What is the drainage easement across my property? Can I build on it? What can I do on it?

Easements provide the Public Works Department and Flood Control District with land rights for construction, reconstruction, maintaining and accessing its drainage facilities and for other related purposes. Some access easements are not used regularly but must be kept clear for potential future use. An easement allows the property owner use of the property as long as it does not interfere with easement rights.

No permanent structures or encroachments will be permitted or constructed within or over any drainage easement. This includes, but is not limited to:

-  fill slopes
-  retaining walls
-  fencing
-  sheds
-  landscaping

Any such obstructions will be removed as necessary for maintenance and access purposes and will not be repaired or replaced (Title 0; 914-14.010).

Show All Answers

1. How do I calculate the Flood Control flow data point? Do I need to know the post development design flows for my project?
2. How do I determine the 25-year 24-hour storm depth
3. What are Pollutants of Concern (POCs)?
4. What are Stormwater Best Management Practices (BMPs)?
5. What is a Watershed?
6. What is an illicit discharge and who do I call to report it?
7. What is an NOI and what permits does it cover?
8. What is C.3?
9. What is NPDES and who oversees it?
10. What is the design storm for my project?
11. What is the difference between a Stormwater Pollution Prevention Plan (SWPPP) and a Stormwater Control Plan (SWCP)?
12. What is the difference between point source and non-point source?
13. What is the difference between the County Watershed Program and the Contra Costa Clean Water Program?
14. What is the difference between the storm drain system and the sanitary sewer?
15. What is the drainage easement across my property? Can I build on it? What can I do on it?
16. Who do I contact if I have flooding on my street?