The Covid-19 pandemic has greatly affected the conditions of various sectors of life, one of which is the construction sector. The wharf construction project which must continue requires the addition of health protocols to the application of OHS to prevent the spread of Covid-19 as well as monitoring and controlling the implementation of OHS in the project area. This study aims to find out how the effect of the implementation of OHS as well as the monitoring and control of the implementation of OHS on the project. From the results of processing the questionnaire data sourced from construction workers in the Design and Build project of Strengthening and Elevating the Ocean Pier of Tanjung Emas Port, Semarang, it can be seen that there are 22 (twenty two) items of OHS implementation that have been implemented with the implementation of OHS that The most influential was the making of a circular about the dangers of Covid-19 and the precautions for Covid-19. From the research results it is also known that there are 8 (eight) monitoring and control measures on the implementation of OHS with the most influential action being the application of moderate sanctions for violations of prokes in the project area.