Tag Archives: historic districts

The Evolution of Open Space

Photo by Charles Birnbaum courtesy The Cultural Landscape Foundation.

Photo by Charles Birnbaum courtesy The Cultural Landscape Foundation.

Public open spaces, especially urban open spaces, are coming into their own recognition as historic resources. They are receiving more attention because well-designed outdoor landscapes reflect our values as individuals and as a society. Though the way we use these spaces may shift over time, the designs still reveal our collective aspirations for our relationships with nature, the built environment, and with each other.

Two parkscapes in Portland are particularly good at showing us the values and aspirations of their era, and it is worth remembering the design concepts, and remembering how our interaction with the parkscapes has changed over time. These landscapes are the Washington Park Reservoirs, completed in 1894; and the SW Portland sequence of places anchored by Keller** and Lovejoy Fountains, completed in 1966-70.

historic-WPR-pmapdxWashington Park Reservoirs is a historic district listed on the National Register of Historic Places. It was developed to store and distribute clean drinking water, but it had another important function which drove its design: it was a recreational destination for a growing urban population. At the end of the 19th Century, the City Beautiful movement across American cities inspired planners and politicians to create parks as refuges from urban life. Parks were seen as restorative, where citizens could breathe fresh air, stroll along paths or promenades, and view natural plants, lakes, and garden vistas. Many of our most famous American parks were developed during the City Beautiful era, including Central Park in New York City.

Washington Park and the Reservoirs were directly served by public transportation (the Portland cable car) and offered panoramic views east over the City towards the Cascade Mountains. The Reservoirs served as reflective focal points in a landscape designed to look completely natural, yet evoke romantic memories of western European aqueducts and fortresses.

By the 1930s, civic open spaces and the development of public parks had become unaffordable for most municipalities, and also had become less valued by Americans who were increasingly moving out of the cities and into suburban developments. Existing parks were generally not well maintained, and crime and vandalism created more abandonment by well-off city dwellers. By Mid-century, though, a new type of open space was being developed in many American cities. Under urban renewal programs, cities razed perceived decrepit, crowded, and crime-ridden neighborhoods and replaced them with open, clear, utopian style developments.

Portland Open Space courtesy TCLF

Portland Open Space courtesy TCLF

One of the largest and most successful Modern-era urban renewal projects in Oregon includes a series of public parks, walkways, fountains, and plazas designed by landscape architect Lawrence Halprin, known as the Halprin Open Space Sequence. The project, at the south end of downtown Portland, was listed on the National Register of Historic Places in 2013. The Halprin nomination quotes from J. William Thompson, editor of Landscape Architecture magazine, comparing Frederick Law Olmsted Sr. (the progenitor of the City Beautiful movement) to Lawrence Halprin: “For Olmsted, the vision was one of pastoral relief from smoke and crowding; for Halprin, one of celebration of the city’s rambunctious vitality. Both viewed city parks and open spaces as a meeting ground for people of all classes.”

How much has our use of these two open spaces changed over time? We still get out of the house to walk in a park, possibly more than we did 50 years ago or 120 years ago. We have more leisure time, many of us own pets that need exercise, and people stay active longer than they used to. There have been societal changes that work against the popularity of local parks, including the ease of automobile transportation (pulling people further afield), the proliferation of other ways we can spend our leisure time, and the rise in obesity; but in general we use and care for our shared local parks and open spaces. However, there are changes in our relationships with these two specific open spaces that illuminate deeper trends in our society. One of the most complex relationship is the trend towards an increased mistrust of government.

WA Park Reservoirs 130329 011The Washington Park Reservoir area shows the most profound shift in use over time. The need to cover and further protect drinking water in underground storage contains in lieu of open Reservoirs reflects a growing national divide between government and the public made visible by current limited access to a once prominent bucolic public destination. Perhaps a certain level of distrust is to be expected from decisions affecting public safety, but the potential loss of the Reservoirs as a contemplative, experiential destination is in stark contrast to the one of original design intent. Part of the current limited access results from the explosion in liability, where government agencies can and will be found at fault for any harm that might befall a park user or a water consumer. Federal regulations requiring municipal drinking water to be covered also feed our collective sense that there are malicious people among us.

