foundations to enable the construction of the Flight 93 National Memorial. After 14 years of planning and development, the Flight 93 National Memorial was completed and opened to family members of the victims on September 10, 2015. Land acquisition The boundaries of the National Memorial extend from Lambertsville Road to U.S. Route 30 (Lincoln Highway), where the entrance is located. It is about , of which about are privately held but protected through partnership agreements. The memorial site itself is a bowl-shaped area, with surrounding as a buffer. In December 2002, landowner Tim Lambert donated at the crash site and entered discussions with the Conservation Fund regarding an additional . Using some funds donated from receipts for the film United 93, the Families of Flight 93 organization purchased in the summer of 2006. The organization sought $10 million in federal funding to use for acquiring land. In November 2006, the Conservation Fund acquired as buffer land, to be managed by the Pennsylvania Game Commission. PBS Coals Inc. sold to the families' organization in March 2008. Svonavec, Inc. owned a parcel, which was a reclaimed strip-mine. Michael Svonavec, working with appraiser Randall Bell, submitted a letter to the National Park Service in November 2003 with plans to build a museum and visitor's center on his land. Although the other property owners had sold their land for the memorial, Svonavec believed that the crash had increased the property value of its land to $23.3M, while the government only recognized the land as being worth its original value of $610,000. The Flight 93 Advisory Committee and the Families of Flight 93 wrote a letter to President George W. Bush, asking him to issue an Executive Order which would authorize the use of eminent domain to secure the land. Instead, Pennsylvania Senators pushed an amendment through Congress which allowed the Department of the Interior to seize the land by eminent domain. The question of compensation was unsolved, and so the case of United States v 275.81 Acres of Land was brought before a federal district court to determine proper compensation for the property. The court-appointed Commission concluded that the appropriate compensation was $1,535,000. Design competition Design selection The commission decided to select the design for the memorial through a multi-stage design competition funded by grants from the Heinz Foundations and the John S. and James L. Knight Foundation. The competition began on September 11,