In an emergency or when the city council shall determine that the public interest,
health, morals or safety demand such action, any park, square, avenue, grounds or
recreation center, or any part or portion thereof, may be closed against the public
and all persons may be excluded therefrom until such emergency or other reason upon
which such determination of the city council is based has ceased, and upon the cessation
thereof the park, square, avenue, grounds or recreation center, or part or portion
thereof, so closed shall again be reopened to the public by order of the city council.
