Structure 999933500561433 · Lyon County, KS

I335 (kta)el-wl over Stillman Creek

Carries I335 (kta)el-wl over Stillman Creek, 5.25 Mi NE I-35.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 55 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built1955rebuilt 2020
Length55.1 ft16.8 m
Daily traffic5,825counted 2023
Last inspectedJune 2024every 24 months

Location

StateKansas
CountyLyon
Location5.25 Mi NE I-35
CarriesI335 (kta)el-wl
CrossesStillman Creek
Coordinates38.47611, -96.18028

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length55.1 ft (16.8 m)
Max Span12.1 ft (3.7 m)
Deck Width220.1 ft (67.1 m)
Deck Area1127.3 sq m
Main Spans4
Year Built1955 (reconstructed 2020)

Traffic

Avg Daily Traffic5,825 (2023)
Truck Traffic27%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number999933500561433

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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