US Bridges

Laural & Waterman over Metrolink

PoorPosted for load

St. Louis city, Missouri · S 1201 T 45 N R 6 E · Structure no. 12951

Built
1936
89 years old
Condition
Poor
inspected April 2024
Type
Slab
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
3,800
2023 count
Owner
County
County Highway Agency

About this bridge

Laural & Waterman over Metrolink is a concrete continuous slab carrying Laural & Waterman over Metrolink in St. Louis city, Missouri. It was built in 1936, so it is 89 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 3,800 vehicles a day, roughly 2% of them trucks, projected to reach 5,130 by 2043. The structure is 92 ft (28 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLaural & Waterman
CrossesMetrolink
LocationS 1201 T 45 N R 6 E
RouteCity Street 0
Coordinates38.65009, -90.28963
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating32.7 US tons
Inventory rating23.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length92 ft (28 m)
Longest span33 ft (10.1 m)
Deck width58 ft (17.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic5,130 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Laural & Waterman over Metrolink built?

It was built in 1936, making it 89 years old in 2025.

What condition is Laural & Waterman over Metrolink in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Laural & Waterman over Metrolink carry?

About 3,800 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Laural & Waterman over Metrolink?

The structure is 92 ft (28 m) long with a longest span of 33 ft (10.1 m) and a deck 58 ft wide.

Who owns Laural & Waterman over Metrolink?

It is owned by the County Highway Agency and maintained by the City or Municipal Highway Agency.