Structure B13066400000000 · Dane County, WI

Lrd Seminole Highw over Ush 12/14/18/151

Carries Lrd Seminole Highw over Ush 12/14/18/151, 0.5 Mi. E Ush 18/151.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT172 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

172 ft end to end, longest span 87 ft: about 2 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.

Built201313 years old
Length171.9 ft52.4 m
Daily traffic13,700counted 2022
Last inspectedJune 2023every 24 months

Location

StateWisconsin
CountyDane
Location0.5 Mi. E Ush 18/151
CarriesLrd Seminole Highw
CrossesUsh 12/14/18/151
Coordinates43.03464, -89.44356

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length171.9 ft (52.4 m)
Max Span86.9 ft (26.5 m)
Deck Width64.0 ft (19.5 m)
Deck Area1021.8 sq m
Main Spans2
Year Built2013

Traffic

Avg Daily Traffic13,700 (2022)
Lanes On Bridge3
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB13066400000000

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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