US Bridges

Delmar Blvd over Metrolink

Fair

St. Louis city, Missouri · S 12 T 45 N R 6 E · Structure no. 31822

Built
2008
17 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
83 ft
2 main spans
Daily traffic
17,300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Delmar Blvd over Metrolink is a prestressed concrete continuous box beam or girders - multiple carrying Delmar Blvd over Metrolink in St. Louis city, Missouri. It was built in 2008, so it is 17 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 17,300 vehicles a day, roughly 5% of them trucks, projected to reach 23,355 by 2043. The structure is 83 ft (25.3 m) long and 98 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesDelmar Blvd
CrossesMetrolink
LocationS 12 T 45 N R 6 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.65491, -90.29417
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
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 rating82.3 US tons
Inventory rating37.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length83 ft (25.3 m)
Longest span42 ft (12.8 m)
Deck width98 ft (29.9 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,300 (2023)
Projected traffic23,355 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Delmar Blvd over Metrolink built?

It was built in 2008, making it 17 years old in 2025.

What condition is Delmar Blvd over Metrolink 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 April 2023.

How much traffic does Delmar Blvd over Metrolink carry?

About 17,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Delmar Blvd over Metrolink?

The structure is 83 ft (25.3 m) long with a longest span of 42 ft (12.8 m) and a deck 98 ft wide.

Who owns Delmar Blvd over Metrolink?

It is owned by the City or Municipal Highway Agency.