Design collaboration is an essential component of civil engineering projects, as it requires the coordination and communication of different parties with various roles, responsibilities, and interests. However, design collaboration can present several challenges, such as data silos and fragmentation, data security and privacy, and data ownership and trust. Blockchain can help address these issues by providing a common and secure platform for design collaboration. It can store and link different types of design data, such as drawings, models, specifications, contracts, and approvals in a standardized way. Blockchain also records the provenance, history, and status of design data to create a single source of truth that is visible and verifiable by all parties. Moreover, it assigns and enforces data rights and permissions to ensure only authorized parties can access or modify the data. Additionally, blockchain uses consensus mechanisms and smart contracts to verify and approve design data to meet the requirements and standards of the project. Furthermore, it can detect errors or conflicts in design data to resolve discrepancies.