US Bridges

US 71 over Sauk River

Fair

Stearns County, Minnesota · 1.4 MI N of JCT TH 94 · Structure no. 5428

Built
1935
90 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
171 ft
3 main spans
Daily traffic
9,357
2022 count
Owner
State
State Highway Agency

About this bridge

US 71 over Sauk River is a steel continuous stringer/multi-beam or girder carrying US 71 over Sauk River in Stearns County, Minnesota. It was built in 1935, so it is 90 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 9,357 vehicles a day, roughly 9% of them trucks, projected to reach 10,200 by 2042. The structure is 171 ft (52.2 m) long and 54 ft wide. If it were closed, the detour would be 93.2 mi (150 km).

CarriesUS 71
CrossesSauk River
Location1.4 MI N of JCT TH 94
RouteU.S. Route 71
Coordinates45.74022, -94.95203
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating72.4 US tons
Inventory rating43.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length171 ft (52.2 m)
Longest span42 ft (12.9 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,357 (2022)
Projected traffic10,200 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed93.2 mi (150 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 71 over Sauk River built?

It was built in 1935, making it 90 years old in 2025.

What condition is US 71 over Sauk 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 October 2023.

How much traffic does US 71 over Sauk River carry?

About 9,357 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is US 71 over Sauk River?

The structure is 171 ft (52.2 m) long with a longest span of 42 ft (12.9 m) and a deck 54 ft wide.

Who owns US 71 over Sauk River?

It is owned by the State Highway Agency.