Structure 36774 · Cooper County, MO

Is 70 E over Missouri Rvr Katy Trail

Carries Is 70 E over Missouri Rvr Katy Trail, S 1 T 48 N R 14 W.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,126 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

3,126 ft end to end, longest span 490 ft: about 8.7 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.

Built20242 years old
Length3126.3 ft952.9 m
Daily traffic18,223counted 2024
Last inspectedMarch 2025every 24 months

Location

StateMissouri
CountyCooper
LocationS 1 T 48 N R 14 W
CarriesIs 70 E
CrossesMissouri Rvr Katy Trail
Coordinates38.95851, -92.54695

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length3126.3 ft (952.9 m)
Max Span490.2 ft (149.4 m)
Deck Width58.7 ft (17.9 m)
Deck Area17056.9 sq m
Main Spans5
Year Built2024

Traffic

Avg Daily Traffic18,223 (2024)
Truck Traffic24%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMarch 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number36774

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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