US Bridges

I 35 over CR 91

Fair

Freeborn County, Minnesota · 2.4 MI S of JCT TH 90 · Structure no. 24831

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
11,200
2019 count
Owner
State
State Highway Agency

About this bridge

I 35 over CR 91 is a prestressed concrete stringer/multi-beam or girder carrying I 35 over CR 91 in Freeborn County, Minnesota. It was built in 1971, so it is 54 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 11,200 vehicles a day, roughly 20% of them trucks, projected to reach 11,950 by 2039. The structure is 145 ft (44.3 m) long and 45 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesI 35
CrossesCR 91
Location2.4 MI S of JCT TH 90
RouteInterstate 35
CountyFreeborn County
StateMinnesota
Coordinates43.65134, -93.32201
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating29.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.3 m)
Longest span56 ft (17.1 m)
Deck width45 ft (13.6 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,200 (2019)
Projected traffic11,950 by 2039
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
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 35 over CR 91 built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 35 over CR 91 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 September 2023.

How much traffic does I 35 over CR 91 carry?

About 11,200 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is I 35 over CR 91?

The structure is 145 ft (44.3 m) long with a longest span of 56 ft (17.1 m) and a deck 45 ft wide.

Who owns I 35 over CR 91?

It is owned by the State Highway Agency.