Structure 960830 · Sumner County, KS

Rs 996 31-54-4 over Chikaskia River

Carries Rs 996 31-54-4 over Chikaskia River, 3.1s 0.8e Of Corbin.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT503 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

503 ft end to end, longest span 110 ft: about 7 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.

Built195868 years old
Length502.6 ft153.2 m
Daily traffic105counted 2013
Last inspectedJuly 2024every 24 months

Location

StateKansas
CountySumner
Location3.1s 0.8e Of Corbin
CarriesRs 996 31-54-4
CrossesChikaskia River
Coordinates37.07942, -97.52873

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length502.6 ft (153.2 m)
Max Span109.6 ft (33.4 m)
Deck Width28.5 ft (8.7 m)
Deck Area1332.8 sq m
Main Spans6
Year Built1958

Traffic

Avg Daily Traffic105 (2013)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000960830

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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