Structure 36768 · Montgomery County, MO

Mo 19 S over Is 70

Carries Mo 19 S over Is 70, S 27 T 48 N R 5 W.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT276 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

276 ft end to end, longest span 136 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 tee-beam bridge.

Built20233 years old
Length276.2 ft84.2 m
Daily traffic8,732counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateMissouri
CountyMontgomery
LocationS 27 T 48 N R 5 W
CarriesMo 19 S
CrossesIs 70
Coordinates38.89960, -91.45640

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignTee Beam
Total Length276.2 ft (84.2 m)
Max Span136.2 ft (41.5 m)
Deck Width38.7 ft (11.8 m)
Deck Area993.6 sq m
Main Spans2
Year Built2023

Traffic

Avg Daily Traffic8,732 (2024)
Truck Traffic29%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number36768

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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