US Bridges

210th Street over Big Sioux Rv

PoorPosted for load

Brookings County, South Dakota · 1N & 1.8E Volga · Structure no. 000000006118140

Built
1907
118 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
72 ft
1 main span
Daily traffic
92
2022 count
Owner
County
County Highway Agency

About this bridge

210th Street over Big Sioux Rv is a steel truss - thru carrying 210th Street over Big Sioux Rv in Brookings County, South Dakota. It was built in 1907, so it is 118 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 92 vehicles a day, roughly 2% of them trucks, projected to reach 92 by 2032. The structure is 72 ft (22 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries210th Street
CrossesBig Sioux Rv
Location1N & 1.8E Volga
RouteCounty Highway 0
Coordinates44.34064, -96.89292
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating7.1 US tons
Inventory rating4.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length72 ft (22 m)
Longest span70 ft (21.2 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2022)
Projected traffic92 by 2032
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 210th Street over Big Sioux Rv built?

It was built in 1907, making it 118 years old in 2025.

What condition is 210th Street over Big Sioux Rv in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does 210th Street over Big Sioux Rv carry?

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

How long is 210th Street over Big Sioux Rv?

The structure is 72 ft (22 m) long with a longest span of 70 ft (21.2 m) and a deck 16 ft wide.

Who owns 210th Street over Big Sioux Rv?

It is owned by the County Highway Agency.