Ziger|Snead was responsible for the restoration of Maryland’s 18th Century State House Dome. The structure is of landmark status, and is noted for serving as the seat of government for the Continental Congress from 1783 to 1784, and for being the oldest state capitol still in continuous legislative use. In the Senate Chamber on December 23, 1783, George Washington resigned his commission as Commander-In-Chief. On January 14, 1784, in the same room, the Treaty of Paris was ratified, establishing the United States as an independent nation.

Ziger|Snead began its involvement with the State House with a concentrated, investigative report of significant elements of the dome, which required immediate repair. The firm continued this effort with detailed construction documents and construction administration.