US Bridges

413th Avenue over Middle Pearl Creek

PoorPosted for load

Beadle County, South Dakota · 5.2S & 4E of Cavour · Structure no. 000000003370232

Built
1930
95 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
2 main spans
Daily traffic
119
2022 count
Owner
County
County Highway Agency

About this bridge

413th Avenue over Middle Pearl Creek is a steel stringer/multi-beam or girder carrying 413th Avenue over Middle Pearl Creek in Beadle County, South Dakota. It was built in 1930, so it is 95 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 119 vehicles a day, roughly 3% of them trucks, projected to reach 119 by 2032. The structure is 52 ft (15.8 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries413th Avenue
CrossesMiddle Pearl Creek
Location5.2S & 4E of Cavour
RouteCounty Highway 0
Coordinates44.29241, -97.95412
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.6 US tons
Inventory rating12.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span25 ft (7.6 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2022)
Projected traffic119 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.6 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 413th Avenue over Middle Pearl Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is 413th Avenue 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 413th Avenue over Middle Pearl Creek carry?

About 119 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 413th Avenue over Middle Pearl Creek?

The structure is 52 ft (15.8 m) long with a longest span of 25 ft (7.6 m) and a deck 19 ft wide.

Who owns 413th Avenue over Middle Pearl Creek?

It is owned by the County Highway Agency.