What challenges did the builders of the zakim bridge face during construction?

The builders of the Zakim Bridge faced several challenges during its construction, including the complex design and engineering requirements of its unique cable-stayed structure. They had to navigate logistical issues related to working in a densely populated urban area, which included minimizing disruptions to traffic and local businesses. Additionally, the extreme weather conditions in Boston posed challenges, requiring careful planning to ensure safety and structural integrity throughout the construction process. Finally, the project demanded innovative solutions to manage the large-scale construction materials and techniques involved.