Top 10 Most Costly Construction Projects Ever
9. Large-scale excavation
Place: USA
Year Completed: 2007
Total Cost: $24.3 Billion*
The Central Artery/Tunnel Project, commonly referred to as the Big Dig, began planning in 1982 and took over 20 years to reach completion. This monumental infrastructure project aimed to alleviate traffic congestion in Boston by rerouting the Central Artery underground, ultimately transforming the city’s landscape.
Finished in 2007, the Big Dig was met with immense relief and gratitude from Bostonians, who had endured years of construction and disruption. With a total cost of approximately $24.3 billion, it remains one of the most expensive highway projects in U.S. history.
In conclusion, the Big Dig not only improved traffic flow but also revitalized urban spaces in Boston, creating parks and public areas above the tunnels. Its completion marked a significant achievement in civil engineering and urban planning, leaving a lasting impact on the city.
Photo Credit: Big Dig on Pinterest and @engenharia360
The Big Dig transformed Boston's transportation infrastructure through an extensive network of highways, tunnels, and bridges, effectively rerouting traffic away from the city’s most congested areas. However, the project was not without its challenges. In 2001, the Turnpike Authority discovered thousands of leaks, a consequence of subcontractors neglecting to remove gravel and debris before pouring concrete.
A significant leak in the Interstate 93 north tunnel occurred in late summer 2004, leading to its temporary closure for essential repairs. After twenty-six years of construction, numerous incidents, and a staggering cost of $24.3 billion, the long and arduous journey of the Big Dig came to an end.
In conclusion, while the Big Dig faced many obstacles and controversies, its completion marked a pivotal moment for Boston. The project not only improved traffic flow but also enhanced the city's urban landscape, leaving a lasting legacy that continues to impact residents and visitors alike.
