Structure 999943500464321 · Johnson County, KS

I435 HWY EB over Lackman Road

Carries I435 HWY EB over Lackman Road, 0.78 Mi W Jct I435/i35.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT245 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

245 ft end to end: 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 multi-beam bridge.

Built201610 years old
Length245.1 ft74.7 m
Daily traffic59,000counted 2023
Last inspectedJuly 2024every 24 months

Location

StateKansas
CountyJohnson
Location0.78 Mi W Jct I435/i35
CarriesI435 HWY EB
CrossesLackman Road
Coordinates38.94222, -94.76056

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length245.1 ft (74.7 m)
Max Span242.1 ft (73.8 m)
Deck Width86.3 ft (26.3 m)
Deck Area1964.6 sq m
Main Spans1
Year Built2016

Traffic

Avg Daily Traffic59,000 (2023)
Truck Traffic6%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number999943500464321

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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