Corruption: - In overall and each stage of construction process corruption investigated as most critical cause to delays in Ethiopian construction industry. Corruption has not mostly identified as a major cause of project delay in previous study. Therefore, this factor considered unique to construction projects in Ethiopia.
Unavailability of utilities in site: - the respondents agreed absence of utilities in site such as water, electricity, or telephone were the common major causes of project delay especially in large projects. which is not as common cause to other studies. The cause materializes due to expectance of the contractors to fulfill the utility and facility by government.
Inflation or price increases in materials:- Inflation or price increases in materials also has