Structure 24603 · Monroe County, MO

County RD 390 over Indian CR

Carries County RD 390 over Indian CR, S 19 T 56 N R 8 W.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

29 ft end to end. Lengths and the car 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.

Built1916110 years old
Length28.9 ft8.8 m
Daily traffic50counted 2023
Last inspectedJune 2024every 24 months

Location

StateMissouri
CountyMonroe
LocationS 19 T 56 N R 8 W
CarriesCounty RD 390
CrossesIndian CR
Coordinates39.64381, -91.82806

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length28.9 ft (8.8 m)
Max Span27.9 ft (8.5 m)
Deck Width17.1 ft (5.2 m)
Deck Area45.8 sq m
Main Spans1
Year Built1916

Traffic

Avg Daily Traffic50 (2023)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number24603

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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