Structure 1771 · Franklin County, MO

Co Wor44 To Eor44 over Is 44

Carries Co Wor44 To Eor44 over Is 44, S 33 T 43 N R 1 E.

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 FT171 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

171 ft end to end, longest span 86 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 multi-beam bridge.

Built1972rebuilt 1985
Length170.9 ft52.1 m
Daily traffic714counted 2024
Last inspectedOctober 2023every 24 months

Location

StateMissouri
CountyFranklin
LocationS 33 T 43 N R 1 E
CarriesCo Wor44 To Eor44
CrossesIs 44
Coordinates38.42668, -90.91498

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length170.9 ft (52.1 m)
Max Span85.6 ft (26.1 m)
Deck Width30.8 ft (9.4 m)
Deck Area489.7 sq m
Main Spans2
Year Built1972 (reconstructed 1985)

Traffic

Avg Daily Traffic714 (2024)
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1771

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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