Structure B13054000000000 · Dane County, WI

Lrd Hanson RD over IH 39/90/94

Carries Lrd Hanson RD over IH 39/90/94, 0.1 Mi E Of Portage Rd..

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 FT254 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

254 ft end to end, longest span 125 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.

Built200818 years old
Length253.9 ft77.4 m
Daily traffic13,050counted 2022
Last inspectedSeptember 2024every 48 months

Location

StateWisconsin
CountyDane
Location0.1 Mi E Of Portage Rd.
CarriesLrd Hanson RD
CrossesIH 39/90/94
Coordinates43.15375, -89.30667

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length253.9 ft (77.4 m)
Max Span125.0 ft (38.1 m)
Deck Width50.5 ft (15.4 m)
Deck Area1192.0 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic13,050 (2022)
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB13054000000000

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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