Structure 32229 · St. Louis County, MO

Rp Is170e To Is64w over Is 170 Rp Is170e To Bre

Carries Rp Is170e To Is64w over Is 170 Rp Is170e To Bre, S 16 T 45 N R 6 E.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT293 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

293 ft end to end, longest span 147 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.

Built200818 years old
Length293.0 ft89.3 m
Daily traffic19,242counted 2024
Last inspectedOctober 2024every 24 months

Location

StateMissouri
CountySt. Louis
LocationS 16 T 45 N R 6 E
CarriesRp Is170e To Is64w
CrossesIs 170 Rp Is170e To Bre
Coordinates38.63171, -90.34465

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length293.0 ft (89.3 m)
Max Span147.3 ft (44.9 m)
Deck Width29.5 ft (9 m)
Deck Area803.7 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic19,242 (2024)
Truck Traffic4%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number32229

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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