US Bridges

39390 291st Street over Creek

FairPosted for load

Charles Mix County, South Dakota · 6.0N & 1.1W of Wagner · Structure no. 000000012499230

Built
1935
90 years old, rebuilt 1988
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
48
2022 count
Owner
County
County Highway Agency

About this bridge

39390 291st Street over Creek is a steel stringer/multi-beam or girder carrying 39390 291st Street over Creek in Charles Mix County, South Dakota. It was built in 1935 and reconstructed in 1988, so it is 90 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 5 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 48 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2032. The structure is 30 ft (9.1 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries39390 291st Street
CrossesCreek
Location6.0N & 1.1W of Wagner
RouteCounty Highway 0
Coordinates43.16905, -98.30833
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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.1 US tons
Inventory rating23.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2022)
Projected traffic48 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$133,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 39390 291st Street over Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1988.

What condition is 39390 291st Street over 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 2023.

How much traffic does 39390 291st Street over Creek carry?

About 48 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 39390 291st Street over Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 16 ft wide.

Who owns 39390 291st Street over Creek?

It is owned by the County Highway Agency.