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Andrew
is a member of Earthaven Ecovillage.
He teaches permaculture design
as a member of the Ecovillage
Training Center faculty
at The Farm in Tennessee and
Culture's Edge at Earthaven
in North Carolina in addition
to consulting overseas. He can
be reached at
permaheartataol.com
The
following article originally
appeared in The Permaculture
Activist November 1996, #35
which had the theme of Village
Design. Copies of this and other
issues are available from the
Activist
(see Back
Issues) |
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If
most readers are anything
like me, the mention of designing
for localized catastrophes
elicits a "...yeah, yeah,
I know..." response, followed
by skimming the material through
to the next topic. This has
been my response, even though
I would say I know better.
However, events of the past
year have awakened me from
my slumber of ignorance, and
changed my perceptions of
the utter importance of design
for natural catastrophes.
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Fire
comes calling

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| On
the last morning of a 3-day Ecovillage
Design course held last April
at The Farm in Summertown, Tennessee,
Max Lindegger was showing us an
exercise he had employed at Findhorn
to help residents there envision
cleansing the landscape of old
constructions as a prelude to
fresh design thinking. As he described
wiping away the old as if it were
so many papers on a wall, Max
swept his long arms dramatically
across the horizon. At just that
moment Training Center coordinator
Albert Bates strode urgently into
the meeting space to announce
a fire in the tractor barn; all
hands were needed! Wondering how
life could so fantastically mimic
art, we scrambled for the doors
- 50 people from all walks of
life, who'd been together less
than 72 hours, diving in a controlled
panic for scraps of support: caps,
boots, water bottles. Out of our
fleeting recollections of the
scene and with the help of some
of the youth from the Farm School
across the road, various shovels
and rakes were rounded up, and
within a few moments all participants
were packed into a motley caravan
of vehicles following a lead car
towards the barn. |
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A
billowing cloud of black smoke
rising from the forest ahead
resolved into a scene of intense
danger: the whole structure
of the barn was aflame, the
raging firestorm whipped to
a frenzy by a strong breeze
blowing across the adjacent
field. Nearby trees exploded
into flame. The barn was set
back into the forest where the
open ridge began to drop into
a wooded valley. An impenetrable
wall of heat pressed out from
the fire nearly a hundred feet
in all directions, igniting
leaves and duff on the forest
floor and setting the smaller
branches of the canopy to burning.
Spot fires leapt ahead of the
front as exploding embers cascaded
downwind. The fire began spreading
down the small valley, threatening
nearby businesses and homes
located a scant hundred meters
away. Grabbing rakes and shovels
we spread out and began pulling
the smoldering duff back to
create fire breaks ahead of
the flames.
No
water mains were accessible
(the biggest supply line
was only 2"), nor any large
water storages, so others of
our crew headed for the nearest
house taps, scanning the landscape
for buckets and containers in
a desperate attempt to slake
the ravenous hunger of the fire.
Two hundred yards up the road
the residents of the next house
were surprised to learn of the
fire raging nearby as our volunteer
firefighters commandeered a
garden hose and trash cans to
begin supplying a thin stream
of the precious liquid to a
nascent bucket brigade. The
output of the hose was pitifully
slow and meager compared to
the fury of the raging fire,
but they began ferrying cans
filled with water back to the
fire front, and in doing so,
discovered an escaped aerial
bomb that had erupted in a small
blaze well out of sight of us
scurrying fire-breakers. They
efficiently put it out, leaving
a seven-foot-wide blackened
tattoo just 20 meters from a
nearby residence.
Roving
teams of shovel-wielding troopers,
their bandana-wrapped faces
smudged with smoke, worked around
the edges stamping out smoldering
piles of leaves, while a hastily
formed chorus line splashed
water at the base of trees ahead
of the fire front. At one instant,
the wind dropped, the breeze-driven
flames changed direction, and-at
last behaving favorably-they
raced uphill, back towards what
had been the tractor barn; the
fire, in effect, had created
its own back burn. Ceasing its
advance, the fire was contained,
and within moments the local
fire department arrived. All
that was left to be done was
to spray down the smoking carcass
of the barn. |
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Learning
the lessons
Afterwards,
as we were eating lunch,
I conducted a quick interview
of each person, asking, "what
did you learn from this experience?"
