Structure B35002900000000 · Lincoln County, WI

Ush 51 SB over Sth 64

Carries Ush 51 SB over Sth 64, 3.9m S Jct Cth C.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT194 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

194 ft end to end, longest span 98 ft: about 3 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.

Built197551 years old
Length193.6 ft59 m
Daily traffic7,350counted 2022
Last inspectedJune 2023every 24 months

Location

StateWisconsin
CountyLincoln
Location3.9m S Jct Cth C
CarriesUsh 51 SB
CrossesSth 64
Coordinates45.17811, -89.64691

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length193.6 ft (59 m)
Max Span98.4 ft (30 m)
Deck Width44.0 ft (13.4 m)
Deck Area790.6 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic7,350 (2022)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge4

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 NumberB35002900000000

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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