US Bridges

Csah 9 over I 90

Fair

Nobles County, Minnesota · 11.1MI E of JCT TH 91 · Structure no. 53812

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
216 ft
4 main spans
Daily traffic
245
2019 count
Owner
State
State Highway Agency

About this bridge

Csah 9 over I 90 is a prestressed concrete stringer/multi-beam or girder carrying Csah 9 over I 90 in Nobles County, Minnesota. It was built in 1965, so it is 60 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 245 vehicles a day, projected to reach 260 by 2039. The structure is 216 ft (65.9 m) long and 33 ft wide.

CarriesCsah 9
CrossesI 90
Location11.1MI E of JCT TH 91
RouteCounty Highway 9
Coordinates43.63799, -95.71393
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating23.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length216 ft (65.9 m)
Longest span67 ft (20.5 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (2019)
Projected traffic260 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 9 over I 90 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Csah 9 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 May 2023.

How much traffic does Csah 9 over I 90 carry?

About 245 vehicles per day (2019 count).

How long is Csah 9 over I 90?

The structure is 216 ft (65.9 m) long with a longest span of 67 ft (20.5 m) and a deck 33 ft wide.

Who owns Csah 9 over I 90?

It is owned by the State Highway Agency.