Structure B36006900000000 · Manitowoc County, WI

Lrd Middle RD over IH 43-sth 42

Carries Lrd Middle RD over IH 43-sth 42, 3.8m E Jct Cth Jj.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT249 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

249 ft end to end, longest span 122 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.

Built197848 years old
Length249.3 ft76 m
Daily traffic100counted 2023
Last inspectedAugust 2023every 24 months

Location

StateWisconsin
CountyManitowoc
Location3.8m E Jct Cth Jj
CarriesLrd Middle RD
CrossesIH 43-sth 42
Coordinates44.09333, -87.73167

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length249.3 ft (76 m)
Max Span122.0 ft (37.2 m)
Deck Width33.1 ft (10.1 m)
Deck Area767.6 sq m
Main Spans2
Year Built1978

Traffic

Avg Daily Traffic100 (2023)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB36006900000000

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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