US Bridges

394th Avenue over Creek

Poor

Beadle County, South Dakota · 0.5S of Broadland · Structure no. 000000003180102

Built
1940
85 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete
Length
53 ft
3 main spans
Daily traffic
213
2022 count
Owner
County
County Highway Agency

About this bridge

394th Avenue over Creek is a concrete slab carrying 394th Avenue over Creek in Beadle County, South Dakota. It was built in 1940, so it is 85 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 213 vehicles a day, roughly 3% of them trucks, projected to reach 213 by 2032. The structure is 53 ft (16.2 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Carries394th Avenue
CrossesCreek
Location0.5S of Broadland
RouteCounty Highway 0
Coordinates44.48377, -98.33629
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span17 ft (5.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic213 (2022)
Projected traffic213 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 394th Avenue over Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 394th Avenue over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does 394th Avenue over Creek carry?

About 213 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 394th Avenue over Creek?

The structure is 53 ft (16.2 m) long with a longest span of 17 ft (5.2 m) and a deck 27 ft wide.

Who owns 394th Avenue over Creek?

It is owned by the County Highway Agency.