 Erosion
Prevention & Sediment Control
Plan ahead when working on property near the lake or anywhere in the
Devils Lake watershed. Avoid the rainy season for any major earth moving
projects.
Lincoln City erosion control ordinances are online at www.amlegal.com/lincoln_city_or.
Lincoln County erosion
control ordinances 3.100 through 3.195 are online at www.co.lincoln.or.us.
Contact
Lincoln City Public Works' Todd Pote 541-996-2154 and
Lincoln County's Maria Wagoner at
541-265-4192 in Newport.
An Intergovernmental Agreement for Administration of Grading and
Erosion Control Services exists between Lincoln City and Lincoln
County. The City of Lincoln City Public Works Department sells a manual
for $15.00 - Grading and Erosion Control Ordinance, Erosion
Prevention and Sedimentation Control Practices,
Technical Guidance Manual. For
property in the county on the east side of the lake, the city handles
residential property and the county handles larger developments. Report
problems to the
• Devils Lake Water Improvement District (DLWID) 994-5330
• Lincoln City Public Works (Todd Pote) 996-2154
• Lincoln County Public Works (Maria Wagener) 265-5747
• For a complaint or concern for properties east of the lake that fall
under the Forest Practices Act and are under State Forestry's jurisdiction, contact
the city first. If the issue is not resolved to a complainant's satisfaction,
contact Jim Buisman, county public works director.
Erosion - is the movement of soil
particles, mud, dirt, sediment, or similar material resulting from
the flow of, or pressure from, storm water, irrigation water, other
water, or wind, where the movement is from a site onto public or private
streets, onto adjacent property, into a public storm or surface water
system, or into a private storm or surface water system that drains
or is likely to drain into a public storm or surface water system.
Sediment -
suspended material that settles to the bottom of a liquid. Sediment
is both a direct pollutant, and a vehicle that carries other pollutants
to Devils Lake and its tributaries.
Erosion control tips for autumn
Autumn is the time to tighten up those building, construction, excavating
and landscaping projects.
• Emphasize erosion prevention rather than sediment control.
• Cover all exposed soil
• Minimize the extent and duration of exposed areas.
• Install sediment control measures to keep sediments on site.
• Make sure silt fences are properly installed, and are keyed in, and they
follow the contours of the landscape.
• Install control measures to keep storm runoff velocities low.
• Monitor the site frequently and maintain control measures.
Shoreline erosion from wakes and storms
Native vegetation can be added to your shoreline. The root systems trap
sediment, keeping it on the shoreline where it belongs. Vegetation also
dissipates the energy of a wave which reduces the impact of breakers. A
wave crashes, hits the vegetation, gets slowed down, but the energy still
flows forward eventually wearing itself out. Armored or rocked shorelines
actually add to erosion as they fail to dissipate the wave energy and
simply reflect it somewhere else. It is a simple property of physics – equal
and opposite reaction. This ends up channeling the energy onto a less
armored “weaker” shoreline which will end up eroding faster.
This then will provide an access point for more wave energy to enter
which eventually undermines the rocked edge as well. Rock has another
problem in that it does not trap sediment very well like roots do. Water
that crashes through the boulders eventually will reach the finer sediment
on the shore which if exposed will get lifted away and flushed into the
lake. Concrete walls cause the same thing. They too reflect wave energy
and like rocked structures increase the erosional effects. This happens
as the wave energy hits the wall and then cycles downward undermining
the wall itself. Sediment is lost under and from behind the wall
as gravity pulls down soils on the land to replace those that have been
washed to the lake bed.
