Structure 6093 · Jackson County, MO

Is 70 E over Sni-a-bar CR

Carries Is 70 E over Sni-a-bar CR, S 36 T 49 N R 30 W.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT531 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

531 ft end to end, longest span 78 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 multi-beam bridge.

Built1948rebuilt 1979
Length530.8 ft161.8 m
Daily traffic24,233counted 2024
Last inspectedDecember 2024every 12 months

Location

StateMissouri
CountyJackson
LocationS 36 T 49 N R 30 W
CarriesIs 70 E
CrossesSni-a-bar CR
Coordinates39.02029, -94.18274

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length530.8 ft (161.8 m)
Max Span78.1 ft (23.8 m)
Deck Width42.7 ft (13 m)
Deck Area2103.4 sq m
Main Spans9
Year Built1948 (reconstructed 1979)

Traffic

Avg Daily Traffic24,233 (2024)
Truck Traffic43%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number6093

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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