Structure 909 · Jackson County, MO

Is 35 N over Is 670 Rp Is35n To Is67

Carries Is 35 N over Is 670 Rp Is35n To Is67, S 5 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
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT464 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

464 ft end to end, longest span 111 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 box-beam bridge.

Built1967rebuilt 1992
Length463.9 ft141.4 m
Daily traffic63,042counted 2024
Last inspectedSeptember 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 5 T 49 N R 33 W
CarriesIs 35 N
CrossesIs 670 Rp Is35n To Is67
Coordinates39.09644, -94.59111

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length463.9 ft (141.4 m)
Max Span110.6 ft (33.7 m)
Deck Width34.1 ft (10.4 m)
Deck Area1470.6 sq m
Main Spans5
Year Built1967 (reconstructed 1992)

Traffic

Avg Daily Traffic63,042 (2024)
Truck Traffic18%
Lanes On Bridge2
Lanes Under Bridge9

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 Number909

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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