) and a deck 47 ft wide.

Who owns Sth 76 over Soo Line?

It is owned by the State Highway Agency.