Specifications include, but are not limited to: Maintenance of Work Areas. The Contractor shall be responsible for maintenance of all work areas, including all signs and barricades during performance of the work. The Contractor shall be available 24 hours per day to respond to calls or notification from the City regarding maintenance of signs, barricades, work site equipment, or other work site conditions. The Contractor shall provide the City with the telephone numbers where the City can contact the Contractor at any time. Upon receiving notification of the need to perform any type of maintenance to any work site, the Contractor shall immediately respond and make such temporary repairs or reset signs and barricades as required to return the work site to a safe and proper operating condition. Often the City is called about hazardous work site conditions or barricades knocked down. It is the City's obligation and policy to respond to calls as soon as possible without regard to agency responsibility. If it can be easily determined which Contractor has responsibility then that Contractor will be notified. However, the City reserves the right to respond to any such calls to remedy a hazardous condition. The Contractor shall reimburse the City for the costs of time, equipment, and materials for response to any such call connected with the Contractor's work. The Contractor shall have a licensed land surveyor reestablish any property irons that are damaged or destroyed.