Structure 2809 · Clay County, MO

NE Pleasant Valley over Is 435

Carries NE Pleasant Valley over Is 435, S 21 T 51 N R 32 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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT316 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

316 ft end to end, longest span 118 ft: about 4 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.

Built198046 years old
Length315.9 ft96.3 m
Daily traffic3,972counted 2024
Last inspectedFebruary 2023every 24 months

Location

StateMissouri
CountyClay
LocationS 21 T 51 N R 32 W
CarriesNE Pleasant Valley
CrossesIs 435
Coordinates39.21659, -94.49574

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length315.9 ft (96.3 m)
Max Span118.1 ft (36 m)
Deck Width75.1 ft (22.9 m)
Deck Area2205.3 sq m
Main Spans4
Year Built1980

Traffic

Avg Daily Traffic3,972 (2024)
Truck Traffic4%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number2809

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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