The City of Portland is boldly attempting to both comply with the federal ruling to cover our drinking water reservoirs and restore the original city beautiful interaction with the park. In so doing, the City will eliminate the biggest concern with the liability and safety of our drinking water and the restorative design will re-imagine the Reservoirs, not as a highly urban, interactive series of features like the Halprin Sequence, but as a tranquil, even romantic, natural setting for the public to once again walk through and enjoy a natural beautiful city.

Lovejoy-Pavillion-preservation-pmapdxAmazingly, the Halprin Open Space Sequence continues to survive the “age of liability” with its wonderful interactive fountains, plazas, and pools intact. Nothing this fun- and potentially hazardous- will likely be constructed again as a public project. The design reminds us that we must be responsible for protecting this level of freedom, and that this very public- and yes, democratic- open space, is uniquely valuable as a symbol of public trust.

Written by Kristen Minor, Preservation Planner

Preserving the Modern in St. Louis

St. Louis, MO is home to several architectural gems from the mid-century modern era. The city recently conducted a property survey of over 2,000 non-residential buildings constructed between 1945 and 1970. The Cultural Resource Office of St. Louis is highlighting a selective survey & inventory of 200 significant properties with input from PMA and the public to help develope a master list of 25 of the most significant mid-century modern masterpieces. Surveying these architecturally significant structures gives a voice to a past era that still directly influences today. St. Louis’s built heritage from the mid-century modern era showcases structures from internationally recognized architects that revolutionized architecture and design throughout the 20th century.

A Legacy of Modern Architectural Design
The post-World War II era in the United States led to the development of the Modern Movement Architecture across urban areas. Contributing factors of this development included the impact of the auto industry on the built environment, a more cost-conscious public and government, and several technological advances. In addition to these factors, St. Louis was home to the prestigious school of architecture at Washington University. The school had diverse and international students and teachers that contributed to some of the most prolific designs of modern architecture.

When discussing St. Louis mid-century modern architectural design three architects stand out: W.A. Sarmiento, Gyo Obata, and Minoru Yamasaki. Their designs were sleek, yet whimsical, and made St. Louis globally recognized for its modern architectural designs.

W.A. Sarmiento design

W.A. Sarmiento design

W.A. Sarmiento is an internationally regarded architect who designed some of the most prolific buildings in the city of St. Louis. A native of Peru, Sarmiento began as a draftsman for Oscar Niemeyer. In 1952 he accepted a position with the Bank Building & Equipment Corporation. From 1952 through 1964, Sarmiento revolutionized the design and function of banking facilities. Ten years after working for the Bank Building & Equipment Corporation, Sarmiento left after J.B. Gander’s death and formed his own company. W.A. Sarmiento Architects expanded to included offices in St. Louis, Phoenix, and San Francisco. Sarmiento closed his practice in 1978 and left behind a legacy of modern architectural design including the saved American Automobile Association (AAA) Building (1976), the Chancery of the Archdiocese of St. Louis (1962), and the Jefferson Bank and Trust Building (1955).

St. Louis Science Center James S. McDonnell Planetarium (1963

St. Louis Science Center James S. McDonnell Planetarium (1963


The St. Louis Science Center James S. McDonnell Planetarium (1963), was designed by the local firm of Hellmuth, Obata, & Kassabaum (HOK), with Obata as lead designer. HOK was founded in 1955, and to this day is a global leader in architectural design. The practice began by designing schools in suburbs of St. Louis, and by the 1960s it a grown and began to open offices nationally, with their first international branch opening in 1984. Obata was the lead designer of the Saint Louis Science Center along with other notable St. Louis buildings. The building has a visually striking and expressive shape, somewhat reminiscent of a nuclear power plant tower. It is a thin concrete shell structure, hyperboloid in section. This architectural design is a premiere example of continuous contemporary design.
Lambert International Airport

Lambert International Airport


Minoru Yamasaki’s domed design for Lambert’s main terminal became the forerunner of modern terminal building plans. In 1951, the firm of Hellmuth, Yamasaki, and Leinweber was commissioned to design and update the Lambert- St. Louis Municipal Airport. In 1956, their design was the first building in St. Louis to receive a National AIA Honor award. This building was originally composed of three vaults, with a forth added in 1965. Yamasaki’s design became a model for a new generation of airport terminals. Eero Saarinen’s designs for the TWA terminal at John F. Kennedy Airport in New York, and the Dulles Washington Airport terminal both echo the repetitive concrete vaults of Lambert St. Louis Municipal Airport.

