US Bridges

216th Street over Ck

Fair

Brookings County, South Dakota · 4S & 3.3W Brookings · Structure no. 000000006137200

Built
1955
70 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
447
2022 count
Owner
County
County Highway Agency

About this bridge

216th Street over Ck is a concrete continuous slab carrying 216th Street over Ck 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 447 vehicles a day, roughly 3% of them trucks, projected to reach 447 by 2032. The structure is 54 ft (16.5 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Carries216th Street
CrossesCk
Location4S & 3.3W Brookings
RouteCounty Highway 0
Coordinates44.25386, -96.85498
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length54 ft (16.5 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic447 (2022)
Projected traffic447 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 216th Street over Ck built?

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

What condition is 216th Street over 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 September 2024.

How much traffic does 216th Street over Ck carry?

About 447 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 216th Street over Ck?

The structure is 54 ft (16.5 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns 216th Street over Ck?

It is owned by the County Highway Agency.