Structure 47028444 · Meade County, SD

I090 E over Deadman Gulch

Carries I090 E over Deadman Gulch, 0.3 NW Sturgis Interch.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT117 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

117 ft end to end, longest span 23 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.

Built196363 years old
Length117.1 ft35.7 m
Daily traffic11,255counted 2024
Last inspectedNovember 2024every 24 months

Location

StateSouth Dakota
CountyMeade
Location0.3 NW Sturgis Interch
CarriesI090 E
CrossesDeadman Gulch
Coordinates44.39749, -103.51273

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length117.1 ft (35.7 m)
Max Span23.3 ft (7.1 m)
Deck Width44.3 ft (13.5 m)
Deck Area481.9 sq m
Main Spans5
Year Built1963

Traffic

Avg Daily Traffic11,255 (2024)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000047028444

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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