Structure 14078060 · Clay County, SD

45980 303 St. over Vermillion Rv

Carries 45980 303 St. over Vermillion Rv, 6s & 7.8e Irene.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT135 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9Substructure 3/9 · sets the rating

135 ft end to end. 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 through truss.

Built1909rebuilt 1970
Length135.2 ft41.2 m
Daily traffic15counted 2022
Last inspectedOctober 2021every 12 months

Location

StateSouth Dakota
CountyClay
Location6s & 7.8e Irene
Carries45980 303 St.
CrossesVermillion Rv
Coordinates42.99659, -97.00431

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length135.2 ft (41.2 m)
Max Span75.1 ft (22.9 m)
Deck Width16.1 ft (4.9 m)
Deck Area201.9 sq m
Main Spans1
Year Built1909 (reconstructed 1970)

Traffic

Avg Daily Traffic15 (2022)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2021
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalUnknown
Structure Number000000014078060

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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