O-64-29Ordinance No. 0 -64 -29
Ordinance Amending Building Code.
BE IT ORDAINED by.the President and Board of Trustees of the
Village of Deerfield,
Cook
and Lake Counties, Illinois,
that:
The Municipal
Code
of Deerfield of 1963 be and.the
same is.
hereby amended by adding thereto and inserting therein, following
paragraph 22.806 thereof, the following:
Article IX. Flood Plain Requirements
22.901 Requirements.) No new or existing building or structure
shall be erected or moved within a flood plain unless the lowest
floor including the basement floor is as an elevation which is
not less than two (2) feet above the Flood Base Elevation for
the site; provided, however, that basement floors may be erected
below such elevation when the top of any basement wall or the
bottom of any opening therein is not less than two feet above
such elevation and the construction of such basement complies
with such special- requirements as may from time to time be
adopted by,the Village of Deerfield.
The term "flood base elevation" shat be construed to mean
that elevation of the highest flood of record, as reported
by the United States Department of the Interior, Geological
Survey in the report "Floods in Highland Park Quadrang(le,
Illinois" and as shown for specific locations on the Flood
Plain Map on file in the office of the Building Commissioner.
The controlling flood base elevation for any building site
shall be the same as the flood base elevation, as interpolated
by the Building Commissioner, at the nearest point of the
water course as measured on a line perpendicular to the
direction of the water course.
22.902 Fi 1 1 i ng.) The-Ji 1 1 i ng of lands where the existing
ground elevation is less than the flood base elevation shall
be permitted provided, (a) that the fill material is obtained
from adjacent areas lying below the flood base elevation or
(b) that the fill material obtained elsewhere is offset
by the removal of an equivalent volume of material obtained.
in the bmmediato vicinity of the building site from elevations
lower than the flood base elevation. If fill'or any type
of construction which would displace flood waters is placed
within the flood plain, a flood reservoir shall be constructed
(the bottom of which shall not be lower than the bottom of
the adjacent water course) equal in volume of such fill or con-
struction deposited below the flood base elevation. Each
such flood reservoir shall have adequate provision.for
drainage to the waterway. The deepening of a water course
is permitted, but the material removed must not be deposited
below the flood base elevation, except in accordance with (b).
above. The placement of fill material shall parallel the water
course.
22.903 Foundation.) a. Design. Foundations (including
retaining walls) shall be designed to resist the pressure
of the retained material including both dead and live load
surcharges to which they may be subjected, and to insure
stability against overturning, sliding, excessive foundation
pressure and hydrostatic uplift, unless provision is made to
prevent the development of hydrostatic uplift by the use of
properly designed drain tile, French Drains, and connecting
sumps and sump pumps.
;b'. Waterproofing - Alkwal -ls, floors, and slabs
below grade shall be waterproofed by the application of
mastic and fabric material to the exterior of the wall, and
beneath the wa 1 1 and floor sal, sb, with appropriate water stops
at all other joints as-shown in Koppers Bulletin AIA No. 12B,
p23 -p26 or the equivalent. If hydrostatic pressure is prevented
by an adequate drainage system, such as outlined in paragraph
22.904, the walls need only be damp - proofed, as,shown in
Koppers Bulletin AIA No. 12B. p26 and 27 or the equivalent,
and joints sealed with pitch without the need for an impervious
membrane.
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fl
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C. Floor Construction - All floors at grade or
below grade subject to hydrostatic pressure sna)) be
designed-to resist a uniformly distributed uplift equal
to the full hydrostatic pressure, unless a system of
exterior footing drai iis atid under floor drains are in-
stalled to prevent the development of such hydrostatic
pressure in, the event that the soils at the site of the
building are highly impervious and the only water seepage
anticipated is penetration downward from ground water
rather than.upward from below, the exterior footing drain
system would be considered adequate without the require-
ment of an under floor drainage system with the approval
of the Building Commissioner.
d
sites are
be sloped
f i l led up
below the
and maint,
Grading Around Building - Wherever building
or may be subject to flooding,-the lot shall
1' to 15' around each building and shall be
to about six inches (611) or one foot (1')
minimum sill elevation for building openings
3ined at an elevation 1' above the flood base
elevation for the site at a minimum distance of 15' from
the building. On building sites located on higher ground,
the surface of each lot shall be graded so as to slope
away from each building and provide a shallow swale
between adjoining properties.
22.904 Footing and Under Floor Drains.) Footing drains
around the foundation shall be a minimum 4" in diameter,
installed on the outside of the footings and shall be
properly surrounded with granular filter material. The
granular filter material shall be well graded from fine
to coarse to prevent washing of fines from the surrounding
soils into the drains while at the same time maintaining
adequate permeability -for the flow of water into the
drains.
