Structure 25421 · Jackson County, MO

Main ST Vd over Kct Railway

Carries Main ST Vd over Kct Railway, S 8 T 49 N R 33 W.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,100 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

1,100 ft end to end, longest span 83 ft: about 3.1 football fields. 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.

Built198046 years old
Length1100.1 ft335.3 m
Daily traffic7,616counted 2024
Last inspectedApril 2024every 24 months

Location

StateMissouri
CountyJackson
LocationS 8 T 49 N R 33 W
CarriesMain ST Vd
CrossesKct Railway
Coordinates39.08696, -94.58387

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length1100.1 ft (335.3 m)
Max Span83.0 ft (25.3 m)
Deck Width104.0 ft (31.7 m)
Deck Area10629.0 sq m
Main Spans15
Year Built1980

Traffic

Avg Daily Traffic7,616 (2024)
Truck Traffic5%
Lanes On Bridge6

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number25421

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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