Structure 660470 · Nemaha County, KS

Rs 1267 C-9 over Silver Creek

Carries Rs 1267 C-9 over Silver Creek, 1.5 N.e. Of Bern.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT112 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 3/9 · sets the rating

112 ft end to end, longest span 44 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 slab bridge.

Built198343 years old
Length111.9 ft34.1 m
Daily traffic342counted 2008
Last inspectedMarch 2024every 12 months

Location

StateKansas
CountyNemaha
Location1.5 N.e. Of Bern
CarriesRs 1267 C-9
CrossesSilver Creek
Coordinates39.97768, -95.95624

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length111.9 ft (34.1 m)
Max Span44.0 ft (13.4 m)
Deck Width29.9 ft (9.1 m)
Deck Area310.3 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic342 (2008)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000660470

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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