The most common causes of construction delays include financial causes, contractor causes and equipment causes. Other issues may include political and environmental causes, such as paperwork issues and unforeseen weather problems.
Project delays are highly detrimental to the progress of a highway construction project, as they may increase long-term costs and projected completion times. Specific financial causes for construction delays include errors in payments to the employees, which are sometimes caused by poor calculations of project costs and issues in communications between clients and construction professionals. Equipment breakdowns may also impede the progress of construction projects, especially in large-scale situations.