Structure 69904 · St. Louis County, MN

Con 1762 over I 35; Rr; Ramps

Carries Con 1762 over I 35; Rr; Ramps, At Jct I 535.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,033 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

1,033 ft end to end, longest span 183 ft: about 2.9 football fields. 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.

Built20242 years old
Length1033.5 ft315 m
Daily traffic7,800counted 2019
Last inspectedJuly 2024every 24 months

Location

StateMinnesota
CountySt. Louis
LocationAt Jct I 535
CarriesCon 1762
CrossesI 35; Rr; Ramps
Coordinates46.76641, -92.12089

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1033.5 ft (315 m)
Max Span183.4 ft (55.9 m)
Deck Width33.1 ft (10.1 m)
Deck Area3181.5 sq m
Main Spans6
Year Built2024

Traffic

Avg Daily Traffic7,800 (2019)
Lanes On Bridge1
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number69904

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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