US Bridges

M 57 over Bassett Creek

Good

Hennepin County, Minnesota · 0.5 MI S of JCT Csah 66 · Structure no. L9327

Built
1940
85 years old
Condition
Good
inspected September 2023
Type
Arch - Deck
Concrete
Length
50 ft
1 main span
Daily traffic
1,949
2022 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

M 57 over Bassett Creek is a concrete arch - deck carrying M 57 over Bassett Creek in Hennepin County, Minnesota. It was built in 1940, so it is 85 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 1,949 vehicles a day, roughly 4% of them trucks, projected to reach 4,530 by 2042. The structure is 50 ft (15.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 57
CrossesBassett Creek
Location0.5 MI S of JCT Csah 66
RouteCity Street 57
Coordinates44.9935, -93.32151
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
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.4 US tons
Inventory rating21.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span18 ft (5.5 m)
Deck width50 ft (15.2 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
CrossesWaterway
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$99 million
NavigationNo navigation control on waterway

Frequently asked questions

When was M 57 over Bassett Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is M 57 over Bassett Creek 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 2023.

How much traffic does M 57 over Bassett Creek carry?

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

How long is M 57 over Bassett Creek?

The structure is 50 ft (15.2 m) long with a longest span of 18 ft (5.5 m) and a deck 50 ft wide.

Who owns M 57 over Bassett Creek?

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