Structure 696 · Scott County, MO

Is 55 N over Is 57

Carries Is 55 N over Is 57, S 27 T 26 N R 14 E.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT274 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

274 ft end to end, longest span 80 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 multi-beam bridge.

Built1962rebuilt 2018
Length274.0 ft83.5 m
Daily traffic10,439counted 2024
Last inspectedJanuary 2025every 24 months

Location

StateMissouri
CountyScott
LocationS 27 T 26 N R 14 E
CarriesIs 55 N
CrossesIs 57
Coordinates36.87365, -89.53293

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length274.0 ft (83.5 m)
Max Span80.1 ft (24.4 m)
Deck Width42.7 ft (13 m)
Deck Area1085.5 sq m
Main Spans4
Year Built1962 (reconstructed 2018)

Traffic

Avg Daily Traffic10,439 (2024)
Truck Traffic59%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number696

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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