Structure S006 28424 · Saline County, NE

Us6/n15 over Johnson Creek

Carries Us6/n15 over Johnson Creek, 3n Dorchester.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT92 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

92 ft end to end. 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.

Built197650 years old
Length91.9 ft28 m
Daily traffic1,760counted 2018
Last inspectedAugust 2024every 24 months

Location

StateNebraska
CountySaline
Location3n Dorchester
CarriesUs6/n15
CrossesJohnson Creek
Coordinates40.69800, -97.12170

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length91.9 ft (28 m)
Max Span89.9 ft (27.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area366.8 sq m
Main Spans1
Year Built1976

Traffic

Avg Daily Traffic1,760 (2018)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberS006 28424

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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