US Bridges

Is 64 E over CO North Forty DR to Sor

Poor

St. Louis County, Missouri · S 13 T 45 N R 4 E · Structure no. 3557

Built
1985
40 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
230 ft
3 main spans
Daily traffic
64,631
2024 count
Owner
State
State Highway Agency

About this bridge

Is 64 E over CO North Forty DR to Sor is a steel continuous stringer/multi-beam or girder carrying Is 64 E over CO North Forty DR to Sor in St. Louis County, Missouri. It was built in 1985, so it is 40 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 64,631 vehicles a day, roughly 11% of them trucks, projected to reach 80,789 by 2044. The structure is 230 ft (70.1 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 64 E
CrossesCO North Forty DR to Sor
LocationS 13 T 45 N R 4 E
RouteInterstate 64
Coordinates38.64223, -90.51038
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating38.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length230 ft (70.1 m)
Longest span100 ft (30.5 m)
Deck width52 ft (16 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,631 (2024)
Projected traffic80,789 by 2044
Trucks11%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 64 E over CO North Forty DR to Sor built?

It was built in 1985, making it 40 years old in 2025.

What condition is Is 64 E over CO North Forty DR to Sor in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Is 64 E over CO North Forty DR to Sor carry?

About 64,631 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Is 64 E over CO North Forty DR to Sor?

The structure is 230 ft (70.1 m) long with a longest span of 100 ft (30.5 m) and a deck 52 ft wide.

Who owns Is 64 E over CO North Forty DR to Sor?

It is owned by the State Highway Agency.