Datetimes ...

The date and time shown is based on the event code.

The status is based on the event code of getting to, using, and leaving the lock.

2000 to current data: Start of the day is 0000. End of the day is 2359.
1992 to 1999 data: Start of the day was 0001. End of the day was 2400.

Event Code Status Description
ARR Arriving

ARR (Arrival)- The datetime that the vessel arrived and is ready to lock through.

SOL Locking

SOL (Start of Lockage) - The datetime that the vessel started locking through the chamber. This occurs when the lock and vessel are ready to lock. It is the earliest of the stern of the outbound vessel being next to either the bow of the incoming vessel or the designated arrival point.

In the case of a lock stoppage, the datetime is the time the lock stoppage started.

BOS Locking BOS (Bow over Sill) - The time when the bow of the entering vessel is abreast of the lock gates and it is in a position parallel to the guide wall to enter the chamber.
EOE Locking EOE (End of Entry) - Earliest of these 2 times: 1) The time when the entering vessel is secured within the lock and the gates are clear 2) The closing of the gates has been initiated.
SOE Locking SOE (Start of Exit) - The time when the exit gates are fully in their recesses and the horn has been sounded. If the vessel starts its exit prior to the gates being fuly opened, the Start of Exit Time is when the bow of the exiting vessel crosses the gate sill.
BYE Locking BYE (Bye) - When the headline is thrown and the vessel is ready to go.
EOL Done

EOL (End of Lockage) - The datetime that the vessel ended its lockage. When a lock has completed serving a vessel and can be dedicated to serving another vessel or when the stern of the vessel is next to the arrival point.

In the case of a lock stoppage, the datetime is the time the lock stoppage ended.