Structure B09000100000000 · Chippewa County, WI

Sth 124-jefferson over Duncan Creek

Carries Sth 124-jefferson over Duncan Creek, 0.4m N Jct Sth 178.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

156 ft end to end, longest span 51 ft: about 2 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.

Built1949rebuilt 1989
Length156.5 ft47.7 m
Daily traffic9,920counted 2023
Last inspectedJuly 2024every 12 months

Location

StateWisconsin
CountyChippewa
Location0.4m N Jct Sth 178
CarriesSth 124-jefferson
CrossesDuncan Creek
Coordinates44.94381, -91.39628

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length156.5 ft (47.7 m)
Max Span50.9 ft (15.5 m)
Deck Width56.1 ft (17.1 m)
Deck Area815.7 sq m
Main Spans3
Year Built1949 (reconstructed 1989)

Traffic

Avg Daily Traffic9,920 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure NumberB09000100000000

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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