Structure 12087 · Jackson County, MO

Tracy AVE S over US 71 Rp Us71n To 22nd

Carries Tracy AVE S over US 71 Rp Us71n To 22nd, S 9 T 49 N R 33 W.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT309 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

309 ft end to end, longest span 121 ft: about 4 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 multi-beam bridge.

Built199828 years old
Length309.1 ft94.2 m
Daily traffic1,671counted 2024
Last inspectedAugust 2023every 24 months

Location

StateMissouri
CountyJackson
LocationS 9 T 49 N R 33 W
CarriesTracy AVE S
CrossesUS 71 Rp Us71n To 22nd
Coordinates39.08448, -94.56839

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length309.1 ft (94.2 m)
Max Span121.1 ft (36.9 m)
Deck Width29.5 ft (9 m)
Deck Area847.8 sq m
Main Spans2
Year Built1998

Traffic

Avg Daily Traffic1,671 (2024)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number12087

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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