US Bridges

417th Avenue over Pearl Creek

Fair

Beadle County, South Dakota · 12.5N & 1W of Iroquois · Structure no. 000000003410055

Built
2009
16 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
46 ft
3 main spans
Daily traffic
56
2022 count
Owner
County
County Highway Agency

About this bridge

417th Avenue over Pearl Creek is a steel culvert carrying 417th Avenue over Pearl Creek in Beadle County, South Dakota. It was built in 2009, so it is 16 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 56 vehicles a day, roughly 2% of them trucks, projected to reach 56 by 2032. The structure is 46 ft (14 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries417th Avenue
CrossesPearl Creek
Location12.5N & 1W of Iroquois
Coordinates44.55331, -97.8765
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.8 US tons
Inventory rating74.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length46 ft (14 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2022)
Projected traffic56 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 417th Avenue over Pearl Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is 417th Avenue over Pearl 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 August 2023.

How much traffic does 417th Avenue over Pearl Creek carry?

About 56 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 417th Avenue over Pearl Creek?

The structure is 46 ft (14 m) long with a longest span of 8 ft (2.4 m).

Who owns 417th Avenue over Pearl Creek?

It is owned by the County Highway Agency.