As originally built the Suez canal was TINY compared to what it is today -- no more than 300 feet wide, and considerably narrower in some places.
There were "sidings" built into the canal that would allow ships to literally pull over so other ships could pass.
Now it's nearly 1,000 feet wide in many places and can accommodate ships up to 250-feet wide, or wider than the original width of parts of the original canal.