US Bridges

469th Avenue over North Deer Ck

Good

Brookings County, South Dakota · 2W & 8.7N Brookings · Structure no. 000000006150073

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
92
2022 count
Owner
County
County Highway Agency

About this bridge

469th Avenue over North Deer Ck is a concrete continuous culvert carrying 469th Avenue over North Deer Ck in Brookings County, South Dakota. It was built in 1990, so it is 35 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 92 vehicles a day, roughly 2% of them trucks, projected to reach 92 by 2032. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries469th Avenue
CrossesNorth Deer Ck
Location2W & 8.7N Brookings
RouteCounty Highway 0
Coordinates44.44068, -96.82806
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2022)
Projected traffic92 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$853,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 469th Avenue over North Deer Ck built?

It was built in 1990, making it 35 years old in 2025.

What condition is 469th Avenue over North Deer 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 North Deer Ck carry?

About 92 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 469th Avenue over North Deer Ck?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns 469th Avenue over North Deer Ck?

It is owned by the County Highway Agency.