US Bridges

T 56 over S Fk Yellow Bank River

FairPosted for load

Lac qui Parle County, Minnesota · 1.7 MI E of JCT Csah 7 · Structure no. 37528

Built
1979
46 years old
Condition
Fair
inspected August 2024
Type
Slab
Wood or Timber
Length
115 ft
4 main spans
Daily traffic
45
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 56 over S Fk Yellow Bank River is a wood or timber slab carrying T 56 over S Fk Yellow Bank River in Lac qui Parle County, Minnesota. It was built in 1979, so it is 46 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 45 vehicles a day, projected to reach 45 by 2029. The structure is 115 ft (35.1 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 56
CrossesS Fk Yellow Bank River
Location1.7 MI E of JCT Csah 7
RouteCounty Highway 56
Coordinates45.12469, -96.37995
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.3 US tons
Inventory rating33.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span32 ft (9.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (1973)
Projected traffic45 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 56 over S Fk Yellow Bank River built?

It was built in 1979, making it 46 years old in 2025.

What condition is T 56 over S Fk Yellow Bank 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 August 2024.

How much traffic does T 56 over S Fk Yellow Bank River carry?

About 45 vehicles per day (1973 count).

How long is T 56 over S Fk Yellow Bank River?

The structure is 115 ft (35.1 m) long with a longest span of 32 ft (9.7 m) and a deck 26 ft wide.

Who owns T 56 over S Fk Yellow Bank River?

It is owned by the Town or Township Highway Agency.