City Construction Residential Damage — Contact

The city recently did construction on a bunch of sidewalk corners in the Alamitos Beach. Unfortunately our exterior stairs are now splattered with dried pavement and filthy as well as one entire stair being cracked. Does anyone know who I could contact in the City to effectively come fix this?

The guy today said they’d be by to make it right while they were picking up the cones but I want to make sure I have a plan for when they don’t. Any help is appreciated — Thanks!