Structure 42160215 · Lincoln County, SD

480th Avenue over Pattee Creek

Carries 480th Avenue over Pattee Creek, 6w & 2.5s Of Fairview.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built193591 years old
Length24.9 ft7.6 m
Daily traffic55counted 2022
Last inspectedMay 2024every 12 months

Location

StateSouth Dakota
CountyLincoln
Location6w & 2.5s Of Fairview
Carries480th Avenue
CrossesPattee Creek
Coordinates43.19278, -96.60886

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span23.0 ft (7 m)
Deck Width24.0 ft (7.3 m)
Deck Area55.5 sq m
Main Spans1
Year Built1935

Traffic

Avg Daily Traffic55 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000042160215

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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