US Bridges

Rp IS270E to IS64E over Rt Jj

Fair

St. Louis County, Missouri · S 15 T 45 N R 5 E · Structure no. 3752

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
180 ft
3 main spans
Daily traffic
18,160
2024 count
Owner
State
State Highway Agency

About this bridge

Rp IS270E to IS64E over Rt Jj is a prestressed concrete continuous stringer/multi-beam or girder carrying Rp IS270E to IS64E over Rt Jj in St. Louis County, Missouri. It was built in 1990, so it is 35 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 5 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 18,160 vehicles a day, roughly 18% of them trucks, projected to reach 22,700 by 2044. The structure is 180 ft (54.9 m) long and 53 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRp IS270E to IS64E
CrossesRt Jj
LocationS 15 T 45 N R 5 E
RouteState Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.63834, -90.44352
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span95 ft (29 m)
Deck width53 ft (16.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,160 (2024)
Projected traffic22,700 by 2044
Trucks18%
Lanes on structure3
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 IS270E to IS64E over Rt Jj built?

It was built in 1990, making it 35 years old in 2025.

What condition is Rp IS270E to IS64E over Rt Jj 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 Rp IS270E to IS64E over Rt Jj carry?

About 18,160 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Rp IS270E to IS64E over Rt Jj?

The structure is 180 ft (54.9 m) long with a longest span of 95 ft (29 m) and a deck 53 ft wide.

Who owns Rp IS270E to IS64E over Rt Jj?

It is owned by the State Highway Agency.