US Bridges

Mn 29 over Chippewa River

Fair

Swift County, Minnesota · 2.0 MI N of JCT US 12 · Structure no. 76016

Built
2023
2 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
3 main spans
Daily traffic
1,427
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 29 over Chippewa River is a prestressed concrete stringer/multi-beam or girder carrying Mn 29 over Chippewa River in Swift County, Minnesota. It was built in 2023, so it is 2 years old, younger 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 1,427 vehicles a day, roughly 8% of them trucks, projected to reach 2,300 by 2042. The structure is 192 ft (58.4 m) long and 43 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesMn 29
CrossesChippewa River
Location2.0 MI N of JCT US 12
RouteState Highway 29
CountySwift County
StateMinnesota
Coordinates45.3419, -95.60317
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length192 ft (58.4 m)
Longest span96 ft (29.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,427 (2022)
Projected traffic2,300 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 29 over Chippewa River built?

It was built in 2023, making it 2 years old in 2025.

What condition is Mn 29 over Chippewa River 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 2024.

How much traffic does Mn 29 over Chippewa River carry?

About 1,427 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Mn 29 over Chippewa River?

The structure is 192 ft (58.4 m) long with a longest span of 96 ft (29.4 m) and a deck 43 ft wide.

Who owns Mn 29 over Chippewa River?

It is owned by the State Highway Agency.