General information about how this market works, not legal, regulatory, tax or financial advice. It does not indicate that Zeaclub maintains an office in New Orleans. Requirements depend on the applicable authority, contract and jurisdiction, and change without notice.
New Orleans at a glance
| New Orleans | |
|---|---|
| Competent authority | United States Coast Guard, Sector New Orleans |
| Compulsory pilotage | Associated Branch Pilots, Crescent River Port Pilots and NOBRA Pilots in relay |
| Approach constraint | Long Mississippi River transit via Southwest Pass; current, silting and fog govern the passage |
| Port state control | USCG port state control regime (outside the MoU structure) |
| Register | US flag for domestic trades under the Jones Act; foreign flags in international trades |
| Principal ports | Port of New Orleans, South Louisiana, Baton Rouge, Plaquemines |
| Currency | USD |
| Time zone | CST (UTC-6) / CDT |
What changes in New Orleans
Mississippi River distances are the most frequently misstated in US trade. Terminals run from the passes to Baton Rouge, so the inland component varies enormously depending on which berth a vessel is working, and published sea distances almost never include it.
The river also imposes a speed regime of its own. Current, traffic and restricted stretches mean transit time is not simply distance over speed, and high water changes it again. Modelling a Mississippi voyage requires a river leg with its own assumptions rather than an extension of the ocean passage.
- Terminals span from the passes to Baton Rouge — the inland leg varies enormously.
- Published sea distances almost never include the river component.
- Current and traffic mean transit time is not distance over speed.
- High water changes the river regime again, and seasonally.
- The river leg needs its own assumptions in any voyage model.
Distance components on the Lower Mississippi
| Component | Treatment |
|---|---|
| Ocean passage | Standard Gulf routing to the passes |
| Southwest Pass entry | Draft-limited; may require prior lightering |
| River transit | Varies enormously by terminal; usually excluded from tables |
| Current and traffic | Transit time is not distance over speed |
| High water | Changes the regime seasonally |
The New Orleans cluster
The Lower Mississippi is the largest bulk-handling river system in the world, moving grain, petrochemicals and coal through a chain of terminals from the passes to Baton Rouge. Pilotage runs in relay across three separate associations, and the river itself — current, silting, fog and high-water restrictions — is the dominant operational variable.
- Largest US grain export corridor
- Extensive petrochemical berths
- Midstream and anchorage transfer operations
- Deep inland barge connectivity
The fundamentals
A great-circle line between two ports is the shortest theoretical path on a sphere — and it routinely runs straight through land. Real sea distance is the sum of great-circle legs between the ports and every chokepoint the voyage actually has to pass through, which is a materially different, and usually longer, number.
This is the shared explanation, common to every market. The full treatment is in How Port-to-Port Sailing Distance Is Actually Calculated.
Frequently asked questions
Why are Mississippi distances so often wrong?
Because the river leg is both large and variable, and published sea distances stop at the passes. A berth near the passes and a berth at Baton Rouge are very different voyages, and current and traffic mean the transit time does not follow simply from the mileage.
How should a Mississippi voyage be modelled?
As an ocean passage plus a distinct river leg with its own speed and delay assumptions, adjusted for the season. Treating the river as an extension of the ocean passage systematically understates the time.
Primary sources
- United States Coast GuardAccessed 2026-08-30
- USCG Office of Commercial Vessel ComplianceAccessed 2026-08-30