While already on alert because of the high surf that hit the Monterey Bay coast Monday, Santa Cruz Lifeguards Lt. Isiah Mullen and Lt. Sam Hofmann, stationed on a Jet Ski in the water near Cowell

A part of the Santa Cruz Wharf collapsed Monday afternoon during a high-surf warning, with authorities confirming two people had to be pulled from the water.

Santa Cruz officials on Friday said they're working with engineers to study the collapsed wharf to make sure it's strong and stable before they open it to the public.