Structure 19465 · Jackson County, MO

Colbern RD over Lk Jacomo

Carries Colbern RD over Lk Jacomo, S 27 T 48 N R 31 W.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 42 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built1929rebuilt 1984
Length42.0 ft12.8 m
Daily traffic9,498counted 2024
Last inspectedFebruary 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 27 T 48 N R 31 W
CarriesColbern RD
CrossesLk Jacomo
Coordinates38.94566, -94.33310

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length42.0 ft (12.8 m)
Max Span12.1 ft (3.7 m)
Deck Area194.6 sq m
Main Spans3
Year Built1929 (reconstructed 1984)

Traffic

Avg Daily Traffic9,498 (2024)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number19465

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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