US Bridges

31030 411th Avenue over Emanuel Creek

FairPosted for load

Bon Homme County, South Dakota · 1.7N&4.3W of Springfield · Structure no. 000000005097193

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
89 ft
3 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

31030 411th Avenue over Emanuel Creek is a steel stringer/multi-beam or girder carrying 31030 411th Avenue over Emanuel Creek in Bon Homme County, South Dakota. It was built in 1960, so it is 65 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2032. The structure is 89 ft (27.2 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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Carries31030 411th Avenue
CrossesEmanuel Creek
Location1.7N&4.3W of Springfield
CountyBon Homme County
StateSouth Dakota
Coordinates42.88924, -97.97545
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating18 US tons
Inventory rating13.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans3
Design loadUnknown
Structure length89 ft (27.2 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 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$1.4 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31030 411th Avenue over Emanuel Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is 31030 411th Avenue over Emanuel 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 May 2023.

How much traffic does 31030 411th Avenue over Emanuel Creek carry?

About 60 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 31030 411th Avenue over Emanuel Creek?

The structure is 89 ft (27.2 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns 31030 411th Avenue over Emanuel Creek?

It is owned by the County Highway Agency.