US Bridges

US 75 over Flandreau Creek

Fair

Pipestone County, Minnesota · 11.2 MI N of Pipestone · Structure no. 5297

Built
1936
89 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
52 ft
4 main spans
Daily traffic
1,223
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Flandreau Creek is a concrete culvert carrying US 75 over Flandreau Creek in Pipestone County, Minnesota. It was built in 1936, so it is 89 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.

It carries about 1,223 vehicles a day, roughly 18% of them trucks, projected to reach 1,150 by 2042. The structure is 52 ft (16 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesUS 75
CrossesFlandreau Creek
Location11.2 MI N of Pipestone
RouteU.S. Route 75
CountyPipestone County
StateMinnesota
Coordinates44.16309, -96.30791
Functional classRural Minor Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length52 ft (16 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,223 (2022)
Projected traffic1,150 by 2042
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$183 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 75 over Flandreau Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is US 75 over Flandreau 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 US 75 over Flandreau Creek carry?

About 1,223 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is US 75 over Flandreau Creek?

The structure is 52 ft (16 m) long with a longest span of 12 ft (3.7 m).

Who owns US 75 over Flandreau Creek?

It is owned by the State Highway Agency.