在胡佛水坝旁路被描述为一个显着的，壮丽，令人印象深刻的，精彩，巨大的工程技艺。已完成2010年10月，这$ 240万土木工程项目采取了周密的计划和准备了近十年的时间，要求6个机构管理协会之间协调努力，由一个三脚注重设计，安全性和经济方面的考虑。
土木工程师设计它们，景观设计师勉强他们，开发商想知道为什么我们需要他们和市政工程师往往需要他们 - 我恨他们。保留和拘留池塘已经成为雨水管理标准在整个美国大部分的商业和住宅项目。他们原本打算用于防洪，后来并入水质的要求也是如此。他们服务于他们的能力减弱峰新开发流还算不错，但其效用停在那里。这里有几个原因，我不是拘留/储水池的粉丝：
I have been advocating for and designing green infrastructure and LID solutions for a number of years now. In those years one of the most common things I hear is "So what's it going to cost me?". The assumption is always that it's going to cost more, and often they expect it to cost a lot more. Fortunately, its often less expensive rather than more expensive. This is especially the case with civil engineering (stormwater infrastructure, grading, parking lots, landscape design, etc.). Clients are naturally incredulous when I tell them that it's going to cost less, so their next statement is usually " Really!?, how much less?". In answering that question I have found that "well, that depends", doesn't always fly, so I have put together some general cost comparisons for several green vs traditional design elements. The American Society of Civil Engineers (ASCE) includes Levees on its 2009 Report Card for America's Infrastructure, giving them a D–. The category of "Levees" covers major flood control works. However, what about the water that causes the flooding that levees protect against? Throughout drainage basins comprising thousands of square miles, stormwater runoff makes its way downstream. Obviously some systems convey that stormwater and even control it. ASCE says nothing about these storm sewer systems, but they form a vital part of America's infrastructure. Buffalo Township’s wastewater treatment plant is located along Buffalo Creek in Pennsylvania, beneath the State Route 28 bridge. This type of wastewater treatment plant is perfect to serve smaller communities. It supports 6,000 people with 3,100 sewer connections to homes and businesses throughout Sarver, Pennsylvania, and the vicinity. It’s an excellent example of an efficient wastewater infrastructure that uses extended aeration to treat raw sewage, without any initial sedimentation. 扎克肯特为模块化湿地在Oceanside，加利福尼亚雨水工程师。We learned about Modular Wetlands’ urban wetland unit in our case study, “Water Quality Retrofit and Retaining Wall Remediation.” We've partnered with Kent to provide a perspective on some dynamics within the stormwater management industry over the last decade, including new processes and technologies designed to meet higher regulatory standards. The City of Takoma Park, Maryland, needed to replace a failing retaining wall that supports a roadway in a small residential development. The Linden Avenue site is directly adjacent to Sligo Creek, which is a tributary of Anacostia Creek, a river undergoing a significant restoration effort. T. E. Scott & Associates, Inc., designed a replacement for the failing retaining wall infrastructure, created a pocket park for the local residents, and provided water quality treatment for the unmanaged watershed. This combination of aesthetic and environmental improvements adds value to the project. We’ll look at some stormwater flow design calculations, a storm water flow splitter, an urban modular wetland unit, a step/plunge pool, and an interesting retaining wall design. The American Society of Civil Engineers (ASCE) assigned the United States’ ENERGY infrastructure a grade of “D+” on their 2009 Report Card for America’s Infrastructure. Electricity generation is the first of three installments on energy and covers nuclear, coal and natural gas, and hydro-electric power generating facilities. Electrical transmission and distribution will be covered in installments two and three as we follow the path of electricity from a power generating facility to your home or business. The goal is to provide an overview on how electrical power is delivered, including issues of current concern. 在各种博客我跟着送我的通讯，以及一个关于条新的智能桥接技术，引起了我的注意，上周五。“智能桥”可能是更好的标记为说话桥 - 一个传达其状态那些谁是侦听后续的解释。临界应变，挠度，和腐蚀条件的基线测量可以用以下结构项目完成来建立，然后在整个电桥的使用寿命监测。
废水系统是我们美国基础设施系列的第6个主题。美国土木工程师协会(第3期)分配美国废水强劲< > < / >强基础设施级的“<强> D - < / >强”的< a href = " http://www.infrastructurereportcard.org/fact-sheet/wastewater " target = "平等" > < em > 2009年成绩单对美国的基础设施< / em > < / >。在这里，我们探讨了资金问题，影响老化的处理工厂和水道，构成了我们国家的废水基础设施。< / p > < / div >
< / div > < div class = " K2FeedIntroText " > < p >美国土木工程师协会(第3期)分配美国危险废物强劲< > < / >强基础设施级的“<强> D < / >强”的< a href = " http://www.infrastructurereportcard.org/fact-sheet/hazardous-waste " target = "平等" > < em > 2009年成绩单对美国的基础设施< / em > < / >。为什么?网站太多，没有得到足够的关注，资金减少等等。< / p > < / div >
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瓦它对你重要吗?输电< / > < / em >,美国土木工程师学会(第3期)分配美国的< >强能源< / >强基础设施级的“<强> D + < / >强”的< a href = " http://www.infrastructurereportcard.org/fact-sheet/energy " target = " _self”> < em > 2009年成绩单对美国的基础设施< / em > < / >。“电力分配”解释了电力从发电设施到你的家庭或企业的最后一步。它涵盖了电力事业的商业模式，配电基础设施如何驱动发电和传输决策，以及计量电力。< / p > < / div >
瓦它对你重要吗?发电< / em > < / >,美国土木工程师学会(第3期)分配美国的< >强能源< / >强基础设施级的“<强> D + < / >强”的< a href = " http://www.infrastructurereportcard.org/fact-sheet/energy " target = "平等" > < em > 2009年成绩单对美国的基础设施< / em > < / >。电力传输是能源三部分中的第二部分，包括输电线路和电网、“绿色”电力传输和“智能”电网。电力分配将在第三部分中涵盖，我们将沿着从发电设施到您的家庭或企业的电力路径进行。< / p > < / div >
The Cost and Reliability of Electricity Service
