US Bridges

Baumgartner RD over BNSF RR

FairPosted for load

St. Louis County, Missouri · S 15 T 43 N R 6 E · Structure no. 15646

Built
1981
44 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
173 ft
3 main spans
Daily traffic
12,499
2024 count
Owner
County
County Highway Agency

About this bridge

Baumgartner RD over BNSF RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Baumgartner RD over BNSF RR 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 12,499 vehicles a day, roughly 25% of them trucks, projected to reach 16,874 by 2044. The structure is 173 ft (52.7 m) long and 56 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBaumgartner RD
CrossesBNSF RR
LocationS 15 T 43 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.45818, -90.33736
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 alignment6: Equal to present minimum criteria
Operating rating50.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length173 ft (52.7 m)
Longest span68 ft (20.7 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,499 (2024)
Projected traffic16,874 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Baumgartner RD over BNSF RR built?

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

What condition is Baumgartner RD over 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 April 2024.

How much traffic does Baumgartner RD over BNSF RR carry?

About 12,499 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Baumgartner RD over BNSF RR?

The structure is 173 ft (52.7 m) long with a longest span of 68 ft (20.7 m) and a deck 56 ft wide.

Who owns Baumgartner RD over BNSF RR?

It is owned by the County Highway Agency.