Structure 32478 · Gentry County, MO

New Castle Trail over Sampson CR

Carries New Castle Trail over Sampson CR, S 11 T 62 N R 30 W.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT91 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 5/9 · sets the rating

91 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.

Built200917 years old
Length91.2 ft27.8 m
Daily traffic15counted 2024
Last inspectedJanuary 2023every 24 months

Location

StateMissouri
CountyGentry
LocationS 11 T 62 N R 30 W
CarriesNew Castle Trail
CrossesSampson CR
Coordinates40.19333, -94.23833

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length91.2 ft (27.8 m)
Max Span89.9 ft (27.4 m)
Deck Width24.6 ft (7.5 m)
Deck Area208.5 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic15 (2024)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number32478

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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