US Bridges

212th Street over Middle Pearl Creek

PoorPosted for load

Beadle County, South Dakota · 4S & 3.8W of Iroquois · Structure no. 000000003382220

Built
1928
97 years old
Condition
Poor
inspected August 2023
Type
Slab
Concrete Continuous
Length
44 ft
4 main spans
Daily traffic
56
2022 count
Owner
County
County Highway Agency

About this bridge

212th Street over Middle Pearl Creek is a concrete continuous slab carrying 212th Street over Middle Pearl Creek in Beadle County, South Dakota. It was built in 1928, so it is 97 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 3 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 56 vehicles a day, roughly 2% of them trucks, projected to reach 56 by 2032. The structure is 44 ft (13.4 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries212th Street
CrossesMiddle Pearl Creek
Location4S & 3.8W of Iroquois
Coordinates44.31071, -97.92941
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating3 US tons
Inventory rating3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span11 ft (3.4 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2022)
Projected traffic56 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$907,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 212th Street over Middle Pearl Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is 212th Street over Middle Pearl Creek 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 August 2023.

How much traffic does 212th Street over Middle Pearl Creek carry?

About 56 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 212th Street over Middle Pearl Creek?

The structure is 44 ft (13.4 m) long with a longest span of 11 ft (3.4 m) and a deck 22 ft wide.

Who owns 212th Street over Middle Pearl Creek?

It is owned by the County Highway Agency.