Key facts
- A large crack has opened across the walkway of Pacifica's pier.
- The pier has been closed to the public.
- The structure is at risk of crumbling into the sea.
- City workers found cracks and missing concrete on the pier.
The historic pier in Pacifica, California, has been closed to the public after a significant crack formed across its walkway. The immense fissure has raised concerns that the structure could crumble into the sea. The closure took effect early Thursday morning as authorities assessed the damage to the beloved landmark. City workers discovered the cracks and missing concrete, highlighting the vulnerability of coastal structures to rising sea levels.