Structure 58554 · Pine County, MN

Csah 7 over Snake River

Carries Csah 7 over Snake River, 0.1 Mi E Of Jct Csah 53.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT276 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

276 ft end to end, longest span 91 ft: about 4 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.

Built201511 years old
Length275.9 ft84.1 m
Daily traffic760counted 2020
Last inspectedOctober 2023every 24 months

Location

StateMinnesota
CountyPine
Location0.1 Mi E Of Jct Csah 53
CarriesCsah 7
CrossesSnake River
Coordinates45.81991, -93.04108

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length275.9 ft (84.1 m)
Max Span91.2 ft (27.8 m)
Deck Width43.3 ft (13.2 m)
Deck Area1110.1 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic760 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number58554

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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