Best thing to remember is that vegetation holds soil, not rocks, and
thus encouraging a richly intertwined root system of many different species
of plants is nature’s way of holding soils in place. Of course
trees do fall into streams and lakes over time, but this too is natural
and serves an ecological need as well, providing habitat, etc. Nature
acknowledges this by spreading more seeds upland to replace those that
grew before. End of the day (on a geologic timescale) mountains wither
to the sea, and erosion natural or man-made will do its best to tear
down mountains or shorelines, vegetation is the buffering system though
that slows this down (on the order of centuries and millennia). So best
management practice (BMP) for your shoreline…let it go wild. Get
rid of a lawn should you so have one in favor of shrubs and other plants
that actually have decent sized root systems. Plant low growing willow
trees as they tend to grow quickly, and have a great capacity to thatch
together a root system. This will protect your shoreline and property
as well as use up nutrients before they get into the lake. Devils Lake
used to support Sitka Spruce trees 250’ tall, which grew everywhere
(many still do where development has either not occurred or where they
were spared), and they grew without fertilizer, so we know naturally
there are nutrients available that can sustain large (enormous) native
plants. (DLWID manager Paul Robertson)
Lincoln City has declared September to be Erosion Prevention Awareness
Month, and during September conducts events to promote a greater
awareness of the problems with erosion and the solutions to prevent it.
The City of Lincoln City, and the Devils Lake Water Improvement District
(DLWID) hold an Erosion Prevention and Sediment Control Workshop in the
fall. Each year they publish the names of the participants in The News
Guard, the local newspaper. The list in the past has included builders,
excavators, road builders, contractors, public officials, and news media.
Past guest speaker and panelist has been Fred Wright, President of the
Pacific NW International Erosion Control Association. The national address
is PO Box 774904, Steamboat Springs, CO 80477-4904, Phone: 1-800-455-4322,
Website: www.ieca.org.
Erosion Ordinance:
Past DLWID manager Dave Wagner promoted an erosion control ordinance,
and the next DLWID manager Bob Storer continued work on the ordinance.
PADL member and DLWID board member Lynn Hermo researched ordinances in
other coastal cities. In 1996 the main body of the ordinance was written
relating to sediment and erosion control and storm water management.
In November of 1997 the City Council of Lincoln City approved
an ordinance amending Chapter 12.08 (Grading and Excavations) of the municipal
code to conform to the city's grading regulations with minor revisions, to appendix
Chapter 33 of the uniform building code; to establish erosion prevention and
sedimentation control regulations; and to provide for educational programs, and
declaring an emergency.
Also, in November of 1997 the Council approved an ordinance
amending Chapter 12.08 (Grading and excavations) of the municipal code to make
compliance with Chapter 12.08 a condition to receiving new city water service
outside the city; and declaring an emergency.
A. To maximize the likelihood that appropriate erosion prevention
and sediment control requirements will be followed within the Lincoln City urban
growth boundary, the city shall not provide a new water service to any property,
outside the city but inside the urban growth boundary, unless the property owner
first enters into a written agreement, approved by the city engineer, that before,
during, and following any land disturbing activity on the property, the owner
will fully comply with all requirements, procedural and substantive, of this
chapter, as though the property were within the city.
B. In the event land disturbing activity occurs in violation of an
agreement entered into under subsection (A) of this section, the city engineer,
as a remedy in addition to any other available remedy, may cause a termination
of water service to the property.
Finally in the spring of 2000 with continued effort by DLWID manager
Lori Campbell, the Lincoln County Board of Commissioners approved the ordinance
that creates regulations to control erosion and prevent sediment loss in the
county lands around Devils Lake. More than half of the lake is outside the city's
jurisdiction, and far more than half of the watershed is.
There are two categories of regulations. One is large scale excavating
and grading work, defined as more than 50 cubic yards of material, the other
is small scale activities of the same sort. The Lincoln County Public Works would
administer the grading permit required.
Roads - The Oregon Department of Transportation is subject
to state and federal erosion laws. Road projects require an erosion control plan
that includes a pollution control and landscaping plan. Discharge permits are
required from the Department of Environmental Quality (DEQ). DEQ can actually
shut down a road project that does not comply.
Moving dirt - Projects that involve
moving dirt may be required to file with the National Pollution Discharge Elimination
System (NPDES).
Leaking Loads - It is illegal to leak mud or other substances
onto roads. Muddy trucks should be washed before traveling on public roads. Mud
can make roads slippery, a real road hazard. Check with the state motor vehicle
laws, and information on a leaking load permit.
