Practice Quiz

Civil Engineering PE

Category - Hydrology

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Low Impact Development (LID) is strategy for stormwater management that has been adopted by many cities across the U.S. in recent years. Which of the following statements best describes LID?
  1. LID follows a set of practices used to reduce runoff and pollutant loadings by managing runoff as close to the source as possible
  2. LID practices cannot be used to retrofit existing infrastructure
  3. Although LID practices normally increase the cost of development, the long-term environmental benefit is measureable and justifiable
  4. None of the above
Explanation
Answer: A - LID follows a set of practices used to reduce runoff and pollutant loadings by managing runoff as close to the source as possible. LID techniques and methods can be used to retrofit existing stormwater systems to reduce the volume of runoff and pollutant loadings to affected receiving waters. The integrated natural systems used in LID designs can result an overall cost savings when compared to built infrastructure and the annual operation and maintenance costs of mechanical systems.
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