Structure 13002 · Gentry County, MO

285 TH ST over W Fk Of Grand Rvr

Carries 285 TH ST over W Fk Of Grand Rvr, S 32 T 64 N R 32 W.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT417 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

417 ft end to end: about 6 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 through truss.

Built1910rebuilt 2008
Length417.3 ft127.2 m
Daily traffic50counted 2024
Last inspectedFebruary 2023every 24 months

Location

StateMissouri
CountyGentry
LocationS 32 T 64 N R 32 W
Carries285 TH ST
CrossesW Fk Of Grand Rvr
Coordinates40.30703, -94.53342

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length417.3 ft (127.2 m)
Max Span140.1 ft (42.7 m)
Deck Width15.1 ft (4.6 m)
Deck Area585.1 sq m
Main Spans1
Year Built1910 (reconstructed 2008)

Traffic

Avg Daily Traffic50 (2024)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number13002

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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