Structure P53007700000000 · Rock County, WI

Lrd Old HWY 92 over Allen Creek

Carries Lrd Old HWY 92 over Allen Creek, 0.5m N Jct Sth 59.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT62 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

62 ft end to end, longest span 30 ft. Lengths and the car 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 slab bridge.

Built196264 years old
Length61.7 ft18.8 m
Daily traffic98counted 2024
Last inspectedJuly 2024every 24 months

Location

StateWisconsin
CountyRock
Location0.5m N Jct Sth 59
CarriesLrd Old HWY 92
CrossesAllen Creek
Coordinates42.74483, -89.32261

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length61.7 ft (18.8 m)
Max Span29.5 ft (9 m)
Deck Width28.5 ft (8.7 m)
Deck Area163.6 sq m
Main Spans2
Year Built1962

Traffic

Avg Daily Traffic98 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberP53007700000000

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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