Structure B52008500000000 · Richland County, WI

Sth 171 over E Br Mill Creek

Carries Sth 171 over E Br Mill Creek, 0.9m E Jct Cth E.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT52 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

52 ft end to end. 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 multi-beam bridge.

Built199036 years old
Length51.8 ft15.8 m
Daily traffic460counted 2022
Last inspectedMarch 2024every 24 months

Location

StateWisconsin
CountyRichland
Location0.9m E Jct Cth E
CarriesSth 171
CrossesE Br Mill Creek
Coordinates43.33970, -90.52573

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length51.8 ft (15.8 m)
Max Span49.9 ft (15.2 m)
Deck Width37.7 ft (11.5 m)
Deck Area181.7 sq m
Main Spans1
Year Built1990

Traffic

Avg Daily Traffic460 (2022)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB52008500000000

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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