Structure 11200084 · Campbell County, SD

Us083 over Spring Ck

Carries Us083 over Spring Ck, 1.0 S Of Herreid.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT122 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

122 ft end to end, longest span 45 ft. Lengths and the semi-truck 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.

Built200620 years old
Length122.4 ft37.3 m
Daily traffic1,095counted 2024
Last inspectedNovember 2020every 48 months

Location

StateSouth Dakota
CountyCampbell
Location1.0 S Of Herreid
CarriesUs083
CrossesSpring Ck
Coordinates45.81956, -100.06912

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length122.4 ft (37.3 m)
Max Span44.9 ft (13.7 m)
Deck Width38.7 ft (11.8 m)
Deck Area440.1 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic1,095 (2024)
Truck Traffic36%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2020
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000011200084

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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