Structure 97874 · Polk County, MN

T 45 over Sand Hill River

Carries T 45 over Sand Hill River, 0.9 Mi W Of Jct Csah 44.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT48 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 48 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.

Built199531 years old
Length48.2 ft14.7 m
Daily traffic8counted 1973
Last inspectedOctober 2023every 48 months

Location

StateMinnesota
CountyPolk
Location0.9 Mi W Of Jct Csah 44
CarriesT 45
CrossesSand Hill River
Coordinates47.51409, -96.38538

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length48.2 ft (14.7 m)
Max Span12.5 ft (3.8 m)
Deck Area107.3 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic8 (1973)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number97874

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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