Olsen ave
Carrying Olsen ave over BARRIERE ROAD
1.8 MI. S. OF HWY. 23, Plaquemines, Louisiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Olsen ave
The Olsen ave bridge in Plaquemines, Louisiana carries Olsen ave over BARRIERE ROAD. It was built in 1960, making it 66 years old today. The structure is built primarily of steel and spans 5 sections, stretching 46.0 meters (151 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 4/9. 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 15.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Olsen ave compares
Live comparison across Louisiana.
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 How the historical reference is calculated.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
- 1960
- Material
- Steel
- Number of Spans
- 5
- Structure Length
- 46.0 m (151 ft)
- Deck Width
- 8.8 m (29 ft)
- Owner
- County Highway Agency
- Structure Number
- 023829515900061
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • 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 poor condition (4/9), showing advanced deterioration that may require priority repair.
How to read this record
Olsen ave 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 Olsen ave against other structures in Plaquemines and across Louisiana. Louisiana 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 Olsen ave?
Olsen ave in Plaquemines, Louisiana has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is Olsen ave inspected?
Olsen ave's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Olsen ave 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 Olsen ave?
Olsen ave has an NBI inventory load rating of 15.6 metric tons.
Who is responsible for maintaining Olsen ave?
Olsen ave is owned and maintained by County Highway Agency.
How old is Olsen ave and does age affect safety?
Olsen ave was built in 1960, making it 66 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.