Structure B11005800000000 · Columbia County, WI

IH 39 NB over Cmstpp Rr

Carries IH 39 NB over Cmstpp Rr, 2.3m N Jct Sth 33 To E.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

156 ft end to end, longest span 58 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.

Built1964rebuilt 1990
Length155.8 ft47.5 m
Daily traffic10,050counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateWisconsin
CountyColumbia
Location2.3m N Jct Sth 33 To E
CarriesIH 39 NB
CrossesCmstpp Rr
Coordinates43.55489, -89.49510

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length155.8 ft (47.5 m)
Max Span58.4 ft (17.8 m)
Deck Width35.1 ft (10.7 m)
Deck Area508.2 sq m
Main Spans3
Year Built1964 (reconstructed 1990)

Traffic

Avg Daily Traffic10,050 (2021)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB11005800000000

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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