Structure 999903100700061 · Osage County, KS

Rs1471 K31 HWY over I35 HWY Nl-sl

Carries Rs1471 K31 HWY over I35 HWY Nl-sl, Wjct K31/i35.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT287 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

287 ft end to end, longest span 89 ft: about 4 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 box-beam bridge.

Built197353 years old
Length286.7 ft87.4 m
Daily traffic590counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateKansas
CountyOsage
LocationWjct K31/i35
CarriesRs1471 K31 HWY
CrossesI35 HWY Nl-sl
Coordinates38.44833, -95.63694

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length286.7 ft (87.4 m)
Max Span88.9 ft (27.1 m)
Deck Width37.1 ft (11.3 m)
Deck Area987.6 sq m
Main Spans4
Year Built1973

Traffic

Avg Daily Traffic590 (2023)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number999903100700061

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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