Structure 11811 · Henry County, MO

Mo 13 N over Truman Reservoir

Carries Mo 13 N over Truman Reservoir, S 25 T 41 N R 26 W.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,035 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,035 ft end to end, longest span 133 ft: about 2.9 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.

Built199927 years old
Length1035.1 ft315.5 m
Daily traffic7,626counted 2024
Last inspectedJanuary 2023every 24 months

Location

StateMissouri
CountyHenry
LocationS 25 T 41 N R 26 W
CarriesMo 13 N
CrossesTruman Reservoir
Coordinates38.32037, -93.75794

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1035.1 ft (315.5 m)
Max Span132.9 ft (40.5 m)
Deck Width42.7 ft (13 m)
Deck Area4101.5 sq m
Main Spans9
Year Built1999

Traffic

Avg Daily Traffic7,626 (2024)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number11811

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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