US Bridges

Sth 82 over Big Slough

Fair

Crawford County, Wisconsin · 0.1M E Iowa State Line · Structure no. B12000800000000

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
409 ft
4 main spans
Daily traffic
2,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 82 over Big Slough is a steel continuous stringer/multi-beam or girder carrying Sth 82 over Big Slough in Crawford County, Wisconsin. It was built in 1956, so it is 69 years old, older 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 2,500 vehicles a day, roughly 8% of them trucks, projected to reach 3,350 by 2043. The structure is 409 ft (124.8 m) long and 29 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

Location

Open in Google Maps
CarriesSth 82
CrossesBig Slough
Location0.1M E Iowa State Line
RouteState Highway 82
CountyCrawford County
StateWisconsin
Coordinates43.36756, -91.20808
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length409 ft (124.8 m)
Longest span112 ft (34.1 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic3,350 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.8 mi (114 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 82 over Big Slough built?

It was built in 1956, making it 69 years old in 2025.

What condition is Sth 82 over Big Slough 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 November 2024.

How much traffic does Sth 82 over Big Slough carry?

About 2,500 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth 82 over Big Slough?

The structure is 409 ft (124.8 m) long with a longest span of 112 ft (34.1 m) and a deck 29 ft wide.

Who owns Sth 82 over Big Slough?

It is owned by the State Highway Agency.