[Iowa-dx] Water Sink Holes and: Can DC Learn From Green Chicago?
GreenParty Ron
greenpartyron@activist.com
Thu, 29 Nov 2007 12:41:37 -0500
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From: GreenPartyRon@activist.com=20
To: IowaGreenDiscussion@yahoogroups.com
CC:
Subject: [IowaGreenDiscussion] Water Sink Holes and: Can DC Learn
>From Green Chicago?
Date: Thu, 29 Nov 2007 17:25:28 -0000
The only thing I have to say about this, the original news release
following, is a well-known fact I learned from scientific journals: wateris
a UNIVERSAL SOLVENT... water will dissolve, rust, or corrodeANYTHING over
time, including glass, steel, and yes, especiallyconcrete. It is just a
matter of time.
I certainly hope that Chicago has fully researched this, because
although it is natural for moisture and water to matriculate into the
soil,it can cause sink-holes.
I have no idea how many of the sink-holes that have occurred acrossour
nation, which were in the news, were caused by mining or oilpumping, if
any. The old mine-caused ground collapses inPennsylvania are legendary,
and the first of those became noticeablewhen railroad trains began
falling into them in the 1880s.
But there are other verified instances where nothing but water soakinginto
the ground and creating caves, particularly in limestone areas, hasbeen
the cause of houses and trucks falling into sink-holes.
Where soil is present, for tree and plant roots to soak up much of thewater,
I think there is only a very remote chance of creating sink holesin
general. That is why the redwoods in Oregon and Washington areso tall,
because very tall tree trunks must be present to soak up all ofthat water
and to return it to the atmosphere as respiration. Whenthey began cutting
down almost all of the redwood forests aroundPortland Oregon for housing
developments, they began experiencingflooding such as they never had
before.
However, when there is no process for absorbing water belowground that is
soaking into and through permeable concrete andasphalt, it has to go
somewhere. And since water is the universalsolvent, if it pools in the
underground, it will dissolve the substrata; if itcan flow through the
substrata into the water table, maybe then it willbe generally harmless
as a water table regenerated resource.
I hope the City of Chicago has done its research!
Ronald Kinum
a.k.a. Libris Fidelis
----- Original Message -----
From: "David Bosserman"
To: dcsgp@yahoogroups.com, WardOneDC@yahoogroups.com,
"Mt P DC"
Subject: [dcsgp] Can DC Learn From Green Chicago?
Date: Thu, 29 Nov 2007 05:50:41 -0500
CHICAGO GREENS ITS ALLEYS
NY TIMES - With nearly 2,000 miles of small service streetsbisecting
blocks from the North Side to the South Side, Chicago isthe alley capital
of America. In its alleys, city officials say, it has thepaved equivalent
of five midsize airports.
Part of the landscape since the city began, the alleys, mostly home togarba=
ge
bins and garages, make for cleaner and less congested mainstreets. But
Chicago's distinction is not without disadvantages:Imagine having a
duplicate set of streets, in miniature, to maintain that
are prone to flooding and to dumping runoff into a strained sewersystem.
What is an old, alley-laden city to do? Chicago has decided to retrofitits
alleys with environmentally sustainable road-building materialsunder its
Green Alley initiative, something experts say is among themost ambitious
public street makeover plans in the country. In alarger sense, the city
is rethinking the way it paves things.
In a green alley, water is allowed to penetrate the soil through thepavement
itself, which consists of the relatively new but little-usedtechnology of
permeable concrete or porous asphalt. Then the water,filtered through
stone beds under the permeable surface layer,recharges the underground
water table instead of ending up aspolluted runoff in rivers and streams.
Some of that water may even end up back in Lake Michigan, fromwhich
Chicago takes a billion gallons a year.
The new pavements are also designed to reflect heat from the suninstead
of absorbing it, helping the city stay cool on hot days. Theyalso stay
warmer on cold days. The green alleys are given new kindsof lighting that
conserve energy and reduce glare, city officials said,and are made with
recycled materials.
The city will have completed 46 green alleys by the end of the year,and
it has deemed the models so attractive that now every alley itrefurbishes
will be a green
alley.
Dave Bosserman
La Orilla
1739 Irving St NW
Washington, DC 20010
orilla@comcast.net
--=20
Over 2 Million Holiday Gift Ideas - Take a Look!
