US Bridges

Or 270 E over BNSF RR

FairPosted for load

St. Louis County, Missouri · S 34 T 47 N R 7 E · Structure no. 5408

Built
1931
94 years old, rebuilt 1979
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
139 ft
1 main span
Daily traffic
2,088
2024 count
Owner
State
State Highway Agency

About this bridge

Or 270 E over BNSF RR is a concrete tee beam carrying Or 270 E over BNSF RR in St. Louis County, Missouri. It was built in 1931 and reconstructed in 1979, so it is 94 years old, older 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 5 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 2,088 vehicles a day, roughly 4% of them trucks, projected to reach 3,132 by 2044. The structure is 139 ft (42.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOr 270 E
CrossesBNSF RR
LocationS 34 T 47 N R 7 E
RouteState Highway 270
CountySt. Louis County
StateMissouri
Coordinates38.76819, -90.20861
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 20
Structure length139 ft (42.4 m)
Longest span41 ft (12.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,088 (2024)
Projected traffic3,132 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 Or 270 E over BNSF RR built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1979.

What condition is Or 270 E 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 August 2024.

How much traffic does Or 270 E over BNSF RR carry?

About 2,088 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Or 270 E over BNSF RR?

The structure is 139 ft (42.4 m) long with a longest span of 41 ft (12.6 m) and a deck 43 ft wide.

Who owns Or 270 E over BNSF RR?

It is owned by the State Highway Agency.