Is 255 S over Is 55 Is 55 Rp Is270

Fair Condition62 years old41,474 vehicles/day

Location

StateMissouri
CountySt. Louis
LocationS 34 T 43 N R 6 E
CarriesIs 255 S
CrossesIs 55 Is 55 Rp Is270
Coordinates38.50337, -90.33859

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length314.0 ft (95.7 m)
Max Span80.1 ft (24.4 m)
Deck Width59.1 ft (18 m)
Deck Area1722.6 sq m
Main Spans5
Year Built1964 (reconstructed 1991)

Traffic

Avg Daily Traffic41,474 (2024)
Truck Traffic18%
Lanes On Bridge3
Lanes Under Bridge10

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number1014

Nearby Bridges