Structure 9113 · Chippewa County, MN

Msas 105 over TH 29

Carries Msas 105 over TH 29, 1.2 Mi N Of Jct Th212.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
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 FT140 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

140 ft end to end, longest span 57 ft. 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.

Built195967 years old
Length139.8 ft42.6 m
Daily traffic1,900counted 2016
Last inspectedSeptember 2024every 24 months

Location

StateMinnesota
CountyChippewa
Location1.2 Mi N Of Jct Th212
CarriesMsas 105
CrossesTH 29
Coordinates44.95137, -95.72283

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length139.8 ft (42.6 m)
Max Span57.1 ft (17.4 m)
Deck Width52.5 ft (16 m)
Deck Area681.6 sq m
Main Spans3
Year Built1959

Traffic

Avg Daily Traffic1,900 (2016)
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number9113

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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