US Bridges

212th Street over Big Sioux Rv

Good

Brookings County, South Dakota · 3W Brookings · Structure no. 000000006129160

Built
1991
34 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
105 ft
3 main spans
Daily traffic
92
2022 count
Owner
County
County Highway Agency

About this bridge

212th Street over Big Sioux Rv is a concrete slab carrying 212th Street over Big Sioux Rv in Brookings County, South Dakota. It was built in 1991, so it is 34 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 92 vehicles a day, roughly 2% of them trucks, projected to reach 92 by 2032. The structure is 105 ft (32 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries212th Street
CrossesBig Sioux Rv
Location3W Brookings
RouteCounty Highway 0
Coordinates44.31165, -96.87063
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length105 ft (32 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2022)
Projected traffic92 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$2.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 212th Street over Big Sioux Rv built?

It was built in 1991, making it 34 years old in 2025.

What condition is 212th Street over Big Sioux Rv in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does 212th Street over Big Sioux Rv carry?

About 92 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 212th Street over Big Sioux Rv?

The structure is 105 ft (32 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns 212th Street over Big Sioux Rv?

It is owned by the County Highway Agency.