US Bridges

I 35 over BNSF RR

Fair

Pine County, Minnesota · 1.2 MI N of JCT TH 48 · Structure no. 9789

Built
1960
65 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
239 ft
3 main spans
Daily traffic
8,150
2016 count
Owner
State
State Highway Agency

About this bridge

I 35 over BNSF RR is a steel continuous stringer/multi-beam or girder carrying I 35 over BNSF RR in Pine County, Minnesota. It was built in 1960, so it is 65 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 8,150 vehicles a day, roughly 7% of them trucks, projected to reach 8,150 by 2036. The structure is 239 ft (72.8 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesI 35
CrossesBNSF RR
Location1.2 MI N of JCT TH 48
RouteInterstate 35
CountyPine County
StateMinnesota
Coordinates46.03221, -92.92541
Functional classRural 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 inspectionSeptember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67.7 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length239 ft (72.8 m)
Longest span87 ft (26.5 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,150 (2016)
Projected traffic8,150 by 2036
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed9.9 mi (16 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$740 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 35 over BNSF RR built?

It was built in 1960, making it 65 years old in 2025.

What condition is I 35 over BNSF RR 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 BNSF RR carry?

About 8,150 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is I 35 over BNSF RR?

The structure is 239 ft (72.8 m) long with a longest span of 87 ft (26.5 m) and a deck 35 ft wide.

Who owns I 35 over BNSF RR?

It is owned by the State Highway Agency.