Structure B16000500000000 · Douglas County, WI

I 535 over ST Louis R; Rr Street

Carries I 535 over ST Louis R; Rr Street, 1.3 SE Of Jct TH 35.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
7,980 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

7,980 ft end to end, longest span 600 ft: about 22 football fields, or 1.5 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 through truss.

Built1961rebuilt 1993
Length7980.0 ft2432.3 m
Daily traffic28,098counted 2021
Last inspectedJuly 2024every 12 months

Location

StateWisconsin
CountyDouglas
Location1.3 SE Of Jct TH 35
CarriesI 535
CrossesST Louis R; Rr Street
Coordinates46.74971, -92.10120

Physical Characteristics

MaterialSteel Continuous
DesignTruss - Thru
Total Length7980.0 ft (2432.3 m)
Max Span600.1 ft (182.9 m)
Deck Width63.6 ft (19.4 m)
Deck Area47186.6 sq m
Main Spans3
Year Built1961 (reconstructed 1993)

Traffic

Avg Daily Traffic28,098 (2021)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge12

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB16000500000000

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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