The painstaking work performed on the Devil's Slide Bridges in Pacifica, Calif., involved building two parallel bridges over an environmentally sensitive area where temporary towers, falsework, equipment and even foot traffic was prohibited. The project involved construction of large-span, cast-in-place concrete bridges connecting a highway across the valley into 4,000-ft-long tunnels that pass through the mountain over a coastal wetland, which is a habitat for the endangered red-legged frog. Devil's Slide is a big landslide that goes thousands of feet above the roadway. Previously, there were no bridges at the location, and the road ran along the coast. "What we're doing is bypassing the road being on the cliffs of the ocean," Kevin Harper, Caltrans senior bridge engineer, told Roads & Bridges. "This will make for a more reliable roadway. Landslides have been occurring for years, and the road had long closures. Lots of commuters get landlocked, which adds hours to their commute."
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机译：在加利福尼亚太平洋地区的魔鬼滑桥上进行的艰苦工作涉及在环境敏感地区建造两座平行桥，禁止临时塔楼，虚假作业，设备甚至人行道。该项目涉及建造大跨度的现浇混凝土桥梁，该桥梁将穿过山谷的高速公路连接到4000英尺长的隧道，这些隧道穿过沿海湿地的高山，那里是濒临灭绝的红脚青蛙的栖息地。 。魔鬼滑道是一个巨大的山体滑坡，在车道上方延伸了数千英尺。以前，该位置没有桥梁，道路沿海岸行驶。 Caltrans高级桥梁工程师Kevin Harper告诉Roads and Bridges：“我们正在做的事情是绕过悬崖峭壁。 “这将使道路更加可靠。滑坡已经发生了多年，而且道路封闭时间很长。许多通勤者陷入内陆，这增加了他们的通勤时间。”
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