US Bridges

I 90 over TH 59

Fair

Nobles County, Minnesota · At JCT TH 59 · Structure no. 53818

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
6,099
2022 count
Owner
State
State Highway Agency

About this bridge

I 90 over TH 59 is a prestressed concrete stringer/multi-beam or girder carrying I 90 over TH 59 in Nobles County, Minnesota. It was built in 1968, so it is 57 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 6,099 vehicles a day, roughly 15% of them trucks, projected to reach 5,750 by 2042. The structure is 153 ft (46.7 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI 90
CrossesTH 59
LocationAt JCT TH 59
RouteInterstate 90
CountyNobles County
StateMinnesota
Coordinates43.63781, -95.59352
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating86.4 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.7 m)
Longest span74 ft (22.5 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,099 (2022)
Projected traffic5,750 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 90 over TH 59 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I 90 over TH 59 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 I 90 over TH 59 carry?

About 6,099 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I 90 over TH 59?

The structure is 153 ft (46.7 m) long with a longest span of 74 ft (22.5 m) and a deck 41 ft wide.

Who owns I 90 over TH 59?

It is owned by the State Highway Agency.