Structure 6607 · Jackson County, MO

Admiral BLVD E over Is 70 Is 29

Carries Admiral BLVD E over Is 70 Is 29, S 32 T 50 N R 33 W.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT509 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

509 ft end to end, longest span 95 ft: about 7 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 box-beam bridge.

Built1959rebuilt 2013
Length508.9 ft155.1 m
Daily traffic7,371counted 2024
Last inspectedSeptember 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 32 T 50 N R 33 W
CarriesAdmiral BLVD E
CrossesIs 70 Is 29
Coordinates39.10541, -94.57145

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length508.9 ft (155.1 m)
Max Span95.1 ft (29 m)
Deck Width72.2 ft (22 m)
Deck Area3412.2 sq m
Main Spans6
Year Built1959 (reconstructed 2013)

Traffic

Avg Daily Traffic7,371 (2024)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number6607

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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