US Bridges

303rd Avenue over Creek

Fair

Walworth County, South Dakota · 4.6S of Akaska · Structure no. 000000065170226

Built
1998
27 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
99
2022 count
Owner
County
County Highway Agency

About this bridge

303rd Avenue over Creek is a steel culvert carrying 303rd Avenue over Creek in Walworth County, South Dakota. It was built in 1998, so it is 27 years old, younger 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 99 vehicles a day, roughly 10% of them trucks, projected to reach 99 by 2032. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries303rd Avenue
CrossesCreek
Location4.6S of Akaska
RouteCounty Highway 0
Coordinates45.26643, -100.12016
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating106.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2022)
Projected traffic99 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 303rd Avenue over Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is 303rd Avenue 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 September 2024.

How much traffic does 303rd Avenue over Creek carry?

About 99 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 303rd Avenue over Creek?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m).

Who owns 303rd Avenue over Creek?

It is owned by the County Highway Agency.