Structure 50206208 · Minnehaha County, SD

10th Street over Railroad Switchyard

Carries 10th Street over Railroad Switchyard, East Of Reid Street.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT844 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

844 ft end to end, longest span 86 ft: about 2.3 football fields. 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 multi-beam bridge.

Built1930rebuilt 1979
Length844.5 ft257.4 m
Daily traffic10,700counted 2022
Last inspectedAugust 2024every 24 months

Location

StateSouth Dakota
CountyMinnehaha
LocationEast Of Reid Street
Carries10th Street
CrossesRailroad Switchyard
Coordinates43.54666, -96.71864

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length844.5 ft (257.4 m)
Max Span85.6 ft (26.1 m)
Deck Width49.9 ft (15.2 m)
Deck Area3912.5 sq m
Main Spans19
Year Built1930 (reconstructed 1979)

Traffic

Avg Daily Traffic10,700 (2022)
Truck Traffic4%
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000050206208

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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