US Bridges

Clayton RD E over Mo 141

FairPosted for load

St. Louis County, Missouri · S 24 T 45 N R 4 E · Structure no. 3341

Built
1987
38 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
312 ft
2 main spans
Daily traffic
22,335
2024 count
Owner
State
State Highway Agency

About this bridge

Clayton RD E over Mo 141 is a steel continuous stringer/multi-beam or girder carrying Clayton RD E over Mo 141 in St. Louis County, Missouri. It was built in 1987, so it is 38 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 22,335 vehicles a day, roughly 5% of them trucks, projected to reach 31,269 by 2044. The structure is 312 ft (95.1 m) long and 95 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesClayton RD E
CrossesMo 141
LocationS 24 T 45 N R 4 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.62538, -90.5133
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length312 ft (95.1 m)
Longest span121 ft (36.9 m)
Deck width95 ft (29 m)
Roadway width93 ft (28.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,335 (2024)
Projected traffic31,269 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 Clayton RD E over Mo 141 built?

It was built in 1987, making it 38 years old in 2025.

What condition is Clayton RD E over Mo 141 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 October 2024.

How much traffic does Clayton RD E over Mo 141 carry?

About 22,335 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Clayton RD E over Mo 141?

The structure is 312 ft (95.1 m) long with a longest span of 121 ft (36.9 m) and a deck 95 ft wide.

Who owns Clayton RD E over Mo 141?

It is owned by the State Highway Agency.