Runoff
Definitions:
1. That part of the precipitation, snow melt, or irrigation water that
appears in uncontrolled surface streams, rivers, drains or sewers. Runoff
may be classified according to speed of appearance after rainfall or
melting snow as direct runoff or base runoff, and according to source
as surface runoff, storm interflow, or ground-water runoff.
2. The sum of total discharges described in (1), above, during a specified
period of time.
3. The depth to which a watershed (drainage area) would be covered if
all of the runoff for a given period of time were uniformly distributed
over it.
For more information see, http://ga.water.usgs.gov/edu/runoff.html
and http://www.epa.gov/nps/
Rain Gardens - Infiltration technique to capture water
runoff and reduce nonpoint source pollution, see http://dnr.wi.gov/org/water/wm/nps/rg
_________________________________________________
Erosion Control Workshop 2006-
Thurs., October 26 - download agenda doc
The 2006 Erosion Control Seminar and Vendor Fair is growing! Lincoln
City Public Works and the Devils Lake Water Improvement District are
combining to bring the best erosion control seminar yet this Thursday
October 26th starting at 8:30 am at City Hall. Guest speakers will include
the dynamic erosion control guru Mr. Fred Wright of Environmentally Wright
and Ms. Laine Young of Landlinks Consulting LLC. Together with eight
vendors from around the Pacific Northwest and California, this year’s
seminar has really shaped up. Topics considered this year will include
details from local sites including the Villages @ Cascade Head and others.
Additionally, Paul Robertson of the Devils Lake Water Improvement District
will present his own presentation on Safeguarding the Lake: Reasoning
for Exceptional Erosion Prevention & Control. As always the event
is free, open to the public, and includes lunch for those that RSVP Annemarie
at 996-2154 by the 24th. As a bonus many Door Prizes are to be had including
a FREE Erosion Site Plan & Installation including all the materials
and labor done by those that enforce the rules themselves: Public Works.
Also look for a number of vendor prizes still coming in as well as meals
at restaurants such as the Kernville Steak and Seafood House. So in order
to win your chance to see our own public employees slaving away at your
next building project be sure to attend the Erosion Control Seminar and
Vendor Fair in Lincoln City at City Hall on the 26th.
Erosion
Avoid the rainy season for moving earth, replant exposed areas as soon as possible.
Improve drainage around your home and in your yard, to keep runoff out of
storm drains by filtering slowly into the soil. Avoid landscaping with hard
surfaces, such as concrete. Instead, select native vegetation, gravel, or
other porous materials. Redirect rain gutters to your lawn . . . or collection
barrels to water your garden.
Home
Blue
Green Thumb Watershed Education Program -
A program of the Preservation Association
of Devils Lake (PADL)
Copyright © 2003-2010 Preservation Association of Devils Lake (PADL)
All
rights reserved.
P.O. Box 36
Lincoln City, OR 97367
PADLsteward@wcn.net
www.devilslakeor.us
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Erosion
Control Workshop planned annually
Erosion
documents
1. Lincoln City and Lincoln County - Intergovernmental
Agreement between Lincoln County and The City of Lincoln City for Administration
of grading and erosion control services. download
document
2. Lincoln
City - Grading and Erosion Control ordinances Chapter
12.08 from the website service posting Lincoln City's ordinances. download
document
a. The city shall declare each September to be Erosion
Prevention Awareness Month and during September shall conduct events
to promote a greater awareness of the problems with erosion and the solutions
to prevent it.
b. The city, in cooperation with the Devils Lake Water Improvement
District, shall sponsor an annual workshop on erosion prevention
and sediment control.
www.lincolncity.org, ordinance site, search
for erosion
3. Lincoln
County - Erosion Control ordinances 3.100 through 3.195
from the Lincoln County website www.co.lincoln.or.us download
pdf
4. Lincoln
Soil and Water Conservation District fact sheet. download
pdf
5. Lincoln City Public Works Department - Grading and
Erosion Control Ordinance, Erosion Prevention & Sedimentation Control
Practices, Technical Guidance Manual, Revised November, 1999
$15 per copy
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