Structure B20006900000000 · Fond du Lac County, WI

Lrd South Main Str over IH 41

Carries Lrd South Main Str over IH 41, 2.1m N Jct Cth Fff.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT271 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

271 ft end to end, longest span 133 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.

Built200521 years old
Length270.7 ft82.5 m
Daily traffic7,400counted 2023
Last inspectedApril 2023every 24 months

Location

StateWisconsin
CountyFond du Lac
Location2.1m N Jct Cth Fff
CarriesLrd South Main Str
CrossesIH 41
Coordinates43.74321, -88.44986

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length270.7 ft (82.5 m)
Max Span132.9 ft (40.5 m)
Deck Width70.9 ft (21.6 m)
Deck Area1,782 sq m
Main Spans2
Year Built2005

Traffic

Avg Daily Traffic7,400 (2023)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB20006900000000

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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