US Bridges

Mo 141 N over Or 44 BNSF RR

Fair

St. Louis County, Missouri · S 19 T 44 N R 5 E · Structure no. 3369

Built
1984
41 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
444 ft
6 main spans
Daily traffic
28,189
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 141 N over Or 44 BNSF RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 141 N over Or 44 BNSF RR in St. Louis County, Missouri. It was built in 1984, so it is 41 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 28,189 vehicles a day, roughly 5% of them trucks, projected to reach 35,236 by 2044. The structure is 444 ft (135.3 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMo 141 N
CrossesOr 44 BNSF RR
LocationS 19 T 44 N R 5 E
RouteState Highway 141
CountySt. Louis County
StateMissouri
Coordinates38.54146, -90.49524
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length444 ft (135.3 m)
Longest span89 ft (27.1 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,189 (2024)
Projected traffic35,236 by 2044
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$3.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 141 N over Or 44 BNSF RR built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mo 141 N over Or 44 BNSF RR 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 Mo 141 N over Or 44 BNSF RR carry?

About 28,189 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 141 N over Or 44 BNSF RR?

The structure is 444 ft (135.3 m) long with a longest span of 89 ft (27.1 m) and a deck 41 ft wide.

Who owns Mo 141 N over Or 44 BNSF RR?

It is owned by the State Highway Agency.