Structure 6631 · Jackson County, MO

Is 70 W over US 40

Carries Is 70 W over US 40, S 13 T 49 N R 33 W.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT230 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

230 ft end to end, longest span 98 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.

Built1960rebuilt 2014
Length230.0 ft70.1 m
Daily traffic47,299counted 2024
Last inspectedAugust 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 13 T 49 N R 33 W
CarriesIs 70 W
CrossesUS 40
Coordinates39.06886, -94.51101

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length230.0 ft (70.1 m)
Max Span98.1 ft (29.9 m)
Deck Width63.6 ft (19.4 m)
Deck Area1359.9 sq m
Main Spans3
Year Built1960 (reconstructed 2014)

Traffic

Avg Daily Traffic47,299 (2024)
Truck Traffic18%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number6631

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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