Structure 999905900440151 · Jefferson County, KS

Us59 K16 HWY over Big Slough Creek

Carries Us59 K16 HWY over Big Slough Creek, 1.86 Mi N Njct K92.

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
SEMI-TRUCK · 72 FT240 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

240 ft end to end, longest span 98 ft: about 3 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 tee-beam bridge.

Built196561 years old
Length240.5 ft73.3 m
Daily traffic1,278counted 2023
Last inspectedJune 2023every 24 months

Location

StateKansas
CountyJefferson
Location1.86 Mi N Njct K92
CarriesUs59 K16 HWY
CrossesBig Slough Creek
Coordinates39.24250, -95.31056

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length240.5 ft (73.3 m)
Max Span98.1 ft (29.9 m)
Deck Width46.3 ft (14.1 m)
Deck Area1033.5 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic1,278 (2023)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number999905900440151

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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