US Bridges

Ross Ave over Br of Creve Coeur

FairPosted for load

St. Louis County, Missouri · S 33 T 46 N R 5 E · Structure no. 15569

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
7,027
2024 count
Owner
County
County Highway Agency

About this bridge

Ross Ave over Br of Creve Coeur is a prestressed concrete box beam or girders - multiple carrying Ross Ave over Br of Creve Coeur in St. Louis County, Missouri. It was built in 1958, so it is 67 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 5 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 7,027 vehicles a day, roughly 1% of them trucks, projected to reach 9,486 by 2044. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRoss Ave
CrossesBr of Creve Coeur
LocationS 33 T 46 N R 5 E
RouteCounty Highway 0
Coordinates38.68562, -90.45726
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.4 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,027 (2024)
Projected traffic9,486 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$320,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ross Ave over Br of Creve Coeur built?

It was built in 1958, making it 67 years old in 2025.

What condition is Ross Ave over Br of Creve Coeur 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 March 2024.

How much traffic does Ross Ave over Br of Creve Coeur carry?

About 7,027 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Ross Ave over Br of Creve Coeur?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns Ross Ave over Br of Creve Coeur?

It is owned by the County Highway Agency.