What does impervious mean?

Impervious is defined as a surface that does not absorb water. Several examples of impervious areas include:

  • asphalt or concrete pavement
  • parking lots
  • driveways
  • sidewalks; and 
  • buildings

Show All Answers

1. What are the City's drainage related responsibilities?
2. What are the resident's drainage related responsibilities?
3. What is the difference between public and private drainage systems?
4. My neighbor has done some work on their lot and now I'm getting more runoff. What can I do?
5. What can I do if there is a significant drainage issue in my neighborhood?
6. Who do I contact for my drainage question that isn't listed here?
7. Is street flooding normal?
8. What is stormwater?
9. What is a flood plain?
10. What is the difference between a storm drain and a sewer?
11. What does impervious mean?
12. What is the difference between detention and retention?