Structure 52835310 · Pennington County, SD

I090 over Rcp&e Rr

Carries I090 over Rcp&e Rr, 3.6 E Wasta Interch.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 55 ft across. 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.

Built1996rebuilt 1998
Length54.8 ft16.7 m
Daily traffic7,370counted 2023
Last inspectedMarch 2024every 24 months

Location

StateSouth Dakota
CountyPennington
Location3.6 E Wasta Interch
CarriesI090
CrossesRcp&e Rr
Coordinates44.06695, -102.37840

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length54.8 ft (16.7 m)
Max Span48.2 ft (14.7 m)
Deck Area387.4 sq m
Main Spans1
Year Built1996 (reconstructed 1998)

Traffic

Avg Daily Traffic7,370 (2023)
Truck Traffic22%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000052835310

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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