I was tasked with assisting in the research and evaluation of the Lincoln Houses Roof Repair project, with a specific focus on the roof parameters and bulkheads. Although this project had started before the outbreak of the COVID-19 pandemic, it was put on hold by the NYCHA (New York City Housing Authority) due to financial limitations. However, in March 2022, the NYCHA recommenced the repair work on the roof and bulkheads. Upon the project's resumption, we encountered several changes at the site caused by existing damages. Upon further investigation, it became evident that the bulkheads had not been accurately surveyed in previous assessments. To address this issue, we conducted a thorough roof mapping exercise, diligently examining site notes and referring back to the original architectural plans. This allowed us to precisely identify the positions of the bulkheads and rectify any inconsistencies.