US Bridges

Bixby Road over Thunder Butte Ck

Fair

Perkins County, South Dakota · 4.6 W 0.9 S Bison · Structure no. 000000053190299

Built
1963
62 years old
Condition
Fair
inspected May 2021
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
172
2022 count
Owner
County
County Highway Agency

About this bridge

Bixby Road over Thunder Butte Ck is a concrete continuous culvert carrying Bixby Road over Thunder Butte Ck in Perkins County, South Dakota. It was built in 1963, so it is 62 years old, older 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 172 vehicles a day, roughly 3% of them trucks, projected to reach 172 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesBixby Road
CrossesThunder Butte Ck
Location4.6 W 0.9 S Bison
RouteCounty Highway 0
CountyPerkins County
StateSouth Dakota
Coordinates45.51595, -102.56036
Functional classRural Major Collector

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 inspectionMay 2021
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length29 ft (8.7 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 traffic172 (2022)
Projected traffic172 by 2032
Trucks3%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bixby Road over Thunder Butte Ck built?

It was built in 1963, making it 62 years old in 2025.

What condition is Bixby Road over Thunder Butte 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 May 2021.

How much traffic does Bixby Road over Thunder Butte Ck carry?

About 172 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Bixby Road over Thunder Butte Ck?

The structure is 29 ft (8.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Bixby Road over Thunder Butte Ck?

It is owned by the County Highway Agency.