US Bridges

469th Avenue over Ck

Good

Brookings County, South Dakota · 5.5S & 2W Brookings · Structure no. 000000006150215

Built
2023
2 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
78 ft
6 main spans
Daily traffic
684
2022 count
Owner
County
County Highway Agency

About this bridge

469th Avenue over Ck is a concrete culvert carrying 469th Avenue over Ck in Brookings County, South Dakota. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 684 vehicles a day, roughly 2% of them trucks, projected to reach 684 by 2034. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries469th Avenue
CrossesCk
Location5.5S & 2W Brookings
RouteCounty Highway 0
Coordinates44.23189, -96.82819
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.5 US tons
Inventory rating37.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHL 93
Structure length78 ft (23.8 m)
Longest span12 ft (3.7 m)
Deck width32 ft (9.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic684 (2022)
Projected traffic684 by 2034
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 469th Avenue over Ck built?

It was built in 2023, making it 2 years old in 2025.

What condition is 469th Avenue 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 September 2024.

How much traffic does 469th Avenue over Ck carry?

About 684 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 469th Avenue over Ck?

The structure is 78 ft (23.8 m) long with a longest span of 12 ft (3.7 m) and a deck 32 ft wide.

Who owns 469th Avenue over Ck?

It is owned by the County Highway Agency.