Structure 32474 · St. Louis County, MO

Hanley RD S over Cst Eager RD

Carries Hanley RD S over Cst Eager RD, S 22 T 45 N R 20 W.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT57 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

57 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.

Built200818 years old
Length57.4 ft17.5 m
Daily traffic28,480counted 2024
Last inspectedOctober 2024every 24 months

Location

StateMissouri
CountySt. Louis
LocationS 22 T 45 N R 20 W
CarriesHanley RD S
CrossesCst Eager RD
Coordinates38.62924, -90.33486

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length57.4 ft (17.5 m)
Max Span57.4 ft (17.5 m)
Deck Width183.7 ft (56 m)
Deck Area980 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic28,480 (2024)
Truck Traffic5%
Lanes On Bridge8
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number32474

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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