Structure B35000200000000 · Lincoln County, WI

Sth 64-w Main ST over Prairie River

Carries Sth 64-w Main ST over Prairie River, 0.1m E Jct Sth 107 To N.

Overall conditionFair

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

How ratings work
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT139 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9Substructure 5/9

139 ft end to end, longest span 44 ft. 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 deck arch.

Built1904rebuilt 2001
Length139.1 ft42.4 m
Daily traffic7,300counted 2022
Last inspectedMay 2023every 24 months

Location

StateWisconsin
CountyLincoln
Location0.1m E Jct Sth 107 To N
CarriesSth 64-w Main ST
CrossesPrairie River
Coordinates45.17890, -89.70395

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length139.1 ft (42.4 m)
Max Span43.6 ft (13.3 m)
Deck Width54.8 ft (16.7 m)
Deck Area708.1 sq m
Main Spans3
Year Built1904 (reconstructed 2001)

Traffic

Avg Daily Traffic7,300 (2022)
Truck Traffic3%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB35000200000000

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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