US Bridges

154 Street over Big Sioux Rv Overflow

Fair

Grant County, South Dakota · 3N & 12.8W S Shore · Structure no. 000000026022120

Built
1992
33 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
52
2022 count
Owner
County
County Highway Agency

About this bridge

154 Street over Big Sioux Rv Overflow is a concrete continuous culvert carrying 154 Street over Big Sioux Rv Overflow in Grant County, South Dakota. It was built in 1992, so it is 33 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 5 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 52 vehicles a day, roughly 2% of them trucks, projected to reach 52 by 2032. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries154 Street
CrossesBig Sioux Rv Overflow
Location3N & 12.8W S Shore
RouteCounty Highway 0
Coordinates45.15169, -97.18181
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
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 traffic52 (2022)
Projected traffic52 by 2032
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$20,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 154 Street over Big Sioux Rv Overflow built?

It was built in 1992, making it 33 years old in 2025.

What condition is 154 Street over Big Sioux Rv Overflow 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 August 2024.

How much traffic does 154 Street over Big Sioux Rv Overflow carry?

About 52 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 154 Street over Big Sioux Rv Overflow?

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

Who owns 154 Street over Big Sioux Rv Overflow?

It is owned by the County Highway Agency.