Structure 6225 · Platte County, MO

Is 29 S over Platte Rvr

Carries Is 29 S over Platte Rvr, S 25 T 53 N R 35 W.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT704 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

704 ft end to end, longest span 115 ft: about 2.0 football fields. 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.

Built1950rebuilt 1985
Length704.1 ft214.6 m
Daily traffic18,026counted 2024
Last inspectedJuly 2024every 12 months

Location

StateMissouri
CountyPlatte
LocationS 25 T 53 N R 35 W
CarriesIs 29 S
CrossesPlatte Rvr
Coordinates39.37769, -94.78073

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length704.1 ft (214.6 m)
Max Span115.2 ft (35.1 m)
Deck Width41.7 ft (12.7 m)
Deck Area2725.4 sq m
Main Spans3
Year Built1950 (reconstructed 1985)

Traffic

Avg Daily Traffic18,026 (2024)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number6225

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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