STL MODERN logo PMAPDXFor more information about this exciting project, including a list of buildings for intensive research, mid-century modern properties, city map with property locations, and property descriptions. Visit: Mid-Century Modern Survey










Written by Kate Kearney, Marketing Coordinator

Historic Preservation and New Construction in Historic Districts

Historic Districts are not frozen in time.
Ideally, Districts are busy, vital places where people live, work, socialize, and see community values reflected. Typically, buildings contribute to a district and share common characteristics becoming more historically valuable as a group than as individual properties. If we create, restore, and invest in Historic Districts, the Districts will continue to tell a story about a particular time period, a particular community, or perhaps a particular industry. So is new construction appropriate within a Historic District, and if so, how does one properly design and integrate the new building within the existing historic context? This posting will explore some factors and opinions on new construction in Historic Districts.
PMAPDX OSU Buildable Landarea
Some individuals argue that appropriate infill must be visually identical to nearby historic resources. Most architects in practice today have a condescending reaction against recreating previous styles as making “faux” or “Disneyland” architecture, even though western architecture for hundreds of years has recycled various stylistic revivals. It is not an absurd concept to design and build beautiful, high-quality buildings that reflect an older style and method of construction. Other individuals have no trouble placing a contemporary structure next to older structures, since modern buildings have a responsibility to reflect our shared culture and lifestyle.

Neither of these absolutes works for most situations. New buildings, as stated in the Secretary of the Interior Standards, do need to be “differentiated” from contributing buildings in a District to avoid a false sense of history. The question is how much differentiation is required? Though there are cases where a “missing tooth” in a very cohesive pattern of buildings should be constructed to resemble its historic neighbors, in other cases the visual diversity of architectural styles and periods within a District allows for more flexibility in differentiating new buildings. Historic Districts are listed on the National Register because they possess a concentration of buildings that are linked either historically, aesthetically, or both. One Historic District might represent a fairly large span of time, various architectural types and styles, and a number of different uses. Another District might be much more specific in its focus.

Opsis Architecture for OSU

Opsis Architecture for OSU


As Preservationists and Architects, we need to analyze the characteristics and contexts that are the same and the characteristics and contexts that are different about the resources within the District. Each case is unique and site-dependent. It is possible to allow for stylistic additions and change without showcasing the change; to temper the inclination to design an individually iconic building; and to limit a modern “intrusion” so as to respect and highlight the older buildings. Good design, high-quality detailing, and high quality materials contribute towards compatibility, and adaptive reuse and change is inevitable to the vitality of a Historic District.

Each jurisdiction having authority makes its own interpretation of what it means to be compatible. One recent example is an approval by the Historic Resources Commission (HRC) in Corvallis, Oregon. The Corvallis HRC approved a design for a freestanding metal and glass canopy in the heart of the national registered Oregon State University Historic District. The HRC concluded that there was no historic precedent for a freestanding non-building element, but found that the canopy was visually light and well-designed and fit into the open space pattern of development without detracting from the neighboring Contributing resources. The role of the historic consultant in this case was to construct an argument as to why the canopy was compatible in the District, and push back against earlier suggestions that the canopy become more “building-like” with masonry columns. An open structure with a veneer of building material would have created a less compatible design.

Opsis Architecture Canopy design for OSU

Opsis Architecture Canopy design for OSU


Each proposal for new construction in a Historic District should be informed by its context. There is latitude for new construction to be distinct, as long as the new work does not detract from the surrounding historic resources.


Written by Kristen Minor, Preservation Planner