US Bridges

Sth 82 over Bn Rr/Winneshiek Slough

Fair

Crawford County, Wisconsin · 2.2M E Iowa State Line · Structure no. B12000500000000

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Truss - Deck
Steel Continuous
Length
639 ft
3 main spans
Daily traffic
2,700
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 82 over Bn Rr/Winneshiek Slough is a steel continuous truss - deck carrying Sth 82 over Bn Rr/Winneshiek 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 5 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 2,700 vehicles a day, roughly 8% of them trucks, projected to reach 3,200 by 2043. The structure is 639 ft (194.9 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
CrossesBn Rr/Winneshiek Slough
Location2.2M E Iowa State Line
RouteState Highway 82
CountyCrawford County
StateWisconsin
Coordinates43.39039, -91.18066
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating46.8 US tons
Inventory rating25 US tons

Structure

Structure typeTruss - Deck
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadH 20
Structure length639 ft (194.9 m)
Longest span170 ft (51.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2022)
Projected traffic3,200 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
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$3.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 82 over Bn Rr/Winneshiek Slough built?

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

What condition is Sth 82 over Bn Rr/Winneshiek 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 Bn Rr/Winneshiek Slough carry?

About 2,700 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth 82 over Bn Rr/Winneshiek Slough?

The structure is 639 ft (194.9 m) long with a longest span of 170 ft (51.8 m) and a deck 29 ft wide.

Who owns Sth 82 over Bn Rr/Winneshiek Slough?

It is owned by the State Highway Agency.