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Beautiful, board-formed curvy concrete in the exhaust system of the 1928 Posey Tube of Alameda / Oakland, California. It was the first tunnel for road traffic built using the immersed tube technique. The 4,436-foot-long tunnel was the first precast concrete tube, and was cast at Hunter Point by California Bridge & Tunnel Company. Each approach to the tunnel is buffeted by Art Deco ventilation buildings designed by architect Henry H. Meyers, which house the massive fans.
Unlike earlier tunnels, which were ventilated in one direction with fresh air coming in one end and vehicle exhaust out the other, the Posey Tube was one of the earliest to use two fan systems, one for exhaust, which was channeled above the vehicles through an elaborate system of louvers and board formed concrete desgned in intracate curves; the other fan system provided fresh air through the floor of the tunnel.
One piece of interesting trivia about the Posey Tube: A pair of canaries were used during construction as living air monitors; although one canary died during construction, it was an accident caused by being penned up with a pet cat and not a toxic atmosphere.
In 2016, the towers were completely rehabilitated and a new security system was added, making the tunnels no longer accessible to illicit explorers looking to photograph the hidden passageways and nooks of the system. We took our last photos here in late 2014.
The Los Angeles Public Library was designed by Bertram Grosvenor Goodhue and opened in 1926. It's in an Egyptian Revival style with sphinxes, snakes, mosaics, and of course the pyramid on top of the building. There is a huge globe chandelier in the dome under the pyramid. The Central Library was heavily damaged in 1986 due to an arson fire. It was restored and expanded by Norman Pfeiffer, and reopened to the public in 1993.
The Los Angeles Public Library is on the National Register #70000136 and probably should also be a National Historic Landmark.
Big #constructionequipment arrived on site today... Just another day in #paradise. The second #boardformed #bunker is underway. This is #concrete poured with real #aloha!
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vikkikath: Boys and their toys! 😉
andersonandersonarchitecture: Gennifer is in charge of this project and the boys do exactly as they're told, Vikki
Williamson Hall
BWBR, architects
1977
This earth sheltered admin building was placed largely under bround in an effort to minimize energy usage. It originally had solar collectors on its roof.