US Bridges

T 172 over Sauk River

GoodPosted for load

Stearns County, Minnesota · 0.5 MI E of JCT Csah 10 · Structure no. 73519

Built
1977
48 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
152 ft
4 main spans
Daily traffic
50
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 172 over Sauk River is a wood or timber stringer/multi-beam or girder carrying T 172 over Sauk River in Stearns County, Minnesota. It was built in 1977, so it is 48 years old, older 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 152 ft (46.3 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesT 172
CrossesSauk River
Location0.5 MI E of JCT Csah 10
RouteCounty Highway 172
Coordinates45.49872, -94.62947
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 protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23 US tons
Inventory rating17.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span38 ft (11.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1986)
Projected traffic50 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 172 over Sauk River built?

It was built in 1977, making it 48 years old in 2025.

What condition is T 172 over Sauk 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 T 172 over Sauk River carry?

About 50 vehicles per day (1986 count).

How long is T 172 over Sauk River?

The structure is 152 ft (46.3 m) long with a longest span of 38 ft (11.6 m) and a deck 30 ft wide.

Who owns T 172 over Sauk River?

It is owned by the Town or Township Highway Agency.