With the awesome power of fire
still vivid in our minds, the
answers provided important clues
for designing against fire catastrophe.
Two of the most noted observations
were the great value of roads
as firebreaks, and the tendency
of fire to move upslope. The
one place where the fire stopped
cold was at the road: no more
combustible material (In the
case of a tree-tunneled road,
this would not be so). As mentioned
above, the moment the wind off
the ridge slowed, the fire rushed
uphill, back upon its own path,
creating a natural backfire.
It
was obvious to almost everyone
in our group that as
permaculture designers we must
be aware of the multiple functions
of every road placement as a
fire break, and that Zone 1
landscape design should discourage
fire moving in, especially from
down slope. Even with fire's
tendency to move uphill, a home
needs to have some firebreak
on all sides. This could include:
a chicken run, a roadway, a
pond, garden space, or short-cropped
grass. No conifer-lined driveway,
please! (This makes an irresistible
fire alley leading right to
your house.)
Another
point mentioned repeatedly
among the impromptu firefighters:
have fire extinguishers handy,
and make sure they are operable.
Tragically, the first person
on the scene of the tractor
barn fire rushed up when the
fire was small - hence containable
- with an extinguisher that
failed to operate. In the early
stage of a fire, an intervention
point exists where the least
amount of effort achieves the
greatest effect. A working extinguisher
or other appropriate tool applied
at the right point in the early
phase of a fire can prevent
a tragedy.
Many
people commented on the need
for stored water - pumped
water can be more than adequate
for domestic and agricultural
needs, but still fall far short
of what is needed for fire control.
That water needs to be available
near every building-no less
in rural areas than in urban-thus,
catchment from every roof seems
advisable. Other sensible suggestions
included making a central location
for storage of fire fighting
tools, training fire response
organizers, and establishing
and practicing community fire
plans and response.
Lastly,
storage of combustible materials
around a structure was noted
as a time bomb ticking away.
(How many of us readers have
similar materials stored in
and around our homes and businesses,
and have been lulled by the
passage of time into not considering
the potential dangers?) |
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An
ounce of prevention...
The
overwhelming experience of most
of us was awe and astonishment
at the power and rapidity
with which fire moves. There
can be no substitute for preparation.
In the event of fire, there
is no time to develop resources;
they must be already at hand,
their use must be familiar and
practiced, and there should
be many layers of redundancy
in the systems of response.
The shock of encountering the
fire left many of us in numb
confusion, taking away the little
power we did have to make a
difference. Thus, experience
and training for fire are necessary
to overcome the body's natural
fear and flight responses.
Almost
all of us commented upon the
value of community, and
that a group of folks -going
just on gut reaction- can achieve
quite a lot.
In
summary, design for prevention
of fire-induced loss needs to
include: strategically placed
roads and ponds, low combustible
zone 1 area, water catchment,
functioning extinguishers and
other fire-fighting equipment
at hand, and a planned community
response. |
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Water's
Extremes
Two
catastrophic events moved through
Earthaven Ecovillage in 1996,
leaving unmistakable footprints
of destruction, and alerting
us to the power of natural phenomena:
the extreme faces of water.
The aftermath of a severe ice
storm in February left Earthaven's
woodlands looking like a war
zone. The destruction to trees
was painful to see: broken trunks
and snapped branches in every
direction. Residents said it
also sounded like a battle zone,
with continual snapping and
crashing throughout the night.
(The storm left a plethora of
wildlife trees and far too many
shiitake mushroom logs).
The
situation generated two layers
of concern. First, quite a few
big trees went down, enough
to spook the community into
wanting all trees taken down
within falling distance of future
dwellings. The result of this
was a more thorough look at
the role and quality of trees
in the Zone 1 landscape. Indeed,
trees leaning towards dwelling
sites were marked for removal
(to be sawn into lumber and
used in the buildings), and
all community members were encouraged
to mark any trees in the area
that they felt attached to or
special towards. The community's
Site Committee and Keeper of
the Trees evaluated potential
safety concerns, then, in effect,
the remaining trees in the village
area were timbered by horse
loggers and cut into lumber
on site by a portable sawmill.
