US Bridges

T 171 over Belle Creek

FairPosted for load

Goodhue County, Minnesota · 0.2 MI E of JCT Csah 8 · Structure no. 25510

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
81 ft
3 main spans
Daily traffic
40
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 171 over Belle Creek is a prestressed concrete channel beam carrying T 171 over Belle Creek in Goodhue County, Minnesota. It was built in 1968, so it is 57 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, projected to reach 40 by 2029. The structure is 81 ft (24.8 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT 171
CrossesBelle Creek
Location0.2 MI E of JCT Csah 8
RouteCounty Highway 171
Coordinates44.43812, -92.76678
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.9 US tons
Inventory rating24.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length81 ft (24.8 m)
Longest span31 ft (9.5 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1986)
Projected traffic40 by 2029
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

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 171 over Belle Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is T 171 over Belle Creek 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 2024.

How much traffic does T 171 over Belle Creek carry?

About 40 vehicles per day (1986 count).

How long is T 171 over Belle Creek?

The structure is 81 ft (24.8 m) long with a longest span of 31 ft (9.5 m) and a deck 25 ft wide.

Who owns T 171 over Belle Creek?

It is owned by the Town or Township Highway Agency.