Structure 69879A · St. Louis County, MN

I 35 over Cp Rail; Streets

Carries I 35 over Cp Rail; Streets, 3.5 Mi SW Of Jct TH 535.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,122 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

3,122 ft end to end, longest span 130 ft: about 8.7 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.

Built196957 years old
Length3121.7 ft951.5 m
Daily traffic18,000counted 2015
Last inspectedJuly 2024every 24 months

Location

StateMinnesota
CountySt. Louis
Location3.5 Mi SW Of Jct TH 535
CarriesI 35
CrossesCp Rail; Streets
Coordinates46.73633, -92.17291

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length3121.7 ft (951.5 m)
Max Span130.2 ft (39.7 m)
Deck Width41.0 ft (12.5 m)
Deck Area11893.8 sq m
Main Spans23
Year Built1969

Traffic

Avg Daily Traffic18,000 (2015)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge16

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number69879A

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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