Structure 42019060 · Lincoln County, SD

274th Street over Beaver Creek

Carries 274th Street over Beaver Creek, 4n & 0.1w Of Lennox.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 6/9Substructure 4/9 · sets the rating

31 ft end to end, longest span 15 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built193591 years old
Length31.2 ft9.5 m
Daily traffic67counted 2022
Last inspectedMay 2024every 24 months

Location

StateSouth Dakota
CountyLincoln
Location4n & 0.1w Of Lennox
Carries274th Street
CrossesBeaver Creek
Coordinates43.41759, -96.88689

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length31.2 ft (9.5 m)
Max Span14.8 ft (4.5 m)
Deck Width19.4 ft (5.9 m)
Deck Area56.0 sq m
Main Spans2
Year Built1935

Traffic

Avg Daily Traffic67 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000042019060

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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