Structure 12126 · Jackson County, MO

Is 435 N over Is 49 Rp Us71s To Is470

Carries Is 435 N over Is 49 Rp Us71s To Is470, S 35 T 48 N R 33 W.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck7/9 · Good
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT781 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9Substructure 4/9 · sets the rating

781 ft end to end, longest span 179 ft: about 2.2 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.

Built200125 years old
Length780.8 ft238 m
Daily traffic31,935counted 2024
Last inspectedOctober 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 35 T 48 N R 33 W
CarriesIs 435 N
CrossesIs 49 Rp Us71s To Is470
Coordinates38.94050, -94.53711

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length780.8 ft (238 m)
Max Span179.1 ft (54.6 m)
Deck Width62.7 ft (19.1 m)
Deck Area4545.8 sq m
Main Spans6
Year Built2001

Traffic

Avg Daily Traffic31,935 (2024)
Truck Traffic12%
Lanes On Bridge3
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number12126

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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