Deep DiveTL;DR
- Louisiana ranks 7th worst for road quality with 28% of roads in poor condition, per MoneyGeek/FHWA data.
- Three Louisiana metros rank in the worst 20 nationally: New Orleans (#8), Baton Rouge (#17), and Lafayette (#18), per Pep Boys 2025 data.
- Subsidence is the unique factor. New Orleans is sinking, and the roads are sinking with it, creating damage patterns that standard maintenance cannot fix.
Key Numbers at a Glance
| Stat | Number | Source | Date |
|---|---|---|---|
| Road roughness index (7th worst) | 129.6 | MoneyGeek / FHWA | 2025 |
| Roads in poor condition | 28% | MoneyGeek / FHWA | 2025 |
| Roads in poor condition (urban) | 36% | MoneyGeek / FHWA | 2025 |
| Spending per lane mile | $23,674 | MoneyGeek / FHWA | 2025 |
| New Orleans worst metro ranking | #8 | Pep Boys | 2025 |
| Baton Rouge worst metro ranking | #17 | Pep Boys | 2025 |
| Lafayette worst metro ranking | #18 | Pep Boys | 2025 |
Last verified: April 2026
Louisiana's road problem is not like other states. In most of the country, bad roads come from cold weather, deferred maintenance, or heavy traffic. Louisiana has all three, plus something no amount of road spending can easily fix: the ground is sinking.
The Subsidence Problem
New Orleans sits on soft alluvial soil that is actively compacting. Parts of the city sink 1 to 2 inches per year. When the ground beneath a road drops, the road drops with it, creating dips, cracks, and surface failures that look like potholes but are actually structural.
Standard pothole patching does not fix subsidence damage. The patch sits on the same sinking soil and fails within months. Real fixes require base reconstruction, which costs 10 to 50 times more than surface patching.
Three Metros, One Problem
Louisiana is unusual in having three metros in the Pep Boys worst 20:
New Orleans (#8): Subsidence, flooding, and poor drainage create road surfaces that are unpredictable. A smooth street one month can have 6-inch dips the next.
Baton Rouge (#17): Heavy petrochemical industry truck traffic accelerates pavement breakdown on corridors built for lighter loads.
Lafayette (#18): Oil field traffic, flooding, and soft soil combine for rapid road deterioration.
The Water Factor
Louisiana gets an average of 60 inches of rain per year, more than almost any other state. Water is the enemy of roads everywhere, but in Louisiana it is relentless:
- Rainfall undermines road bases
- Flooding deposits sediment and debris on road surfaces
- Poor drainage means standing water softens asphalt for extended periods
- Hurricane damage to roads can take years to fully repair
What This Costs Louisiana Drivers
With 36% of urban roads in poor condition and three metros in the national worst 20, Louisiana drivers face above-average road damage costs. The national urban average is $750 per year. Louisiana drivers, especially in New Orleans, likely exceed that.
The 25% tariff on imported tires hits Louisiana drivers especially hard because the state's road conditions demand more frequent tire replacement than the national average.
What You Should Do
- Drive slowly on unfamiliar streets in New Orleans. Subsidence creates sudden dips that are invisible until you are on top of them.
- Get suspension inspected annually. Louisiana's uneven roads stress suspension components in ways that flat-state driving does not.
- Check tire sidewalls regularly. Potholes and road dips cause sidewall bulges that can lead to blowouts.
- Budget $60 to $80 per month for road-related vehicle costs in metro areas.
- Report road damage through your city or parish reporting system. In New Orleans, use 311 or the NOLA 311 app.
Part of the "America's Most Expensive Roads" series. Read the national overview for the full state ranking and tariff breakdown.