Structure 153 · Buchanan County, MO

Is 29 N over US 36

Carries Is 29 N over US 36, S 14 T 57 N R 35 W.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT238 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

238 ft end to end, longest span 68 ft: about 3 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.

Built1958rebuilt 1988
Length237.9 ft72.5 m
Daily traffic20,343counted 2024
Last inspectedJuly 2024every 24 months

Location

StateMissouri
CountyBuchanan
LocationS 14 T 57 N R 35 W
CarriesIs 29 N
CrossesUS 36
Coordinates39.74945, -94.78947

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length237.9 ft (72.5 m)
Max Span67.9 ft (20.7 m)
Deck Width48.6 ft (14.8 m)
Deck Area1,073 sq m
Main Spans4
Year Built1958 (reconstructed 1988)

Traffic

Avg Daily Traffic20,343 (2024)
Truck Traffic28%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number153

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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