Structure B49005900000000 · Portage County, WI

IH Ush 51-ih 39 NB over Little Eau Claire River

Carries IH Ush 51-ih 39 NB over Little Eau Claire River, 0.7m N Jct Cth Db To E.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT151 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

151 ft end to end, longest span 75 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.

Built1972rebuilt 2007
Length150.6 ft45.9 m
Daily traffic11,400counted 2022
Last inspectedAugust 2024every 24 months

Location

StateWisconsin
CountyPortage
Location0.7m N Jct Cth Db To E
CarriesIH Ush 51-ih 39 NB
CrossesLittle Eau Claire River
Coordinates44.68379, -89.64097

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length150.6 ft (45.9 m)
Max Span75.1 ft (22.9 m)
Deck Width43.3 ft (13.2 m)
Deck Area605.9 sq m
Main Spans2
Year Built1972 (reconstructed 2007)

Traffic

Avg Daily Traffic11,400 (2022)
Truck Traffic18%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB49005900000000

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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