Highway and transportation design criteria issue

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1. In the civil engineering practice of structural and transportation engineering, design decisions are usually influenced by building codes and American Association of State Highway and Transportation design criteria. What is the primary influence on design decisions made by environmental engineers?

2. During which decade were virtually all of the United States federal laws pertaining to the environment enacted?

3. The following list includes all of the types of laws and regulations that govern environmental matters in the United States, List them in their hierarchy from highest to lowest.

State laws                              State regulations
U.S Constitution                       Federal laws
Federal regulations                      Treaties

4. A sample is to be analyzed for solids,

25 ml of the sample is placed in a drying dish and dried overnight at 105°C. The weight of the empty dish is 13.1066 g. The weight of the dish after drying is 13.1108 g. What is the total solids concentration in the sample in mg/1?

Reference no: EM13769766

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