US Bridges

Is 270 E over Is 44 Rp IS270E to Is

FairPosted for load

St. Louis County, Missouri · S 14 T 44 N R 5 E · Structure no. 810

Built
1962
63 years old, rebuilt 1996
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
371 ft
6 main spans
Daily traffic
176,520
2024 count
Owner
State
State Highway Agency

About this bridge

Is 270 E over Is 44 Rp IS270E to Is is a prestressed concrete continuous stringer/multi-beam or girder carrying Is 270 E over Is 44 Rp IS270E to Is in St. Louis County, Missouri. It was built in 1962 and reconstructed in 1996, 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. Its operating status is: posted for load restriction.

It carries about 176,520 vehicles a day, roughly 12% of them trucks, projected to reach 220,650 by 2044. The structure is 371 ft (113.1 m) long and 147 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 270 E
CrossesIs 44 Rp IS270E to Is
LocationS 14 T 44 N R 5 E
RouteInterstate 270
CountySt. Louis County
StateMissouri
Coordinates38.54853, -90.42697
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 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 + Mod
Structure length371 ft (113.1 m)
Longest span75 ft (22.9 m)
Deck width147 ft (44.9 m)
Roadway width142 ft (43.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176,520 (2024)
Projected traffic220,650 by 2044
Trucks12%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$9.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 270 E over Is 44 Rp IS270E to Is built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1996.

What condition is Is 270 E over Is 44 Rp IS270E to Is 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 Is 270 E over Is 44 Rp IS270E to Is carry?

About 176,520 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Is 270 E over Is 44 Rp IS270E to Is?

The structure is 371 ft (113.1 m) long with a longest span of 75 ft (22.9 m) and a deck 147 ft wide.

Who owns Is 270 E over Is 44 Rp IS270E to Is?

It is owned by the State Highway Agency.