Structure 999914600190611 · Crawford County, KS

K-146 HWY over Big Walnut Creek Drg

Carries K-146 HWY over Big Walnut Creek Drg, 5.92 Mi E Neosho Coln.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

142 ft end to end, longest span 56 ft. 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 slab bridge.

Built199432 years old
Length142.4 ft43.4 m
Daily traffic400counted 2023
Last inspectedMarch 2024every 24 months

Location

StateKansas
CountyCrawford
Location5.92 Mi E Neosho Coln
CarriesK-146 HWY
CrossesBig Walnut Creek Drg
Coordinates37.60167, -94.97944

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length142.4 ft (43.4 m)
Max Span56.1 ft (17.1 m)
Deck Width34.1 ft (10.4 m)
Deck Area451.4 sq m
Main Spans3
Year Built1994

Traffic

Avg Daily Traffic400 (2023)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number999914600190611

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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