US Bridges

M 34 over Buffalo River

Good

Clay County, Minnesota · 0.1 MI N of JCT TH 10 · Structure no. 14552

Built
2010
15 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete
Length
80 ft
3 main spans
Daily traffic
149
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 34 over Buffalo River is a concrete slab carrying M 34 over Buffalo River in Clay 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 149 vehicles a day, projected to reach 149 by 2030. The structure is 80 ft (24.4 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesM 34
CrossesBuffalo River
Location0.1 MI N of JCT TH 10
RouteCity Street 34
Coordinates46.8801, -96.30146
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.8 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span24 ft (7.2 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic149 (2010)
Projected traffic149 by 2030
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M 34 over Buffalo River built?

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

What condition is M 34 over Buffalo 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 December 2024.

How much traffic does M 34 over Buffalo River carry?

About 149 vehicles per day (2010 count).

How long is M 34 over Buffalo River?

The structure is 80 ft (24.4 m) long with a longest span of 24 ft (7.2 m) and a deck 35 ft wide.

Who owns M 34 over Buffalo River?

It is owned by the City or Municipal Highway Agency.