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SO OBVIOUS THAT IT CAN BE OVERLOOKED
| 题名： | SO OBVIOUS THAT IT CAN BE OVERLOOKED |
| 正文语种： | eng |
| 作者： | Aaron Barr |
| 摘要： | CLIMATE CHANGE DRIVES extreme weather events, and this has a profound impact on the asphalt that covers 93% of America's paved roads. Asphalt should last anywhere from 15-20 years. But as the climate warms and creates more severe weather, damage to roads will become more commonplace. It's imperative that we examine ways to help maintain road integrity. Utility covers are one of the first places to look. The U.S. Environmental Protection Agency (EPA) estimates that there are 20 million manholes in the country, often as close together as 300 feet on any city street. When cracks and premature road wear develop around utility covers, it's typically a sign there are problems with the utility cover's elevation (be it tilted incorrectly, higher or lower than the roadway surface), resulting in cracks, ruts, bumps and crumbled asphalt. Consider this: in 2017 alone, 47% of manholes were flooded due to intense rainfall, sometimes leading to sewage spills as well as infrastructure damage. Manholes and other utility covers are one area where cities, counties, and other road managers have an opportunity to get ahead of the problem and invest in road sustainability - before a major weather event turns into an emergency road repair operation. |
| 出版年： | 2023 |
| 期刊名称： | Roads & bridges |
| 卷： | 61 |
| 期： | 3 |
| 页码： | 34-37 |
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