The Center for Architectural Conservation

Site Projects by Date

2018-Present

Pecos National Historical Park, Pecos, MN

Pecos National Historical Park is quite complex, consisting of multiple historic and cultural features which include Native American ruins, an 18th century catholic church, the western most battle field of the Civil War, and a historic ranch which was once the home of the movie star Greer Garson. The largest feature, the mission, was constructed of adobe, a historic material used extensively in the arid climate of the American Southwest, but which has fallen into disfavor in recent decades for a variety of reasons including building code, lack of skilled labor, and cost of construction. This project attempts to identify and describe the modes and mechanisms of deterioration of traditional structures and standing architecture and damage thresholds within the mission and convento of Pecos National Historical Park. Vulnerabilities based on factors such as composition, construction, orientation, exposure, past treatment, and maintenance are the primary focus.

2017

Quarters 5 and 6, Mesa Verde National Park, Cortez, CO

Mesa Verde’s Administrative Loop is comprised of 15 buildings, including a sub-group of eight residence quarters located on a service road on the western side of the Spruce Tree House Loop. Two of these structures, Quarters 5 (Q5) and Quarters 6 (Q6), were built in the traditional Pueblo Revival style and are within 50 feet of each other, however, they were not constructed at the same time. Q5 was built in 1926 being part of the original building campaign initiated by park superintendent Jesse Nusbaum and his wife Aileen. The sixth residence, Q6, was erected by members of the Civil Conservation Corp during the CCC years from 1932 to 1942. These building were the first buildings in the park system to reflect the cultural heritage of a region; a concept that would later become a standard approach for the entire National Park Service.The significance of all of these residential structures, as well as their landscape, cannot be overstated as they are an integral part of Nusbaum’s original vision for the park as a whole, which was based on the research that he and his wife did on the architecture and building techniques of the Pueblo peoples of Arizona and New Mexico.


2016

Tiffany Mosaic, Woodlawn Cemetery, Bronx, NY

2015

Mancos Free Press, Mancos, CO

2012

Hovenweep National Monument, Montezuma Creek, UT

Hovenweep National Monument is located in the Four Corners region in a very remote series of canyons on Cajon Mesa. With sweeping horizons and open skies, the large concentrations of freestanding masonry towers are the only interruptions in the southwestern landscape. Holly Tower was constructed around 1200 AD atop a large detached sandstone ledgerock in the center of a deep canyon. It is often considered the most impressive of the Hovenweep structures and one of the best preserved. While the towers have been subjected to multiple stabilization campaigns since the creation of the National Monument in 1923, the condition of the Holly Tower support rock has been largely ignored in previous surveys. Today the support rock’s accelerated erosion threatens the foundation of the tower above, prompting an in-depth study of its decay and treatment.


2010

NAWS, Grand Canyon and Rocky Mountain National Parks

Disaster preparation, response, and recovery characterize the methodology that has come to define the protection of heritage sites from natural and human disasters. Events such as earthquakes, wild land fire, flood, hurricanes, and war are understood as threats or indications of impending danger. Despite the knowledge that disasters present a real threat to many cultural resources, efforts to prevent or mitigate damage, and reduce risk, even if enacted in advance, are often unpredictable in their short- and long-term efficacy. Recent trends in heritage conservation have focused on risk, danger, and threat as a means to draw attention to the neediest monuments and sites. This has proven to be especially significant in the growing concern about the effects of climate change and extreme weather such as drought on cultural resources. This project, developed by the University of Pennsylvania’s Center for Architectural Conservation, and initiated by the Intermountain Region Archaeology Program through the Colorado Plateau Cooperative Ecosystem Studies Unit, developed a recording methodology for a risk assessment plan for selected Native American wooden structures at Rocky Mountain National Park and Grand Canyon National Park. The UPenn team sought to develop a system that established predictable indicators of risk that, when applied to each structure, could suggest which sites might be under threat of collapse.

