US Bridges

Bowles Ave S over Is 44

FairPosted for load

St. Louis County, Missouri · S 21 T 44 N R 5 E · Structure no. 3196

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
288 ft
2 main spans
Daily traffic
15,276
2024 count
Owner
State
State Highway Agency

About this bridge

Bowles Ave S over Is 44 is a steel continuous stringer/multi-beam or girder carrying Bowles Ave S over Is 44 in St. Louis County, Missouri. It was built in 1981, so it is 44 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. Its operating status is: posted for load restriction.

It carries about 15,276 vehicles a day, roughly 5% of them trucks, projected to reach 21,386 by 2044. The structure is 288 ft (87.8 m) long and 75 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBowles Ave S
CrossesIs 44
LocationS 21 T 44 N R 5 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.54277, -90.46938
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length288 ft (87.8 m)
Longest span121 ft (36.8 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,276 (2024)
Projected traffic21,386 by 2044
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 Bowles Ave S over Is 44 built?

It was built in 1981, making it 44 years old in 2025.

What condition is Bowles Ave S 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 June 2024.

How much traffic does Bowles Ave S over Is 44 carry?

About 15,276 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Bowles Ave S over Is 44?

The structure is 288 ft (87.8 m) long with a longest span of 121 ft (36.8 m) and a deck 75 ft wide.

Who owns Bowles Ave S over Is 44?

It is owned by the State Highway Agency.