US Bridges

CR 139 over Sauk River

Fair

Stearns County, Minnesota · 0.1 MI N of JCT TH 23 · Structure no. 73526

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
3 main spans
Daily traffic
510
2019 count
Owner
County
County Highway Agency

About this bridge

CR 139 over Sauk River is a steel continuous stringer/multi-beam or girder carrying CR 139 over Sauk River in Stearns County, Minnesota. It was built in 1978, so it is 47 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 510 vehicles a day, projected to reach 455 by 2039. The structure is 227 ft (69.1 m) long and 41 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesCR 139
CrossesSauk River
Location0.1 MI N of JCT TH 23
RouteCounty Highway 139
Coordinates45.47435, -94.34044
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.6 US tons
Inventory rating39.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length227 ft (69.1 m)
Longest span85 ft (25.9 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2019)
Projected traffic455 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 139 over Sauk River built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR 139 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 January 2024.

How much traffic does CR 139 over Sauk River carry?

About 510 vehicles per day (2019 count).

How long is CR 139 over Sauk River?

The structure is 227 ft (69.1 m) long with a longest span of 85 ft (25.9 m) and a deck 41 ft wide.

Who owns CR 139 over Sauk River?

It is owned by the County Highway Agency.