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Taking down a trampoline

机译:取下蹦床

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摘要

Several of the trees entrenched in the landscape covered by District 2 of the Pennsylvania Department of Transportation (PennDOT) are marked to become a piece of expensive furniture. You can't find better cherry, maple or oak wood anywhere else in the U.S. Unfortunately the roads which service the coffee tables and couches of the future have been keeping PennDOT officials on the edge of their state-issued seats for years now. Many of the district routes started out as gravel roads decades ago, and have been paved over many times. The problem starts at the base, which in many cases was never fully stabilized and succumbs to the negative effect of the glacial till in the area every fall and spring.
机译:宾夕法尼亚州交通运输署(PennDOT)2区覆盖的景观中树立的几棵树被标记为一件昂贵的家具。在美国其他任何地方都找不到更好的樱桃木,枫木或栎木。不幸的是,服务未来的咖啡桌和沙发的道路已经使PennDOT官员们多年来一直处于政府签发的席位边缘。许多地区路线始于数十年前的碎石路,并且已经铺设了许多次。问题始于基础,在许多情况下,基础从来没有完全稳定下来,并且在每年秋天和春季都屈服于冰川直到该地区的负面影响。

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  • 来源
    《Roads & bridges》 |2015年第2期|20-22|共3页
  • 作者

    Bill Wilson;

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