Structure 999943500462251 · Johnson County, KS

I435 HWY NB over 87th ST

Carries I435 HWY NB over 87th ST, Jct 87th St/i435 NB.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT226 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

226 ft end to end, longest span 66 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 multi-beam bridge.

Built198244 years old
Length226.4 ft69 m
Daily traffic41,050counted 2023
Last inspectedJuly 2024every 24 months

Location

StateKansas
CountyJohnson
LocationJct 87th St/i435 NB
CarriesI435 HWY NB
Crosses87th ST
Coordinates38.97083, -94.77611

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length226.4 ft (69 m)
Max Span65.9 ft (20.1 m)
Deck Width58.4 ft (17.8 m)
Deck Area1228.2 sq m
Main Spans4
Year Built1982

Traffic

Avg Daily Traffic41,050 (2023)
Truck Traffic8%
Lanes On Bridge3
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 Number999943500462251

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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