US Bridges

112th Street over Willow Creek

Fair

Brown County, South Dakota · 10.8W & 2.0N of Barnard · Structure no. 000000007002120

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
24 ft
3 main spans
Daily traffic
98
2022 count
Owner
County
County Highway Agency

About this bridge

112th Street over Willow Creek is a steel culvert carrying 112th Street over Willow Creek in Brown County, South Dakota. It was built in 2006, so it is 19 years old, younger than the South Dakota average of 48.9 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 98 vehicles a day, roughly 2% of them trucks, projected to reach 98 by 2032. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries112th Street
CrossesWillow Creek
Location10.8W & 2.0N of Barnard
Coordinates45.76523, -98.72158
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length24 ft (7.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2022)
Projected traffic98 by 2032
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty 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 112th Street over Willow Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is 112th Street over Willow 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 July 2024.

How much traffic does 112th Street over Willow Creek carry?

About 98 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 112th Street over Willow Creek?

The structure is 24 ft (7.2 m) long with a longest span of 6 ft (1.8 m).

Who owns 112th Street over Willow Creek?

It is owned by the County Highway Agency.