US Bridges

16th ST over Metrolink

FairPosted for load

St. Louis city, Missouri · S 363 T 45 N R 7 E · Structure no. 32031

Built
1991
34 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
14,500
2023 count
Owner
Local
Other Local Agency

About this bridge

16th ST over Metrolink is a prestressed concrete continuous tee beam carrying 16th ST over Metrolink in St. Louis city, Missouri. It was built in 1991, so it is 34 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. Its operating status is: posted for load restriction.

It carries about 14,500 vehicles a day, roughly 5% of them trucks, projected to reach 19,575 by 2043. The structure is 126 ft (38.4 m) long and 65 ft wide.

Location

Open in Google Maps
Carries16th ST
CrossesMetrolink
LocationS 363 T 45 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.62616, -90.20484
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span50 ft (15.1 m)
Deck width65 ft (19.7 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2023)
Projected traffic19,575 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 16th ST over Metrolink built?

It was built in 1991, making it 34 years old in 2025.

What condition is 16th ST 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 16th ST over Metrolink carry?

About 14,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 16th ST over Metrolink?

The structure is 126 ft (38.4 m) long with a longest span of 50 ft (15.1 m) and a deck 65 ft wide.

Who owns 16th ST over Metrolink?

It is owned by the Other Local Agency.