US Bridges

M 57 over BNSF RR

Good

Hennepin County, Minnesota · 0.1 MI S of JCT Csah 66 · Structure no. 27678

Built
1990
35 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
108 ft
3 main spans
Daily traffic
1,949
2022 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

M 57 over BNSF RR is a concrete continuous slab carrying M 57 over BNSF RR in Hennepin County, Minnesota. It was built in 1990, so it is 35 years old, younger 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 1,949 vehicles a day, roughly 4% of them trucks, projected to reach 4,530 by 2042. The structure is 108 ft (32.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 57
CrossesBNSF RR
Location0.1 MI S of JCT Csah 66
RouteCity Street 57
Coordinates44.99933, -93.32269
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
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 rating61.2 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span37 ft (11.4 m)
Deck width45 ft (13.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,949 (2022)
Projected traffic4,530 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byLocal Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$210 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was M 57 over BNSF RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is M 57 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 2023.

How much traffic does M 57 over BNSF RR carry?

About 1,949 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is M 57 over BNSF RR?

The structure is 108 ft (32.9 m) long with a longest span of 37 ft (11.4 m) and a deck 45 ft wide.

Who owns M 57 over BNSF RR?

It is owned by the Local Park, Forest, or Reservation Agency.