US Bridges

T 47 over Lac Qui Parle River

Fair

Yellow Medicine County, Minnesota · 0.5 MI N of JCT Csah 33 · Structure no. L8591

Built
1982
43 years old
Condition
Fair
inspected October 2022
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
15
1990 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 47 over Lac Qui Parle River is a concrete culvert carrying T 47 over Lac Qui Parle River in Yellow Medicine County, Minnesota. It was built in 1982, so it is 43 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 15 vehicles a day, projected to reach 15 by 2029. The structure is 46 ft (13.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 47
CrossesLac Qui Parle River
Location0.5 MI N of JCT Csah 33
RouteCounty Highway 47
Coordinates44.76758, -96.13414
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length46 ft (13.9 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1990)
Projected traffic15 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 47 over Lac Qui Parle River built?

It was built in 1982, making it 43 years old in 2025.

What condition is T 47 over Lac Qui Parle 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 2022.

How much traffic does T 47 over Lac Qui Parle River carry?

About 15 vehicles per day (1990 count).

How long is T 47 over Lac Qui Parle River?

The structure is 46 ft (13.9 m) long with a longest span of 13 ft (4.1 m).

Who owns T 47 over Lac Qui Parle River?

It is owned by the Town or Township Highway Agency.