Structure B61012400000000 · Trempealeau County, WI

Ush 53-sth 121 over Pigeon Creek

Carries Ush 53-sth 121 over Pigeon Creek, 1.5m N Jct Sth 121 To W.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT181 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

181 ft end to end, longest span 69 ft: about 3 semi-trucks nose to tail. 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.

Built199432 years old
Length181.4 ft55.3 m
Daily traffic4,150counted 2022
Last inspectedOctober 2024every 48 months

Location

StateWisconsin
CountyTrempealeau
Location1.5m N Jct Sth 121 To W
CarriesUsh 53-sth 121
CrossesPigeon Creek
Coordinates44.37484, -91.29414

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length181.4 ft (55.3 m)
Max Span68.9 ft (21 m)
Deck Width45.9 ft (14 m)
Deck Area774.2 sq m
Main Spans3
Year Built1994

Traffic

Avg Daily Traffic4,150 (2022)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB61012400000000

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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