Structure 14061000 · Clay County, SD

Sd046 over West Fork Frog Ck

Carries Sd046 over West Fork Frog Ck, 2.2 E Jct Sd 19 N.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 39 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built20215 years old
Length38.7 ft11.8 m
Daily traffic2,559counted 2024
Last inspectedOctober 2024every 48 months

Location

StateSouth Dakota
CountyClay
Location2.2 E Jct Sd 19 N
CarriesSd046
CrossesWest Fork Frog Ck
Coordinates43.08346, -97.03975

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length38.7 ft (11.8 m)
Max Span12.1 ft (3.7 m)
Deck Width40.0 ft (12.2 m)
Deck Area144.0 sq m
Main Spans3
Year Built2021

Traffic

Avg Daily Traffic2,559 (2024)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000014061000

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.

Nearby Bridges