US Bridges

M 612 over US 10

Fair

Benton County, Minnesota · 0.9 MI N of JCT TH 23 · Structure no. 05005

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
294 ft
4 main spans
Daily traffic
6,500
2019 count
Owner
State
State Highway Agency

About this bridge

M 612 over US 10 is a prestressed concrete stringer/multi-beam or girder carrying M 612 over US 10 in Benton County, Minnesota. It was built in 1969, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,500 vehicles a day, projected to reach 6,200 by 2039. The structure is 294 ft (89.5 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 612
CrossesUS 10
Location0.9 MI N of JCT TH 23
RouteCity Street 612
CountyBenton County
StateMinnesota
Coordinates45.57774, -94.14747
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating26.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length294 ft (89.5 m)
Longest span87 ft (26.4 m)
Deck width51 ft (15.5 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2019)
Projected traffic6,200 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M 612 over US 10 built?

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

What condition is M 612 over US 10 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does M 612 over US 10 carry?

About 6,500 vehicles per day (2019 count).

How long is M 612 over US 10?

The structure is 294 ft (89.5 m) long with a longest span of 87 ft (26.4 m) and a deck 51 ft wide.

Who owns M 612 over US 10?

It is owned by the State Highway Agency.