US Bridges

M 7 over Cannon River

GoodPosted for load

Le Sueur County, Minnesota · 0.3 MI N of JCT Csah 14 · Structure no. 40519

Built
2000
25 years old
Condition
Good
inspected October 2024
Type
Slab
Wood or Timber
Length
74 ft
3 main spans
Daily traffic
70
1999 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 7 over Cannon River is a wood or timber slab carrying M 7 over Cannon River in Le Sueur County, Minnesota. It was built in 2000, so it is 25 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. Its operating status is: posted for load restriction.

It carries about 70 vehicles a day, projected to reach 70 by 2029. The structure is 74 ft (22.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesM 7
CrossesCannon River
Location0.3 MI N of JCT Csah 14
RouteCity Street 7
Coordinates44.22428, -93.57302
Functional classRural Local

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 statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 25 or greater
Structure length74 ft (22.6 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (1999)
Projected traffic70 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was M 7 over Cannon River built?

It was built in 2000, making it 25 years old in 2025.

What condition is M 7 over Cannon 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 7 over Cannon River carry?

About 70 vehicles per day (1999 count).

How long is M 7 over Cannon River?

The structure is 74 ft (22.6 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns M 7 over Cannon River?

It is owned by the City or Municipal Highway Agency.