US Bridges

Mn 43 over Miss Rvr RR Streets

Fair

Winona County, Minnesota · 2.5 MI N of JCT TH 61 · Structure no. 5900

Built
1941
84 years old, rebuilt 2019
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel Continuous
Length
2,292 ft
3 main spans
Daily traffic
4,905
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 43 over Miss Rvr RR Streets is a steel continuous truss - thru carrying Mn 43 over Miss Rvr RR Streets in Winona County, Minnesota. It was built in 1941 and reconstructed in 2019, so it is 84 years old, older than the Minnesota average of 38.5 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 4,905 vehicles a day, roughly 7% of them trucks, projected to reach 5,052 by 2042. The structure is 2,292 ft (698.5 m) long and 33 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

Location

Open in Google Maps
CarriesMn 43
CrossesMiss Rvr RR Streets
Location2.5 MI N of JCT TH 61
RouteState Highway 43
CountyWinona County
StateMinnesota
Coordinates44.05778, -91.63965
Functional classUrban 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.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+12 approach)
Design loadHL 93
Structure length2,292 ft (698.5 m)
Longest span450 ft (137.2 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic4,905 (2022)
Projected traffic5,052 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed65.2 mi (105 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Mn 43 over Miss Rvr RR Streets built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2019.

What condition is Mn 43 over Miss Rvr RR Streets 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 Mn 43 over Miss Rvr RR Streets carry?

About 4,905 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Mn 43 over Miss Rvr RR Streets?

The structure is 2,292 ft (698.5 m) long with a longest span of 450 ft (137.2 m) and a deck 33 ft wide.

Who owns Mn 43 over Miss Rvr RR Streets?

It is owned by the State Highway Agency.