US Bridges

Is 64 E over Cst Market ST

Fair

St. Louis city, Missouri · S 22 T 45 N R 7 E · Structure no. 604

Built
1963
62 years old, rebuilt 1982
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
211 ft
3 main spans
Daily traffic
39,729
2024 count
Owner
State
State Highway Agency

About this bridge

Is 64 E over Cst Market ST is a concrete continuous box beam or girders - single or spread carrying Is 64 E over Cst Market ST in St. Louis city, Missouri. It was built in 1963 and reconstructed in 1982, so it is 62 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 39,729 vehicles a day, roughly 12% of them trucks, projected to reach 49,661 by 2044. The structure is 211 ft (64.3 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIs 64 E
CrossesCst Market ST
LocationS 22 T 45 N R 7 E
RouteInterstate 64
CountySt. Louis city
StateMissouri
Coordinates38.63086, -90.23171
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.4 US tons
Inventory rating45.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length211 ft (64.3 m)
Longest span80 ft (24.4 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,729 (2024)
Projected traffic49,661 by 2044
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 64 E over Cst Market ST built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1982.

What condition is Is 64 E over Cst Market ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Is 64 E over Cst Market ST carry?

About 39,729 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Is 64 E over Cst Market ST?

The structure is 211 ft (64.3 m) long with a longest span of 80 ft (24.4 m) and a deck 56 ft wide.

Who owns Is 64 E over Cst Market ST?

It is owned by the State Highway Agency.