famous project was the completion of the Washington Monument. Construction on the monument had been abandoned 24 years earlier, in 1854, due to technical and managerial problems. In its place stood a 170-foot tall pile of marble which was leaning to the northwest due to an unstable foundation. The structure was a public embarrassment and target of criticism from newspapers across the nation. Casey was appointed to finish the job in 1878. Casey, then a lieutenant colonel and head of the Office of Public Buildings and Grounds in Washington, D.C., was known for his engineering skills and financial trustworthiness. He developed an ingenious method to balance the foundation as workmen with picks shovels dug from either side in a coordinated effort. Eventually Casey's men replaced half the old foundation, making it 13 feet deeper and over twice as wide. Over 130 years later, after the monument was damaged by an earthquake in 2011, engineers tasked with repairing the structure consulted Casey's original papers to understand how it was built. The engineers called Casey's work "brilliant." Later military service He also was on several boards: to study the effect of a dry dock companies work on Portland Harbour in April 1868, to make torpedo cable contracts and examine systems of torpedo defence from May 26 to October 13, 1873, to advise on the ventilation of the United States House of Representatives March 1877 to March 1881, and February 15, 1884, to September 1886, and to advise on public works in the District of Columbia from 1879 to 1888. Casey supervised the construction of a monument over Thomas Jefferson's grave May 2, 1882, to October 20, 1886, one at Washington's Headquarters in Newburgh, New York from June 7, 1883, to October 20, 1884, and one marking the birthplace of Washington, from October 8, 1883, to Oct. 20, 1886. He was made a full colonel on March 12, 1884. On April 10, 1884, Casey was made a member of the Lighthouse Board. He then oversaw the construction of the Army Medical Museum and Library beginning April 14, 1885 and the erection of the James A. Garfield Monument from July 2, 1885. Both projects concluded on October 20, 1886. Casey was then made president of the Board of Engineers for Fortifications and other Public Works in New York City and a member of the Board of Visitors to the Engineer School of Application, both