Structure C007932410 · Scotts Bluff County, NE

CR M-31 over Ninemile Creek

Carries CR M-31 over Ninemile Creek, 2e 2n Of Minatare.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

72 ft end to end, longest span 38 ft. 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 multi-beam bridge.

Built1965rebuilt 2024
Length71.9 ft21.9 m
Daily traffic45counted 2003
Last inspectedDecember 2024every 24 months

Location

StateNebraska
CountyScotts Bluff
Location2e 2n Of Minatare
CarriesCR M-31
CrossesNinemile Creek
Coordinates41.84400, -103.46150

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length71.9 ft (21.9 m)
Max Span38.1 ft (11.6 m)
Deck Width28.2 ft (8.6 m)
Deck Area188.3 sq m
Main Spans3
Year Built1965 (reconstructed 2024)

Traffic

Avg Daily Traffic45 (2003)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberC007932410

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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