History of New York City (1784–1854) surged far beyond its rivals, reaching a population of 1,080,000 in 1860, compared to 566,000 in Philadelphia, 212,000 in Baltimore and 178,000 in Boston. Historian Robert Albion identifies four aggressive moves by New York entrepreneurs and politicians that helped it jump to the top of American cities. Of greatest importance, it sponsored the Erie Canal which began operations in 1825, forming a continuous water route from New York north to Albany via the Hudson River, then west to Buffalo using the new canal to reach the Great Lakes. It opened a large new market in upstate New York and the
Hatherton Canal re-aligned canal. In 2006, the engineers Arup produced a feasibility study for a replacement route for the destroyed section which would link to Grove Basin on the Cannock Extension Canal. Environmental concerns led to a second feasibility study being produced by Atkins in 2009, for a route which connected to the derelict Lord Hayes Branch on the Wyrley and Essington Canal. A short section near the junction with the Staffordshire and Worcestershire Canal is navigable, and the cost of restoring the rest and building the new route to the Wyrley and Essington was estimated at £44.1 million in 2009. The