Structure 788 · Harrison County, MO

Is 35 S over Sp 69 Abandoned Rr

Carries Is 35 S over Sp 69 Abandoned Rr, S 11 T 63 N R 28 W.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT250 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 6/9 · sets the rating

250 ft end to end, longest span 70 ft: 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 multi-beam bridge.

Built1961rebuilt 1994
Length249.7 ft76.1 m
Daily traffic7,373counted 2024
Last inspectedOctober 2023every 24 months

Location

StateMissouri
CountyHarrison
LocationS 11 T 63 N R 28 W
CarriesIs 35 S
CrossesSp 69 Abandoned Rr
Coordinates40.27956, -94.01261

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length249.7 ft (76.1 m)
Max Span69.9 ft (21.3 m)
Deck Width40.0 ft (12.2 m)
Deck Area928.4 sq m
Main Spans4
Year Built1961 (reconstructed 1994)

Traffic

Avg Daily Traffic7,373 (2024)
Truck Traffic48%
Lanes On Bridge2
Lanes Under Bridge2

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 Number788

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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