US Bridges

M 67 over Big Cottonwood River

Good

Brown County, Minnesota · 0.1 MI S of JCT Csah 3 · Structure no. 08546

Built
2005
20 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
1,901
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 67 over Big Cottonwood River is a concrete continuous slab carrying M 67 over Big Cottonwood River in Brown County, Minnesota. It was built in 2005, so it is 20 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 1,901 vehicles a day, projected to reach 1,901 by 2029. The structure is 161 ft (49.2 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesM 67
CrossesBig Cottonwood River
Location0.1 MI S of JCT Csah 3
RouteCity Street 67
Coordinates44.23777, -94.97446
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length161 ft (49.2 m)
Longest span62 ft (18.9 m)
Deck width45 ft (13.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,901 (2004)
Projected traffic1,901 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M 67 over Big Cottonwood River built?

It was built in 2005, making it 20 years old in 2025.

What condition is M 67 over Big Cottonwood River 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 67 over Big Cottonwood River carry?

About 1,901 vehicles per day (2004 count).

How long is M 67 over Big Cottonwood River?

The structure is 161 ft (49.2 m) long with a longest span of 62 ft (18.9 m) and a deck 45 ft wide.

Who owns M 67 over Big Cottonwood River?

It is owned by the City or Municipal Highway Agency.