US Bridges

26922 413 Ave. over South Fork Twelve Mile C

Fair

Hutchinson County, South Dakota · 6.7N 3.0E Parkston · Structure no. 000000034090013

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Channel Beam
Concrete
Length
62 ft
2 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

26922 413 Ave. over South Fork Twelve Mile C is a concrete channel beam carrying 26922 413 Ave. over South Fork Twelve Mile C in Hutchinson County, South Dakota. It was built in 1974, so it is 51 years old, older 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 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 62 ft (18.9 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries26922 413 Ave.
CrossesSouth Fork Twelve Mile C
Location6.7N 3.0E Parkston
RouteCounty Highway 0
Coordinates43.48188, -97.93767
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span31 ft (9.3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2032
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 26922 413 Ave. over South Fork Twelve Mile C built?

It was built in 1974, making it 51 years old in 2025.

What condition is 26922 413 Ave. over South Fork Twelve Mile C 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 May 2024.

How much traffic does 26922 413 Ave. over South Fork Twelve Mile C carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 26922 413 Ave. over South Fork Twelve Mile C?

The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.3 m) and a deck 26 ft wide.

Who owns 26922 413 Ave. over South Fork Twelve Mile C?

It is owned by the County Highway Agency.