US Bridges

216th Street over Big Sioux Rv Overflow

Fair

Brookings County, South Dakota · 4S & 2.8W Brookings · Structure no. 000000006142200

Built
1955
70 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
117 ft
5 main spans
Daily traffic
454
2022 count
Owner
County
County Highway Agency

About this bridge

216th Street over Big Sioux Rv Overflow is a concrete continuous slab carrying 216th Street over Big Sioux Rv Overflow in Brookings County, South Dakota. It was built in 1955, so it is 70 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 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 454 vehicles a day, roughly 3% of them trucks, projected to reach 454 by 2032. The structure is 117 ft (35.8 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries216th Street
CrossesBig Sioux Rv Overflow
Location4S & 2.8W Brookings
RouteCounty Highway 0
Coordinates44.25388, -96.84551
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.4 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length117 ft (35.8 m)
Longest span25 ft (7.7 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic454 (2022)
Projected traffic454 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 216th Street over Big Sioux Rv Overflow built?

It was built in 1955, making it 70 years old in 2025.

What condition is 216th 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 September 2024.

How much traffic does 216th Street over Big Sioux Rv Overflow carry?

About 454 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 216th Street over Big Sioux Rv Overflow?

The structure is 117 ft (35.8 m) long with a longest span of 25 ft (7.7 m) and a deck 28 ft wide.

Who owns 216th Street over Big Sioux Rv Overflow?

It is owned by the County Highway Agency.