US Bridges

Walnut ST E over Is 44

Fair

St. Louis city, Missouri · S 24 T 45 N R 7 E · Structure no. 34444

Built
2014
11 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
8,322
2024 count
Owner
State
State Highway Agency

About this bridge

Walnut ST E over Is 44 is a prestressed concrete tee beam carrying Walnut ST E over Is 44 in St. Louis city, Missouri. It was built in 2014, so it is 11 years old, younger 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 8,322 vehicles a day, roughly 10% of them trucks, projected to reach 12,483 by 2044. The structure is 97 ft (29.6 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWalnut ST E
CrossesIs 44
LocationS 24 T 45 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.62396, -90.18777
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating50.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length97 ft (29.6 m)
Longest span94 ft (28.7 m)
Deck width100 ft (30.5 m)
Roadway width83 ft (25.4 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic8,322 (2024)
Projected traffic12,483 by 2044
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Walnut ST E over Is 44 built?

It was built in 2014, making it 11 years old in 2025.

What condition is Walnut ST E over Is 44 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 August 2023.

How much traffic does Walnut ST E over Is 44 carry?

About 8,322 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Walnut ST E over Is 44?

The structure is 97 ft (29.6 m) long with a longest span of 94 ft (28.7 m) and a deck 100 ft wide.

Who owns Walnut ST E over Is 44?

It is owned by the State Highway Agency.