2009

Durham Castle, Durham England

2009

2009

2008

Wagner Institute, Philadelphia, PA

Whitney Studio, New York, NY

Mt. Edgcumbe, Cornwall, England

2008

2007

2007

Sprucetree House, Mesa Verde, Cortez, CO

Southampton Burial Ground, Southampton, NY

El Morro, Ramah, NM

2004 and 2007

Merchants Exchange, Philadelphia, PA

William Strickland’s Philadelphia Merchants’ Exchange Building in Independence National Historical Park is notable for its innovative architectural design including colossal order colonnades with fluted shafts of Pennsylvania marble surmounted by Italian Carrara marble capitals of the Composite order. Ornately carved and signed by their Italian craftsmen, the capitals represent some of the most exceptionally sculpted architectural elements in Philadelphia and the country.

2007

2007

2007

2007

2007

2007

2006

2006

2006

2005

2005

2005

2004

2004


Mt. Edgcumbe, Cornwall, England

New York State Pavilion, Queens, NY

San Antonio Missions, San Antonio, TX

Trinity Cathedral, Pittsburgh, PA

Wagner Institute, Philadelphia, PA

Deschler Morris House, Germantown, PA

Longhouse, Mesa Verde, Cortez, CO

Rosario Chapel, San Juan, Puerto Rico

Strawberry Hill, Twickenham, ENgland

Chiripa-Bolivia

Longhouse, Mesa Verde, Cortez, CO

Strawberry Hill, Twickenham, England

Burial Ground, Southampton, NY

Frijoles Canyon, Bandelier NM, Los Alamos, NM


2004

2003

2003

2003

2003

Victoria Mansion, Portland, ME

Orto Botanico, Rome, Italy

San Juan Forts Grafitti, San Juan Puerto Rico

Sprucetree House, Mesa Verde, Cortez, CO

Tiwanaku, Bolivia

2002

2002

2001

2001

2001

2000

2000

2000

2000

1999

1999

1999

Capilla Del Santa Cristo, San Juan, Puerto Rico

Orto Botanico, Rome, Italy

Bandelier, Los Alamos NM

Civilian Conservation Corps Buildings

Indian Key, Islamorada, FL

Cliff Palace, Mesa Verde, Cortez CO

Indian Key, Islamorada FL

St Louis 1, New Orleans LA

Trinity Cathedral, Pittsburgh PA

Ayyubid City Wall, Cairo Egypt

Casa Grande, Coolidge, AZ

Catalhoyuk, Turkey

Cliff Palace, Mesa Verde, Cortez CO

1998

1998

1998

1998

1998

1997-1998

1998

1997

1997

1997

1997

1997

1996

1994 and 1996

1994 and 1996

1995

1995

1995

1993 and 1995

1995

1995

1995

1994

1993

1993

1993

1993

1992

1991

1991

1991

1990

1990

1990

1990

Casa Grande, Coolidge AZ

Catalhoyuk, Turkey

Chief Tomokie Monument,Tomoka State Park, Daytona Beach FL

Cliff Palace, Mesa Verde, Cortez CO

Coronado State Monument, Albuquerque NM

HABS-Historic American Building Survey

Tsankawi, Bandelier, Los Alamos NM

Casa Grande, Coolidge AZ

Catalhoyuk, Turkey

El Morro, Ramah NM

San Antonio Missions, San Antonio TX

Tsankawi, Bandelier, Los Alamos NM

Adobe Ruins Monitoring, Mesa Verde, Cortez CO

El Morro, Ramah, NM

Mug House, Mesa Verde, Cortez CO

Belmont Mansion, Philadelphia, PA

Casa Grande, Coolidge, AZ

Fort Brockhurst, Gosport, England

Mission San Juan Capistrano, San Juan Capistrano, CA

Mug House, Mesa Verde, Cortez, CO

National Historic Landmarks Database

Second Bank of the United States, Philadelphia, PA

Convent Plaster

Convent Column San Antonio, TX

El Morro, Ramah NM

Ferrara Italy

Ruins/Finishes stabilization

Guggenheim Museum, New York NY

Brooklyn Historical Society, Brooklyn NY

Drayton Hall, Charleston SC

Protestant Cemetery, Rome Italy

Castello Sermonetta, Italy

Center Church Burial Ground, New Haven, CT

Ohio State House, Columbus, OH

Trinity Cathedral, Pittsburgh, PA