Functionality Mistakes Throughout History That Were Way Too Expensive to Fix

From 1982 to 2004, Boston undertook the ‘Big Dig,’ involving the rerouting of I-93 into the Thomas P. O’Neill Jr. Tunnel. Spearheaded by Parsons Brinckerhoff and Bechtel, the aim was new tunnels and roadways, ballooning from an initial $7.4 billion to a staggering $22 billion.

Marked by cost overruns, design flaws, and myriad issues, the ‘Big Dig’ extended beyond its 1990s deadline to 2004, costing $22 billion – a 190% increase. Despite its ambition, this project faced delays, criminal arrests, and was marred by a tragic fatality.