WEST FLORISSANT AV
Carrying WEST FLORISSANT AV over TRRA RR
S 33 T 46 N R 7 E, St. Louis city, Missouri
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: WEST FLORISSANT AV
The WEST FLORISSANT AV bridge in St. Louis city, Missouri carries WEST FLORISSANT AV over TRRA RR. It was built in 1959, making it 67 years old today. The structure is built primarily of steel and spans 1 section, stretching 24.1 meters (79 feet) end to end. Daily traffic averages 16,976 vehicles, placing it in the heavily-trafficked tier of Missouri bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 36.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How WEST FLORISSANT AV compares
Live comparison across Missouri.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1959
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 24.1 m (79 ft)
- Deck Width
- 34.1 m (112 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 16,976 vehicles/day
- Structure Number
- 324
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
WEST FLORISSANT AV is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare WEST FLORISSANT AV against other structures in St. Louis city and across Missouri. Missouri bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for WEST FLORISSANT AV?
WEST FLORISSANT AV in St. Louis city, Missouri has a deck rating of 7/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is WEST FLORISSANT AV inspected?
WEST FLORISSANT AV's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 16,976 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WEST FLORISSANT AV is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for WEST FLORISSANT AV?
WEST FLORISSANT AV has an NBI inventory load rating of 36.9 metric tons.
Who is responsible for maintaining WEST FLORISSANT AV?
WEST FLORISSANT AV is owned and maintained by State Highway Agency.
How old is WEST FLORISSANT AV and does age affect safety?
WEST FLORISSANT AV was built in 1959, making it 67 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.