US Bridges

US 50 E over Rp IS255N to IS55N

Fair

St. Louis County, Missouri · S 34 T 44 N R 6 E · Structure no. 10086

Built
1995
30 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
56 ft
1 main span
Daily traffic
29,869
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 E over Rp IS255N to IS55N is a prestressed concrete continuous stringer/multi-beam or girder carrying US 50 E over Rp IS255N to IS55N in St. Louis County, Missouri. It was built in 1995, so it is 30 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 29,869 vehicles a day, roughly 6% of them trucks, projected to reach 41,817 by 2044. The structure is 56 ft (17.1 m) long and 121 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 E
CrossesRp IS255N to IS55N
LocationS 34 T 44 N R 6 E
RouteU.S. Route 50
Coordinates38.51102, -90.33515
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
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 rating93.3 US tons
Inventory rating55.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length56 ft (17.1 m)
Longest span56 ft (17.1 m)
Deck width121 ft (37 m)
Roadway width119 ft (36.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,869 (2024)
Projected traffic41,817 by 2044
Trucks6%
Lanes on structure8
Traffic directionTwo-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 US 50 E over Rp IS255N to IS55N built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 50 E over Rp IS255N to IS55N 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 July 2024.

How much traffic does US 50 E over Rp IS255N to IS55N carry?

About 29,869 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US 50 E over Rp IS255N to IS55N?

The structure is 56 ft (17.1 m) long with a longest span of 56 ft (17.1 m) and a deck 121 ft wide.

Who owns US 50 E over Rp IS255N to IS55N?

It is owned by the State Highway Agency.