Structure P05016200000000 · Brown County, WI

Lrd Contract DR over Unknown Creek

Carries Lrd Contract DR over Unknown Creek, 1.0 Mi NW Jct IH 41.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 29 ft across with 2 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built199036 years old
Length28.9 ft8.8 m
Daily traffic500counted 2024
Last inspectedOctober 2024every 24 months

Location

StateWisconsin
CountyBrown
Location1.0 Mi NW Jct IH 41
CarriesLrd Contract DR
CrossesUnknown Creek
Coordinates44.46398, -88.10433

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length28.9 ft (8.8 m)
Max Span12.1 ft (3.7 m)
Deck Area104.7 sq m
Main Spans2
Year Built1990

Traffic

Avg Daily Traffic500 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberP05016200000000

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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