Structure 9581 · Cedar County, MO

Mo 39 S over Cedar CR

Carries Mo 39 S over Cedar CR, S 2 T 35 N R 27 W.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure4/9 · Poor
Substructure4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT221 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 4/9Substructure 4/9

221 ft end to end: 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 through truss.

Built194977 years old
Length221.1 ft67.4 m
Daily traffic502counted 2024
Last inspectedJuly 2023every 24 months

Location

StateMissouri
CountyCedar
LocationS 2 T 35 N R 27 W
CarriesMo 39 S
CrossesCedar CR
Coordinates37.83419, -93.87562

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length221.1 ft (67.4 m)
Max Span110.2 ft (33.6 m)
Deck Width22.3 ft (6.8 m)
Deck Area458.3 sq m
Main Spans1
Year Built1949

Traffic

Avg Daily Traffic502 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number9581

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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