Structure 521950460000012 · Johnson County, KS

Lamar Ave. over Negro Ck

Carries Lamar Ave. over Negro Ck, 400 S. Of 153rd St..

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 FT43 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 43 ft across with 3 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.

Built199333 years old
Length43.3 ft13.2 m
Daily traffic2,000counted 2024
Last inspectedFebruary 2024every 24 months

Location

StateKansas
CountyJohnson
Location400 S. Of 153rd St.
CarriesLamar Ave.
CrossesNegro Ck
Coordinates38.84991, -94.66088

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length43.3 ft (13.2 m)
Max Span13.8 ft (4.2 m)
Deck Area145.2 sq m
Main Spans3
Year Built1993

Traffic

Avg Daily Traffic2,000 (2024)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number521950460000012

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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