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Posts Tagged ‘granite’

BY ZACH MORTICE

Vitrified brick in Cincinnati. Image courtesy Robin Williams.

Uncovering historic pavements reveals each city’s “urban fingerprint.”

In the past 200 years, cities have become larger, safer, and healthier places to live, but there’s one arena of urban infrastructure that has become incalculably more monotonous and denuded: the range and diversity of pavement types on city streets and sidewalks.

Before the dominance of concrete and asphalt, city streets were paved in a wild diversity of minerals and materials: glassy vitrified brick, wooden block, crushed oyster shells, rough-hewn granite blocks, and more.

Robin Williams, the chair of architectural history at the Savannah College of Art and Design, has traveled to 40 cities across North America to study their historic pavements and found a rich spectrum of street coverings that somehow persist with no preservation protections. (more…)

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BY CAROL E. BECKER

An Australian town decides what to do with a spent quarry.

FROM THE JULY 2018 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

Hornsby Quarry is like many quarries that roared with life in the 19th and 20th centuries and then suddenly fell silent because their resources were tapped out or became too expensive to extract. It is deserted today. The quarry, in Hornsby, New South Wales, Australia, has for a generation remained “the big hole in the ground”—300 meters roughly square, 100 meters to the bottom—and a major safety hazard that Hornsby Shire was forced to buy at the market rate of AU$25 million (about $16 million U.S.) after CSR Limited, a private company, ceased extracting hard rock basalt for road base material and gravel in 2001.

The Hornsby Shire Council acquired the quarry in 2002. Because it was built before reclamation laws and it was zoned as Local Public Recreation Land (technically called Open Space A) by the New South Wales Environmental Planning Act in 1994, CSR had no obligation to mitigate the site before ceasing operations, and the Shire was required by state legislation to buy it back. The huge cost of the land, set by the solicitor general, was ultimately reduced in court by AU$9 million, but the final price still cost each rate-holder (taxpayer) approximately $50 per year, for a total of 10 years, says Kurt Henkel, a landscape coordinator at Hornsby Shire.

The quarry will not remain dormant, however. Its stories—physical, historical, geographical—parallel the long development of Australia and are about to get a bold retelling. The vision for Hornsby Quarry (more…)

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