DPD permit applicants with small construction projects must
submit a plan showing the erosion control measures they will
be using, starting January 1, 2003.
To assist in meeting this requirement, DPD is offering a new
prescriptive plansheet called a Temporary Erosion and Sedimentation
Control (TESC) Standard Plan (aka the "Construction Stormwater
Control Prescriptive Plansheet"), which is available at
This helpful 24"x36" plansheet provides a quick way
for the builder to document erosion control methods and a clear
field guide for both builder and inspector. It contains illustrations
of common construction erosion control methods for the builder
to select from and can be easily incorporated with building
* Applicants retain the option of having plans developed
by a licensed civil engineer.
What is a Small Project?
Small projects are defined in Seattles Stormwater,
Grading and Drainage Control Code (SGDC) as projects with
less than 5,000 square feet of new or replaced impervious surface
or less than one acre of land disturbing activity. The SGDC
requires plans to show proposed construction erosion control
unless an alternative checklist has been approved. The new plansheet
was developed after the checklist currently in use was found
to be unsuccessful in documenting approved erosion methods,
particularly in the field.
Also in the News: Erosion Control Inspection Now Required
at First Ground Disturbance
While erosion control measures have been required for most projects
in Seattle that involve ground disturbance since January 31,
2000, an erosion control inspection is now required when the
first ground disturbance occurs (see related news
Control Prescriptive Plansheets
The Temporary Erosion and Sedimentation Control
(TESC) Standard Plan (aka, the "Construction
Stormwater Control Prescriptive Plansheet")
is available in three formats:
Autocad file - full size, 24"x36"
file - full size, 24"x36" (1.6MB)
file - half size, 12"x18" (1.3MB)
Full-size printed copies are available from the
DPD Public Resource
Center, located on the 20th floor of Seattle Municipal Tower
at 700 Fifth Ave., (206) 684-8467.
If you have questions about the new prescriptive
plansheet, please contact:
Sherell Ehlers, DPD
Site Development Supervisor