Drawings: Single-Family and Duplex
The diagrams below illustrate the basic lot grading requirements for all 5 different lot types of single-family and duplex.
Lot Type A
Rear to front surface drainage. (2-3% overall slope)
Lot Type A diagramGrading Details
Lot Type B
Rear to front surface drainage. (3-6% overall slope)
Lot Type B diagramGrading Details
Lot Type C
Rear to front surface drainage. (>6% overall slope)
Lot Type C diagramGrading Details
Lot Type D
Standard split surface drainage. (1.5% overall slope)
Lot Type D diagramGrading Details
Lot Type W
Split surface drainage for walkout basement.
Lot Type W diagramGrading Details
Other Related Requirements
Critical Swale Standards for "Rear to Front" surface drainage
Critical Swale Standards for "Split/Front to Back" surface drainage
Splash Pad which carries roof leader and sump pump discharge away from foundation wall
Downspout which carries surface water from eavestroughs to drainage swales
Typical Side-Lot Landscaping shows landscaping requirements on finish grade level
Lake, Ravine, and Top of Bank Lots shows the cross-section of the requirements
For More Information
Drainage Planning and Engineering
5th Floor, Century Place
9803 - 102A Avenue NW
Edmonton, AB
T5J 3A3
| Telephone | 311 or 780-496-5576 |
|---|---|
| Fax | 780-496-2865 |
| lot.grading@edmonton.ca |
