Structure 999905600462901 · Johnson County, KS

Us56/175th ST WB over I-35 HWY Wl-el

Carries Us56/175th ST WB over I-35 HWY Wl-el, 9.02 Mi NE Mi Coln.

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 FT440 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

440 ft end to end, longest span 137 ft: about 6 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.

Built199234 years old
Length440.0 ft134.1 m
Daily traffic14,000counted 2023
Last inspectedJune 2024every 24 months

Location

StateKansas
CountyJohnson
Location9.02 Mi NE Mi Coln
CarriesUs56/175th ST WB
CrossesI-35 HWY Wl-el
Coordinates38.81139, -94.88333

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length440.0 ft (134.1 m)
Max Span137.1 ft (41.8 m)
Deck Width35.4 ft (10.8 m)
Deck Area1448.3 sq m
Main Spans4
Year Built1992

Traffic

Avg Daily Traffic14,000 (2023)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number999905600462901

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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