User:Kmika11/sandbox

Inner Harbor
The inner harbor was historically the main port of Boston and is still the site of most of its port facilities as well as the Boston waterfront, which has been redeveloped for residential and recreational uses. The inner harbor extends from the mouths of the Charles River and the Mystic River, both of which empty into the harbor, to Logan International Airport and Castle Island, where the inner harbor meets the outer harbor.

Land Fill
In the 1830s members of the maritime community observed physical decay in the harbor. Islands in the outer harbor were visibly deteriorating and erosion was causing weathered materials and sediment to move from where it was protecting the harbor to where it would do the most harm. Recent shoaling experiences and comparisons with old charts caused observers to insist that the inner harbor was also filling and created widespread anxiety about the destruction of the Boston Harbor. Although the scientific understanding of hydraulics was still in its infancy and there were high degrees of uncertainty regarding the meeting of land and water, scientists and engineers began to describe the Boston Harbor as a series of channels created and maintained by the scouring force of water moving in and out of the harbor, river systems, and tidal reservoirs. This interpretation came to be known as the theory of Tidal scour. This understanding of the harbor as a dynamic landscape assuaged concerns some had over the negative impacts of land fill operations of land and real estate developers.

As the 19th century progressed the acceleration of urban growth dramatically increased the need for more land. The Ordinance of 1641 extended the property rights of riparian owners from the line of low tide to a maximum distance of one hundred rods from the line of high tide. Generally, other states drew the line of private property at high tide. However, extending shore lines into bordering bodies of water was not unique to Boston. Chicago built into Lake Michigan, New York extended itself into the Hudson and East rivers, and San Francisco reclaimed sections of its bay. The Boston Harbor's unique geography inspired the law that made land reclamation such a widespread activity in Boston. By the end of the nineteenth century the city had created more land in two generations than it had in the previous two centuries.