US Bridges

Sth 25 over Mississippi River 09

Fair

Buffalo County, Wisconsin · Minnesota State Line · Structure no. B06007900000000

Built
1988
37 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
2,461 ft
1 main span
Daily traffic
4,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 25 over Mississippi River 09 is a steel truss - thru carrying Sth 25 over Mississippi River 09 in Buffalo County, Wisconsin. It was built in 1988, so it is 37 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 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 4,500 vehicles a day, projected to reach 5,400 by 2043. The structure is 2,461 ft (750.2 m) long and 43 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

Location

Open in Google Maps
CarriesSth 25
CrossesMississippi River 09
LocationMinnesota State Line
RouteState Highway 25
CountyBuffalo County
StateWisconsin
Coordinates44.38356, -92.03492
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating26.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+18 approach)
Design loadHS 20
Structure length2,461 ft (750.2 m)
Longest span470 ft (143.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic4,500 (2022)
Projected traffic5,400 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed55.9 mi (90 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Sth 25 over Mississippi River 09 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Sth 25 over Mississippi River 09 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 June 2024.

How much traffic does Sth 25 over Mississippi River 09 carry?

About 4,500 vehicles per day (2022 count).

How long is Sth 25 over Mississippi River 09?

The structure is 2,461 ft (750.2 m) long with a longest span of 470 ft (143.3 m) and a deck 43 ft wide.

Who owns Sth 25 over Mississippi River 09?

It is owned by the State Highway Agency.