US Bridges

Con 1946 over BNSF RR

Good

St. Louis County, Minnesota · 0.7 MI S of JCT TH 35 · Structure no. 69809

Built
1969
56 years old, rebuilt 2024
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
655 ft
5 main spans
Daily traffic
1,850
2019 count
Owner
State
State Highway Agency

About this bridge

Con 1946 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Con 1946 over BNSF RR in St. Louis County, Minnesota. It was built in 1969 and reconstructed in 2024, so it is 56 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,850 vehicles a day, projected to reach 500 by 2039. The structure is 655 ft (199.5 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCon 1946
CrossesBNSF RR
Location0.7 MI S of JCT TH 35
RouteInterstate 1946
Coordinates46.75681, -92.10812
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length655 ft (199.5 m)
Longest span144 ft (43.9 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2019)
Projected traffic500 by 2039
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
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$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Con 1946 over BNSF RR built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2024.

What condition is Con 1946 over BNSF RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Con 1946 over BNSF RR carry?

About 1,850 vehicles per day (2019 count).

How long is Con 1946 over BNSF RR?

The structure is 655 ft (199.5 m) long with a longest span of 144 ft (43.9 m) and a deck 26 ft wide.

Who owns Con 1946 over BNSF RR?

It is owned by the State Highway Agency.