We were tasked by the Arkansas Department of Parks to conduct a conditions assessment of historic and heritage sites throughout the state.…  

Established in 1851 following the Mexican-American War, the Armed Forces Retirement Home, Washington, DC (AFRH) is now home to four National Historic…  

The New York Navy Yard (colloquially known as the Brooklyn Navy Yard) has been a fixture on the Wallabout Basin of the…  

The Call Collins House is a neoclassical, three-story residence constructed in the late 1820 or early 1830s. It is listed on the…  

The Historic Congressional Cemetery was established in 1807 in the south- east quadrant of Washington, D. C. To serve as the final…  

The Flag House and Star-Spangled Banner Museum is a complex of three buildings, the earliest of which was the home of Mary…  

We were selected to produce contract drawings and specifications for the exterior rehabilitation of six historic buildings at Fort Belvoir, Virginia, an active…  

Designed in the Beaux Arts style by the Supervising Architect of the Treasury in 1908, this former federal Post Office is a…  

Foreign visitors to The White House often stay at the Blair House, an ensemble of early 19th century brick buildings across Pennsylvania…  

Quarters Six of the Marine Barracks located in Washington, DC is the US Marine Corp’s oldest active post. The location, mid-way between…  

Following a condition assessment survey completed in 2015, we were contracted to investigate areas of deteriorating concrete found on the sand bins…  

Menokin, located near Warsaw, Richmond County, Virginia, was the plantation home of Patriot Francis Lightfoot Lee, a signer of the Declaration of…  

The National Cemetery Administration (NCA), a branch of the Department of Veteran’s Affairs, oversees over 100 national cemeteries throughout the United States.…  

Architect Joseph Evans Sperry constructed Newcomer Hall on the Maryland School for the Blind Campus ca. 1910. He designed a number of…  

Oatlands Plantation, founded in 1798 on 3,408 acres of Virginia soil, is now a house museum and property of the National Trust…  

The Carnes Playhouse was built in 1933 by Arkansas State Representative Grover Carnes for his young daughter, Harriet. The small (12’ x…  

The Main Street Station in Richmond, Virginia is a complex of buildings, originally constructed by the Seabord Air Line and Chesapeake &…  

The US Holocaust Memorial Museum complex consists of a modern exhibition hall (1989-1993) and the Ross Administrative Center (RAC), a brick, limestone…  

The University of Virginia chemical hearth was discovered during a recent renovation of the Rotunda, the original college building designed by Thomas…  

Sailors’ Snug Harbor was founded in 1801 after Captain Robert Richard Randall’s (d. 1801) will specified that his estate be used to…  

At the request of SWCA Environmental Consultants, we performed an on-site condition assessment of “The Orange Show” in Houston, Texas. “The Orange…  

At the request of CITADEL DBD, LLC, we performed analysis of mortar and paint samples collected from Buildings 122 and 173 –…  

The United States Naval Academy Chapel was built between 1904 and 1908 and was designed by Ernest Flagg, the Beaux Arts architect…  

Conservators perform basic characterization of one mortar sample to guide recommendations for suitable replacement materials.  Mortar samples will be subjected to standard…  

The White Island Lighthouse is one of the many historic lighthouses that were built along the Eastern Seaboard to guide shipping away…  

The Winder Building stands as one of Washington, DC’s oldest office buildings. Built in 1848 of brick and steel, just steps from…