Structure 69846 · St. Louis County, MN

Csah 14 over I 35

Carries Csah 14 over I 35, 2.1 Mi SW Of W Jct TH 2.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT193 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 7/9

193 ft end to end, longest span 58 ft: about 3 semi-trucks nose to tail. 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.

Built196660 years old
Length192.6 ft58.7 m
Daily traffic4,150counted 2019
Last inspectedJuly 2024every 12 months

Location

StateMinnesota
CountySt. Louis
Location2.1 Mi SW Of W Jct TH 2
CarriesCsah 14
CrossesI 35
Coordinates46.72618, -92.21708

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length192.6 ft (58.7 m)
Max Span58.1 ft (17.7 m)
Deck Width35.8 ft (10.9 m)
Deck Area639.8 sq m
Main Spans4
Year Built1966

Traffic

Avg Daily Traffic4,150 (2019)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number69846

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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