Trees also blocked our road
immediately after the storm,
raising questions of evacuation,
supply to an isolated rural
settlement, and having equipment
on hand to clear large numbers
of downed trees.
The
second concern was of a damaged
forest made more vulnerable
to fire. The broken timber was
primarily mature and dying jack
and short-leaf pine and some
red oaks. With a massive amount
of combustible litter on the
forest floor, the summer and
fall ahead looked to be an especially
dangerous time. A regular program
of selective harvest will eventually
reduce the overburden of dying
pines (which reflects the successional
stage of this young forest)
and speed succession toward
a more stable species composition.
We can also expect to design
our road system to create firebreaks
around future dwelling areas.
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The
Power of Flowing Water
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As
it turned out, the following
early autumn was a wet season,
which relieved us of concern
about fire during this usually
dry period. But the rains brought
another form of danger. After
two especially heavy nights
of rain and thunderstorm, a
400-year storm event descended
upon the mountains surrounding
Earthaven, dropping 11 inches
of rain in three hours. The
earth was already saturated
from a month of almost daily
rain: there was no place for
the water to go but downhill.
And that it did!
The
creeks in the Earthaven watershed
had been flowing without problem-even
with all the previous rains-yet
under torrential downpour the
creek waters rose several feet
within 15 minutes, inundating
all the adjacent floodplain:
two cars floated downstream,
the lower section of an "Airstream"
trailer near the creek was buried
in large river rock, a massive
oak footbridge (35 feet long,
29 inch diameter) previously
perched five feet above creek
level washed several hundred
feet downstream, and all three
stream fords and footbridges
blew out. In addition, the creeks
jumped their beds in several
locations, scoured out several
sections of road surface (removing
several thousand dollars of
freshly laid rock and gravel),
and at one vulnerable spot,
the creek jumped its meander
and took a huge bite several
feet into our main road, leaving
just enough room for a light
vehicle to squeeze by between
the drop-off and an up-sloped
cliff. In effect, the community
was cut off: no other way in
or out, except by foot.
To
pitch the drama even higher,
the flood roared through at
midnight, when a response to
it was most difficult. The waters
obviously disrupted the patterns
of many animals besides the
humans. One particularly disgruntled
copperhead (a poisonous snake)
struck a community member (though
with little effect as it hit
the ankle bone), another man
was nearly swept away in his
car, the phone line was cut
by the flood waters, and Hurricane
Fran was due to hit the next
night.
The
story goes on, (but not to leave
the reader suspended, Fran never
showed her face in western NC),
the cars were dug out and moved
to higher ground before being
hauled to the local mechanics-one
is still in use, although its
owner says that on occasion
it releases a smell of mud and
salamanders; the other didn't
respond to resuscitation. The
road was moved several feet
away from the stream cut, and
the stream rerouted at that
spot. However, its natural propensity
is to move in the direction
that the road happens to occupy.
From
a village design perspective,
these disasters contain a silver
lining, for they bring to the
forefront the necessity that
design must include and respect
all possibilities of extreme
natural phenomena, including
fire, flood, and ice. (Wind
and earthquake are also possible
catastrophes, but haven't struck
us yet.) They also reveal to
us the force of the elements
we must reckon with. We are
better informed of the potential
flows of water across our road,
for example, and can more accurately
place berms, drains and revetments
to divert future floodwaters
and reinforce vulnerable streambanks.
We have learned that maintenance
of our streambanks is important
to prevent the damming effects
of fallen logs. We will not
use floodplain areas for parking,
let alone for buildings. We
will prepare evacuation plans,
take care to have emergency
supplies well cached, and look
into back-up communication systems.
We
often excuse shortcuts in implementing
thorough design under the illusion
of "too costly, not enough money
available, would be nice to
do but..." Yet not to consider,
or worse, to ignore these implications,
may result in unnecessary loss
of life or property to a family,
community, or village. One only
needs to look catastrophe squarely
in the face once to learn the
cost of ignoring the power of
nature. Permaculture seeks to
avoid these disastrous potentials
through observation followed
by good, thorough design patterning,
working with rather than against
the forces of nature-both wonderful
and fierce, thereby creating
sustainable relationships with
each other and our surroundings.
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