US Bridges

331 Avenue over Buffalo Ck

Fair

Tripp County, South Dakota · 11.5E 0.5N Wewela · Structure no. 000000062350522

Built
2020
5 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
31
2022 count
Owner
County
County Highway Agency

About this bridge

331 Avenue over Buffalo Ck is a concrete culvert carrying 331 Avenue over Buffalo Ck in Tripp County, South Dakota. It was built in 2020, so it is 5 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 31 vehicles a day, roughly 2% of them trucks, projected to reach 31 by 2032. The structure is 29 ft (8.7 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries331 Avenue
CrossesBuffalo Ck
Location11.5E 0.5N Wewela
RouteCounty Highway 0
CountyTripp County
StateSouth Dakota
Coordinates43.02098, -99.55389
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 48 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 alignment6: Equal to present minimum criteria
Operating rating46.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width24 ft (7.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2022)
Projected traffic31 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 331 Avenue over Buffalo Ck built?

It was built in 2020, making it 5 years old in 2025.

What condition is 331 Avenue over Buffalo Ck 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 June 2023.

How much traffic does 331 Avenue over Buffalo Ck carry?

About 31 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 331 Avenue over Buffalo Ck?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m) and a deck 24 ft wide.

Who owns 331 Avenue over Buffalo Ck?

It is owned by the County Highway Agency.