US Bridges

127th Street over Hiddenwood Creek

FairPosted for load

Walworth County, South Dakota · 3N & 2.1E of Selby · Structure no. 000000065231030

Built
1954
71 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
124 ft
3 main spans
Daily traffic
28
2022 count
Owner
County
County Highway Agency

About this bridge

127th Street over Hiddenwood Creek is a steel stringer/multi-beam or girder carrying 127th Street over Hiddenwood Creek in Walworth County, South Dakota. It was built in 1954, so it is 71 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. Its operating status is: posted for load restriction.

It carries about 28 vehicles a day, roughly 2% of them trucks, projected to reach 28 by 2032. The structure is 124 ft (37.9 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries127th Street
CrossesHiddenwood Creek
Location3N & 2.1E of Selby
RouteCounty Highway 0
Coordinates45.5511, -99.99396
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 alignment6: Equal to present minimum criteria
Operating rating35.4 US tons
Inventory rating21.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length124 ft (37.9 m)
Longest span55 ft (16.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2022)
Projected traffic28 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 127th Street over Hiddenwood Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is 127th Street over Hiddenwood 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 September 2024.

How much traffic does 127th Street over Hiddenwood Creek carry?

About 28 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 127th Street over Hiddenwood Creek?

The structure is 124 ft (37.9 m) long with a longest span of 55 ft (16.8 m) and a deck 26 ft wide.

Who owns 127th Street over Hiddenwood Creek?

It is owned by the County Highway Agency.