US Bridges

408th Ave over Ck

Good

Davison County, South Dakota · 1.4MI S & 1MI W Mitchell · Structure no. 000000018140114

Built
2001
24 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
742
2022 count
Owner
County
County Highway Agency

About this bridge

408th Ave over Ck is a concrete culvert carrying 408th Ave over Ck in Davison County, South Dakota. It was built in 2001, so it is 24 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 742 vehicles a day, roughly 3% of them trucks, projected to reach 742 by 2032. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries408th Ave
CrossesCk
Location1.4MI S & 1MI W Mitchell
RouteCounty Highway 0
Coordinates43.68165, -98.04659
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating73.4 US tons
Inventory rating56.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic742 (2022)
Projected traffic742 by 2032
Trucks3%
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 408th Ave over Ck built?

It was built in 2001, making it 24 years old in 2025.

What condition is 408th Ave over Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does 408th Ave over Ck carry?

About 742 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 408th Ave over Ck?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns 408th Ave over Ck?

It is owned by the County Highway Agency.