Structure 34874 · Clay County, MO

Is 35 N over US 69

Carries Is 35 N over US 69, S 23 T 51 N R 32 W.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT79 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

79 ft end to end. Lengths and the car 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 tee-beam bridge.

Built201412 years old
Length79.1 ft24.1 m
Daily traffic33,643counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateMissouri
CountyClay
LocationS 23 T 51 N R 32 W
CarriesIs 35 N
CrossesUS 69
Coordinates39.21920, -94.47250

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length79.1 ft (24.1 m)
Max Span71.9 ft (21.9 m)
Deck Width40.7 ft (12.4 m)
Deck Area298.8 sq m
Main Spans1
Year Built2014

Traffic

Avg Daily Traffic33,643 (2024)
Truck Traffic18%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number34874

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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