mail.com shopping at http://mail.shopping.com/?linkin_id=3D8033174
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<DIV>
<DIV>
<DIV>From: GreenPartyRon@activist.com <BR>To: IowaGreenDiscussio=
n@yahoogroups.com <BR>CC: <BR>Subject: [IowaGreenDiscussion] Water Sink Hol=
es and: Can DC Learn <BR>From Green Chicago? <BR>Date: Thu, 29 Nov 2007 17:=
25:28 -0000 <BR><BR>The only thing I have to say about this, the original&n=
bsp; news release<BR> following, is a well-known fact I learned from scient=
ific journals: water</DIV>
<DIV>is a UNIVERSAL SOLVENT... water will dissolve, rust, or corrode</DIV>
<DIV>ANYTHING over time, including glass, steel, and yes, especially</DIV>
<DIV>concrete. It is just a matter of time. <BR><BR>I certainly hope =
that Chicago has fully researched this, because<BR>although it is natural f=
or moisture and water to matriculate into the soil,</DIV>
<DIV>it can cause sink-holes. <BR><BR>I have no idea how many of the sink-h=
oles that have occurred across</DIV>
<DIV>our nation, which were in the news, were caused by mining or oil</DIV>
<DIV>pumping, if any. The old mine-caused ground collapses in</DIV>
<DIV>Pennsylvania are legendary, and the first of those became noticeable</=
DIV>
<DIV>when railroad trains began falling into them in the 1880s. <BR><BR>But=
there are other verified instances where nothing but water soaking</DIV>
<DIV>into the ground and creating caves, particularly in limestone areas, h=
as</DIV>
<DIV>been the cause of houses and trucks falling into sink-holes. <BR><BR>W=
here soil is present, for tree and plant roots to soak up much of the</DIV>
<DIV>water, I think there is only a very remote chance of creating sink hol=
es</DIV>
<DIV>in general. That is why the redwoods in Oregon and Washington are</DIV>
<DIV>so tall, because very tall tree trunks must be present to soak up all =
of</DIV>
<DIV>that water and to return it to the atmosphere as respiration. When</DI=
V>
<DIV>they began cutting down almost all of the redwood forests around</DIV>
<DIV>Portland Oregon for housing developments, they began experiencing</DIV>
<DIV>flooding such as they never had before. <BR><BR>However, when there is=
no process for absorbing water below</DIV>
<DIV>ground that is soaking into and through permeable concrete and</DIV>
<DIV>asphalt, it has to go somewhere. And since water is the universal</DIV>
<DIV>solvent, if it pools in the underground, it will dissolve the substrat=
a; if it</DIV>
<DIV>can flow through the substrata into the water table, maybe then it wil=
l</DIV>
<DIV>be generally harmless as a water table regenerated resource. <BR><BR>I=
hope the City of Chicago has done its research! <BR><BR>Ronald Kinum <BR>a=
.k.a. Libris Fidelis <BR><BR>----- Original Message ----- <BR><BR>From: "Da=
vid Bosserman" <BR>To: dcsgp@yahoogroups.com, WardOneDC@yahoogroups.com, <B=
R>"Mt P DC" <BR>Subject: [dcsgp] Can DC Learn From Green Chicago? <BR>Date:=
Thu, 29 Nov 2007 05:50:41 -0500 <BR><BR>CHICAGO GREENS ITS ALLEYS <BR><BR>=
NY TIMES - With nearly 2,000 miles of small service streets</DIV>
<DIV>bisecting blocks from the North Side to the South Side, Chicago is</DI=
V>
<DIV>the alley capital of America. In its alleys, city officials say, it ha=
s the</DIV>
<DIV>paved equivalent of five midsize airports. <BR><BR>Part of the landsca=
pe since the city began, the alleys, mostly home to</DIV>
<DIV>garbage bins and garages, make for cleaner and less congested main</DI=
V>
<DIV>streets. But Chicago's distinction is not without disadvantages:</DIV>
<DIV>Imagine having a duplicate set of streets, in miniature, to maintain t=
hat<BR> are prone to flooding and to dumping runoff into a strained sewer</=
DIV>
<DIV>system. <BR><BR>What is an old, alley-laden city to do? Chicago has de=
cided to retrofit</DIV>
<DIV>its alleys with environmentally sustainable road-building materials</D=
IV>
<DIV>under its Green Alley initiative, something experts say is among the</=
DIV>
<DIV>most ambitious public street makeover plans in the country. In a=
</DIV>
<DIV>larger sense, the city is rethinking the way it paves things. <BR><BR>=
In a green alley, water is allowed to penetrate the soil through the</DIV>
<DIV>pavement itself, which consists of the relatively new but little-used<=
/DIV>
<DIV>technology of permeable concrete or porous asphalt. Then the water,</D=
IV>
<DIV>filtered through stone beds under the permeable surface layer,</DIV>
<DIV>recharges the underground water table instead of ending up as</DIV>
<DIV>polluted runoff in rivers and streams. <BR><BR>Some of that water may =
even end up back in Lake Michigan, from</DIV>
<DIV>which Chicago takes a billion gallons a year. <BR><BR>The new pavement=
s are also designed to reflect heat from the sun</DIV>
<DIV>instead of absorbing it, helping the city stay cool on hot days. They<=
/DIV>
<DIV>also stay warmer on cold days. The green alleys are given new kinds</D=
IV>
<DIV>of lighting that conserve energy and reduce glare, city officials said=
,</DIV>
<DIV>and are made with recycled materials. <BR><BR>The city will have compl=
eted 46 green alleys by the end of the year,</DIV>
<DIV>and it has deemed the models so attractive that now every alley it</DI=
V>
<DIV>refurbishes will be a green <BR>alley. <BR><BR>Dave Bosserman <BR>La O=
rilla <BR>1739 Irving St NW <BR>Washington, DC 20010 <BR>orilla@comcast.net=
</DIV></DIV></DIV><BR>
--=20
<div> Over 2 Million Holiday Gift Ideas -<a href=3Dhttp://mail.shopping.com=
/?linkin_id=3D8033174 target=3D"_blank"> <b>Take a Look!</b></a><br>
mail.com Shopping</div>
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