US Bridges

Big Bend RD E over Is 270

Fair

St. Louis County, Missouri · S 10 T 44 N R 5 E · Structure no. 713

Built
1962
63 years old, rebuilt 2017
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
256 ft
4 main spans
Daily traffic
9,510
2024 count
Owner
State
State Highway Agency

About this bridge

Big Bend RD E over Is 270 is a steel continuous stringer/multi-beam or girder carrying Big Bend RD E over Is 270 in St. Louis County, Missouri. It was built in 1962 and reconstructed in 2017, so it is 63 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 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 9,510 vehicles a day, roughly 3% of them trucks, projected to reach 13,314 by 2044. The structure is 256 ft (78 m) long and 81 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesBig Bend RD E
CrossesIs 270
LocationS 10 T 44 N R 5 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.56724, -90.44002
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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 spans4
Design loadH 20
Structure length256 ft (78 m)
Longest span70 ft (21.3 m)
Deck width81 ft (24.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,510 (2024)
Projected traffic13,314 by 2044
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Big Bend RD E over Is 270 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2017.

What condition is Big Bend RD E over Is 270 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 Big Bend RD E over Is 270 carry?

About 9,510 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Big Bend RD E over Is 270?

The structure is 256 ft (78 m) long with a longest span of 70 ft (21.3 m) and a deck 81 ft wide.

Who owns Big Bend RD E over Is 270?

It is owned by the State Highway Agency.