Structure 34937 · Marion County, MO

Mo 168 W over Clear CR

Carries Mo 168 W over Clear CR, S 12 T 57 N R 5 W.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT174 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 9/9

174 ft end to end, longest span 87 ft: about 2 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 tee-beam bridge.

Built201511 years old
Length173.6 ft52.9 m
Daily traffic2,238counted 2024
Last inspectedOctober 2023every 48 months

Location

StateMissouri
CountyMarion
LocationS 12 T 57 N R 5 W
CarriesMo 168 W
CrossesClear CR
Coordinates39.75099, -91.40448

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignTee Beam
Total Length173.6 ft (52.9 m)
Max Span86.9 ft (26.5 m)
Deck Width30.5 ft (9.3 m)
Deck Area492.0 sq m
Main Spans2
Year Built2015

Traffic

Avg Daily Traffic2,238 (2024)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number34937

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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