Structure 6740 · St. Louis County, MN

Mn 73 over Joula Creek

Carries Mn 73 over Joula Creek, 9.4 Mi N Of N Jct TH 2.

Overall conditionPoor

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

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 40 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built195076 years old
Length40.0 ft12.2 m
Daily traffic570counted 2017
Last inspectedSeptember 2024every 12 months

Location

StateMinnesota
CountySt. Louis
Location9.4 Mi N Of N Jct TH 2
CarriesMn 73
CrossesJoula Creek
Coordinates47.04983, -92.94709

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length40.0 ft (12.2 m)
Max Span14.1 ft (4.3 m)
Deck Area126.9 sq m
Main Spans3
Year Built1950

Traffic

Avg Daily Traffic570 (2017)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number6740

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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