US Bridges

Csah 11 over I 90

Fair

Winona County, Minnesota · 1.9 MI E of JCT TH 76 · Structure no. 85828

Built
1969
56 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
288 ft
4 main spans
Daily traffic
720
2015 count
Owner
State
State Highway Agency

About this bridge

Csah 11 over I 90 is a prestressed concrete stringer/multi-beam or girder carrying Csah 11 over I 90 in Winona County, Minnesota. It was built in 1969, so it is 56 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 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 720 vehicles a day, projected to reach 720 by 2039. The structure is 288 ft (87.9 m) long and 40 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesI 90
Location1.9 MI E of JCT TH 76
RouteCounty Highway 11
CountyWinona County
StateMinnesota
Coordinates43.91036, -91.56039
Functional classRural Major Collector

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.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating23.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length288 ft (87.9 m)
Longest span86 ft (26.3 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2015)
Projected traffic720 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 11 over I 90 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Csah 11 over I 90 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 October 2024.

How much traffic does Csah 11 over I 90 carry?

About 720 vehicles per day (2015 count).

How long is Csah 11 over I 90?

The structure is 288 ft (87.9 m) long with a longest span of 86 ft (26.3 m) and a deck 40 ft wide.

Who owns Csah 11 over I 90?

It is owned by the State Highway Agency.