US Bridges

Ut 9132 over ST Louis River

Fair

St. Louis County, Minnesota · 2.0 MI E of JCT TH 53 · Structure no. 69538

Built
1986
39 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
203 ft
3 main spans
Daily traffic
305
2003 count
Owner
County
County Highway Agency

About this bridge

Ut 9132 over ST Louis River is a prestressed concrete stringer/multi-beam or girder carrying Ut 9132 over ST Louis River in St. Louis County, Minnesota. It was built in 1986, so it is 39 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 305 vehicles a day, projected to reach 305 by 2029. The structure is 203 ft (61.9 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUt 9132
CrossesST Louis River
Location2.0 MI E of JCT TH 53
RouteCounty Highway 9132
Coordinates47.37166, -92.46679
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length203 ft (61.9 m)
Longest span67 ft (20.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic305 (2003)
Projected traffic305 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ut 9132 over ST Louis River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ut 9132 over ST Louis River 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 2023.

How much traffic does Ut 9132 over ST Louis River carry?

About 305 vehicles per day (2003 count).

How long is Ut 9132 over ST Louis River?

The structure is 203 ft (61.9 m) long with a longest span of 67 ft (20.5 m) and a deck 35 ft wide.

Who owns Ut 9132 over ST Louis River?

It is owned by the County Highway Agency.