All bridges and waterways are mined.
5 seconds sound clip from the Escape from New York movie soundboard.
You can hear this line at 00:03:31 in the Blu-ray version of the movie.
Quote context
[...]
- In 1988, the crime rate in the United States rises four hundred percent.
- The once-great city of New York becomes the one maximum-security prison for the entire country.
- All bridges and waterways are mined.
- The United States Police Force, like an army, is encamped around the island.
- There are no guards inside the prison: only prisoners and the worlds they have made.
- The rules are simple. Once you go in, you don't come out.
- You have 10 seconds. Turn around. Start back to the island.
[...]