
The
Panama Canal is approximately 80 kilometers long between the
Atlantic and Pacific Oceans. This waterway was cut through
one of narrowest saddles of the isthmus that joins North and
South America.
The Canal uses a system of locks -compartments with entrance
and exit gates. The locks function as water lifts: they raise
ships from sea level (the Pacific or the Atlantic) to the
level of Gatun Lake (26 meters above sea level); ships then
sail the channel through the Continental Divide.
Each set of locks bears the name of the townsite where it
was built: Gatun (on the Atlantic side), and Pedro Miguel
and Miraflores (on the Pacific side).
The
lock chambers -steps-- are 33.53 meters wide by 304.8 meters
long. The maximum dimensions of ships that can transit the
Canal are: 32.3 meters in beam; draft -their depth reach-
12 meters in Tropical Fresh Water; and 294.1 meters long (depending
on the type of ship).
The water used to raise and lower vessels in each set of
locks comes from Gatun Lake by gravity; it comes into the
locks through a system of main culverts that extend under
the lock chambers from the sidewalls and the center wall.
The narrowest portion of the Canal is Culebra Cut, which
extends from the north end of Pedro Miguel Locks to the south
edge of Gatun Lake at Gamboa. This segment, approximately
13.7 kilometers long, is carved through the rock and shale
of the Continental Divide.
Ships
from all parts of the world transit daily through the Panama
Canal. Some 13 to 14 thousand vessels use the Canal every
year. In fact, commercial transportation activities through
the Canal represent approximately 5% of the world trade.
The Canal has a work force of approximately 9 thousand employees
and operates 24 hours a day, 365 days a year, providing transit
service to vessels of all nations without discrimination.