US Bridges

Rp IS64E to IS270E over Is 270 Rp IS270E to IS6

Good

St. Louis County, Missouri · S 15 T 45 N R 5 E · Structure no. 3811

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,074 ft
7 main spans
Daily traffic
15,103
2024 count
Owner
State
State Highway Agency

About this bridge

Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 is a steel continuous stringer/multi-beam or girder carrying Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 in St. Louis County, Missouri. It was built in 1988, so it is 37 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,103 vehicles a day, roughly 3% of them trucks, projected to reach 18,879 by 2044. The structure is 1,074 ft (327.4 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRp IS64E to IS270E
CrossesIs 270 Rp IS270E to IS6
LocationS 15 T 45 N R 5 E
RouteState Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.63735, -90.44939
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7 (+4 approach)
Design loadHS 20 + Mod
Structure length1,074 ft (327.4 m)
Longest span149 ft (45.5 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,103 (2024)
Projected traffic18,879 by 2044
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 carry?

About 15,103 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Rp IS64E to IS270E over Is 270 Rp IS270E to IS6?

The structure is 1,074 ft (327.4 m) long with a longest span of 149 ft (45.5 m) and a deck 30 ft wide.

Who owns Rp IS64E to IS270E over Is 270 Rp IS270E to IS6?

It is owned by the State Highway Agency.