BALTIMORE—When the Baltimore and Potomac Railroad completed its 1.4-mile tunnel in 1873, a local newspaper hailed it as “one of the greatest enterprises of the kind that has ever been executed.”
Today, it is Amtrak’s worst bottleneck on its most-traveled corridor between Washington and New Jersey. The passenger railroad plans to construct a new 2-mile tunnel several blocks away, and it is counting on funding in the roughly $1 trillion infrastructure bill to cover much of the project’s $4 billion tab.
