Structure 12037 · St. Louis County, MO

Is 70 E over Rp Bermuda RD To Rtns

Carries Is 70 E over Rp Bermuda RD To Rtns, S 14 T 46 N R 6 E.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT401 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

401 ft end to end, longest span 205 ft: 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 multi-beam bridge.

Built200125 years old
Length400.9 ft122.2 m
Daily traffic74,435counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateMissouri
CountySt. Louis
LocationS 14 T 46 N R 6 E
CarriesIs 70 E
CrossesRp Bermuda RD To Rtns
Coordinates38.72067, -90.30572

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length400.9 ft (122.2 m)
Max Span205.4 ft (62.6 m)
Deck Width69.2 ft (21.1 m)
Deck Area2578.4 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic74,435 (2024)
Truck Traffic18%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number12037

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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