Structure S275 07714 · Madison County, NE

Us275 over N Fk Elkhorn River

Carries Us275 over N Fk Elkhorn River, 1e Norfolk.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT346 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

346 ft end to end, longest span 85 ft: about 5 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.

Built1955rebuilt 1980
Length346.1 ft105.5 m
Daily traffic11,135counted 2018
Last inspectedMay 2023every 24 months

Location

StateNebraska
CountyMadison
Location1e Norfolk
CarriesUs275
CrossesN Fk Elkhorn River
Coordinates42.01830, -97.38760

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length346.1 ft (105.5 m)
Max Span85.0 ft (25.9 m)
Deck Width68.2 ft (20.8 m)
Deck Area2194.4 sq m
Main Spans5
Year Built1955 (reconstructed 1980)

Traffic

Avg Daily Traffic11,135 (2018)
Truck Traffic10%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberS275 07714

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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