Structure 7423 · Itasca County, MN

Ut 2233 over Swan River

Carries Ut 2233 over Swan River, 0.4 Mi S Of Jct Csah 10.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 1 of 9.

How ratings work
Deck4/9 · Poor
Superstructure3/9 · Serious
Substructuresets the rating1/9 · Imminent Failure
Channelnot part of overall0/9 · Failed
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT80 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9Substructure 1/9 · sets the rating

80 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a deck arch.

Built1917109 years old
Length80.1 ft24.4 m
Daily traffic25counted 2009
Last inspectedJanuary 2010every 12 months

Location

StateMinnesota
CountyItasca
Location0.4 Mi S Of Jct Csah 10
CarriesUt 2233
CrossesSwan River
Coordinates47.20409, -93.29981

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length80.1 ft (24.4 m)
Max Span49.9 ft (15.2 m)
Deck Width19.0 ft (5.8 m)
Deck Area141.5 sq m
Main Spans1
Year Built1917

Traffic

Avg Daily Traffic25 (2009)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2010
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number7423

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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