US Bridges

Broadway Ave over Trra RR

FairPosted for load

St. Louis city, Missouri · S 34 T 46 N R 7 E · Structure no. 12988

Built
1977
48 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
93 ft
1 main span
Daily traffic
28,530
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Broadway Ave over Trra RR is a prestressed concrete continuous box beam or girders - multiple carrying Broadway Ave over Trra RR in St. Louis city, Missouri. It was built in 1977, so it is 48 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 28,530 vehicles a day, roughly 5% of them trucks, projected to reach 38,516 by 2043. The structure is 93 ft (28.3 m) long and 78 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesBroadway Ave
CrossesTrra RR
LocationS 34 T 46 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.6873, -90.22175
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
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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating41.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadH 20
Structure length93 ft (28.3 m)
Longest span48 ft (14.6 m)
Deck width78 ft (23.8 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,530 (2023)
Projected traffic38,516 by 2043
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Broadway Ave over Trra RR built?

It was built in 1977, making it 48 years old in 2025.

What condition is Broadway Ave over Trra RR 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 2023.

How much traffic does Broadway Ave over Trra RR carry?

About 28,530 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Broadway Ave over Trra RR?

The structure is 93 ft (28.3 m) long with a longest span of 48 ft (14.6 m) and a deck 78 ft wide.

Who owns Broadway Ave over Trra RR?

It is owned by the City or Municipal Highway Agency.