Structure 7375 · Aitkin County, MN

CR 54 over Sissabagamah Creek

Carries CR 54 over Sissabagamah Creek, 3.0 Mi E Of Aitkin.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

24 ft end to end. 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 slab bridge.

Built195076 years old
Length24.0 ft7.3 m
Daily traffic79counted 2021
Last inspectedOctober 2024every 12 months

Location

StateMinnesota
CountyAitkin
Location3.0 Mi E Of Aitkin
CarriesCR 54
CrossesSissabagamah Creek
Coordinates46.54929, -93.66528

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length24.0 ft (7.3 m)
Max Span22.0 ft (6.7 m)
Deck Width21.0 ft (6.4 m)
Deck Area46.7 sq m
Main Spans1
Year Built1950

Traffic

Avg Daily Traffic79 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number7375

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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