Structure C007951215 · Scotts Bluff County, NE

County Road 17 over Tri-state Canal

Carries County Road 17 over Tri-state Canal, 2.5se Of Mitchell.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

74 ft end to end, longest span 14 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.

Built1915111 years old
Length74.1 ft22.6 m
Daily traffic40counted 2003
Last inspectedDecember 2023every 24 months

Location

StateNebraska
CountyScotts Bluff
Location2.5se Of Mitchell
CarriesCounty Road 17
CrossesTri-state Canal
Coordinates41.92870, -103.75280

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length74.1 ft (22.6 m)
Max Span14.1 ft (4.3 m)
Deck Width16.1 ft (4.9 m)
Deck Area110.7 sq m
Main Spans5
Year Built1915

Traffic

Avg Daily Traffic40 (2003)
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberC007951215

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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