US Bridges

US 12 over BNSF Rail

Good

Swift County, Minnesota · 1.0 MI SE of JCT Csah 6 · Structure no. 76005

Built
1977
48 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
271 ft
3 main spans
Daily traffic
4,250
2019 count
Owner
State
State Highway Agency

About this bridge

US 12 over BNSF Rail is a prestressed concrete stringer/multi-beam or girder carrying US 12 over BNSF Rail in Swift County, Minnesota. It was built in 1977, so it is 48 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,250 vehicles a day, roughly 9% of them trucks, projected to reach 3,700 by 2039. The structure is 271 ft (82.5 m) long and 50 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS 12
CrossesBNSF Rail
Location1.0 MI SE of JCT Csah 6
RouteU.S. Route 12
Coordinates45.18279, -95.29791
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88.8 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length271 ft (82.5 m)
Longest span94 ft (28.8 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,250 (2019)
Projected traffic3,700 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 US 12 over BNSF Rail built?

It was built in 1977, making it 48 years old in 2025.

What condition is US 12 over BNSF Rail 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 September 2024.

How much traffic does US 12 over BNSF Rail carry?

About 4,250 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is US 12 over BNSF Rail?

The structure is 271 ft (82.5 m) long with a longest span of 94 ft (28.8 m) and a deck 50 ft wide.

Who owns US 12 over BNSF Rail?

It is owned by the State Highway Agency.