US Bridges

Sth 82 over Mississippi River 04

PoorPosted for load

Crawford County, Wisconsin · At Iowa State Line · Structure no. B12000900000000

Built
1931
94 years old
Condition
Poor
inspected August 2023
Type
Truss - Thru
Steel Continuous
Length
1,635 ft
9 main spans
Daily traffic
2,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 82 over Mississippi River 04 is a steel continuous truss - thru carrying Sth 82 over Mississippi River 04 in Crawford County, Wisconsin. It was built in 1931, so it is 94 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,500 vehicles a day, roughly 8% of them trucks, projected to reach 3,350 by 2042. The structure is 1,635 ft (498.3 m) long and 23 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

Location

Open in Google Maps
CarriesSth 82
CrossesMississippi River 04
LocationAt Iowa State Line
RouteState Highway 82
CountyCrawford County
StateWisconsin
Coordinates43.36444, -91.21692
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating26.5 US tons
Inventory rating17.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckOpen grating
Main spans9
Design loadH 20
Structure length1,635 ft (498.3 m)
Longest span653 ft (199 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deck19 ft (5.6 m)

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic3,350 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.4 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Sth 82 over Mississippi River 04 built?

It was built in 1931, making it 94 years old in 2025.

What condition is Sth 82 over Mississippi River 04 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Sth 82 over Mississippi River 04 carry?

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

How long is Sth 82 over Mississippi River 04?

The structure is 1,635 ft (498.3 m) long with a longest span of 653 ft (199 m) and a deck 23 ft wide.

Who owns Sth 82 over Mississippi River 04?

It is owned by the State Highway Agency.