US Bridges

Is 270 E over Rp IS270E to IS64W Rp

Fair

St. Louis County, Missouri · S 15 T 45 N R 5 E · Structure no. 3813

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
118 ft
1 main span
Daily traffic
199,283
2024 count
Owner
State
State Highway Agency

About this bridge

Is 270 E over Rp IS270E to IS64W Rp is a steel continuous stringer/multi-beam or girder carrying Is 270 E over Rp IS270E to IS64W Rp in St. Louis County, Missouri. It was built in 1993, so it is 32 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 199,283 vehicles a day, roughly 18% of them trucks, projected to reach 249,104 by 2044. The structure is 118 ft (36 m) long and 129 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 270 E
CrossesRp IS270E to IS64W Rp
LocationS 15 T 45 N R 5 E
RouteInterstate 270
CountySt. Louis County
StateMissouri
Coordinates38.63868, -90.44967
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length118 ft (36 m)
Longest span118 ft (36 m)
Deck width129 ft (39.3 m)
Roadway width127 ft (38.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic199,283 (2024)
Projected traffic249,104 by 2044
Trucks18%
Lanes on structure8
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 270 E over Rp IS270E to IS64W Rp built?

It was built in 1993, making it 32 years old in 2025.

What condition is Is 270 E over Rp IS270E to IS64W Rp 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 October 2024.

How much traffic does Is 270 E over Rp IS270E to IS64W Rp carry?

About 199,283 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Is 270 E over Rp IS270E to IS64W Rp?

The structure is 118 ft (36 m) long with a longest span of 118 ft (36 m) and a deck 129 ft wide.

Who owns Is 270 E over Rp IS270E to IS64W Rp?

It is owned by the State Highway Agency.