Structure B02003200000000 · Ashland County, WI

Cth C over Marengo River

Carries Cth C over Marengo River, 2.0m S Jct Sth 112.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

72 ft end to end, longest span 35 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built199036 years old
Length72.2 ft22 m
Daily traffic170counted 2024
Last inspectedAugust 2024every 48 months

Location

StateWisconsin
CountyAshland
Location2.0m S Jct Sth 112
CarriesCth C
CrossesMarengo River
Coordinates46.41936, -90.90384

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length72.2 ft (22 m)
Max Span35.1 ft (10.7 m)
Deck Width29.9 ft (9.1 m)
Deck Area200.2 sq m
Main Spans2
Year Built1990

Traffic

Avg Daily Traffic170 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB02003200000000

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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