Structure B36006300000000 · Manitowoc County, WI

Ush 151-sth 42 NB over IH 43

Carries Ush 151-sth 42 NB over IH 43, 0.2m N Jct Sth 42 To S.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT301 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

301 ft end to end, longest span 148 ft: about 4 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.

Built197947 years old
Length300.5 ft91.6 m
Daily traffic13,900counted 2022
Last inspectedNovember 2024every 48 months

Location

StateWisconsin
CountyManitowoc
Location0.2m N Jct Sth 42 To S
CarriesUsh 151-sth 42 NB
CrossesIH 43
Coordinates44.07314, -87.71297

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length300.5 ft (91.6 m)
Max Span147.6 ft (45 m)
Deck Width90.9 ft (27.7 m)
Deck Area2537.3 sq m
Main Spans2
Year Built1979

Traffic

Avg Daily Traffic13,900 (2022)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB36006300000000

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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