US Bridges

M 645 over Bassett Creek

Good

Hennepin County, Minnesota · 0.6 MI W of JCT Csah 18 · Structure no. 27B33

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
630
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 645 over Bassett Creek is a concrete slab carrying M 645 over Bassett Creek in Hennepin County, Minnesota. It was built in 2010, so it is 15 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 630 vehicles a day, projected to reach 630 by 2039. The structure is 33 ft (10.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesM 645
CrossesBassett Creek
Location0.6 MI W of JCT Csah 18
RouteCity Street 645
Coordinates44.99429, -93.41289
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.2 US tons
Inventory rating46.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length33 ft (10.2 m)
Longest span32 ft (9.8 m)
Deck width40 ft (12.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2017)
Projected traffic630 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M 645 over Bassett Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is M 645 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 October 2024.

How much traffic does M 645 over Bassett Creek carry?

About 630 vehicles per day (2017 count).

How long is M 645 over Bassett Creek?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 40 ft wide.

Who owns M 645 over Bassett Creek?

It is owned by the City or Municipal Highway Agency.