The grain size requirements for satisfactory filter
materials are defined by the following formula:
D15 (Filter 4 D15 (Filter
D85 (of Protected Soil D15 (of Protected Soil
Where D15 (Filter) = 15% size of filter material from
gradation curve
D15 (of Protected Soils) = 15% size of protected
soil from gradation curve
D85 (of Protected Soil), + 85% size of protected
soil from gradation curve
Vn order to assure adequate permeability of
the filter material, the minimum D15 size of filter
material shall be equal to the #60 sieve size (.0098).
The maximum permissible opening between tiles
shall be no more than 2 the D85.:stie:�bf, th6'Ji lter
material.
The drains shall be connected to a gravity
system di schargi.ng; Lnto ;;the Village sewer system,.
or shall be discharged into a sump pit in the basement
of the building, with a sump pump and float valve to,
discharge the water wither into the flood plain or into
the Village storm sewers if and when permitted by Village
ordinances.
Under floor drains shall be a minimum'4" in diameter
and there shall be a minimum of 10 feet of drain for
every 100 square feet of floor area. The drains shall be
properly surrounded with a minimum of 6 inches of granular
filter material as defined above for the footing drains.
In addition, a minimum of 4" of approved granular material
shall be placed beneath the slab aarid.-,§hall connect to the
under drains to facilitate seepage to the drain tile.
22.905 Penalty.) Any person, firm or corporation
violating any of the provisions of this article shall
be fined not less than five dollars nor more than five
hundred dollars for each offense, and a separate offense
shall be deemed committed on each day during,or on which
a violation occurs or continues.
Passed this,3rd day of August, 1964.
APPROVED:
Attest;
Village Clerk
I. K. Hearn
Village President
Published: August 13, 1964 in the Deerfield Review
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Ordinance No. 0-64-29
Ordinance Amending Building
Code.
BE IT ORDAINED by the President and Board of Trustees
of the Village of Deerfield, Cook and Lake Counties, Illinois,
that:
The Municipal Code of Deerfield of 1963 be and the same
is hereby amended by adding thereto and inserting therein,
following paragraph 22.806 thereof, the following:
Article IX. Flood Plain Requirements
22.901 Requirements.) No new or existing building
or structure shall be erected or moved within a
flood plain unless the lowest floor including the
basement floor is as an elevation which is not less
than two (2) feet above the Flood Base Elevation
for the site; provided, however, that basement floors
may be erected below such elevation when the top of
any basement wall or the bottom of any opening therein
is not less than two feet above such elevation and the
construction of such basement complies with such special
requirements as may from time to time be adopted by the
Village of Deerfield.
The term "flood base elevation" shall be construed
to mean that elevation of the highest flood of record,
as reported by the United States Department of the
Interior, Geological Survey in the report "Floods in
Highland Park Quadrangle, Illinois" and as shown for
specific locations on the Flood Plain Map on file in
the office of the Building Commissioner. The con-
trolling flood base elevation for any building site
shall be the same as the flood base elevation, as
-1-
interpolated by the Building Commissioner, at the
nearest point of the water course as measured on a
line perpendicular to the direction of the water
course.
22.902 Filling.) The filling of lands where the
existing ground elevation is less than the flood base
elevation shall be permitted provided, (a)-that the
fill material is obtained from adjacent areas lying
below the flood base elevation or (b) that the fill
material obtained elsewhere is offset by the removal
of an equivalent volume of material obtained in the
immediate vicinity of the building site from elevations
lower than the flood base elevation. If fill or any
type of construction which would displace flood waters
is placed within the flood plain, a flood reservoir
shall be constructed (the bottom of which shall not be
lower than the bottom of the adjacent water course)
equal in volume to the volume of such fill or con-
struction deposited below the flood base elevation.
Each such flood reservoir shall have adequate provision
for drainage to the waterway. The deepening of a water
course is permitted, but the material removed must not
be deposited below the flood base elevation, except in
accordance with (b) above. The placement of fill material
shall parallel the water course.
22.903 Foundations) a. Design. Foundations (including
retaining walls) shall be designed to resist the pressure
of the retained material including both dead and live
load surcharges to which they may be subjected, and to
-2-
insure stability against overturning, sliding,
excessive foundation pressure and hydrostatic
uplift, unless provision is made to prevent the
development of hydrostatic uplift by the use of
properly designed drain tile, French Drains, and
connecting sumps and sump pumps.
b. Waterproofing - All walls, floors, and slabs
below grade shall be waterproofed by the application
of mastic and fabric material to the exterior of the
wall, and beneath the wall and floor slab, with appro-
priate water stops at all other joints as shown in
Koppers Bulletin AIA No. 12B, p23 -p26 or the equivalent.
If hydrostatic pressure is prevented by an adequate
drainage system, such as outlined in paragraph 22.904,
the walls need only be damp- proofed, as shown in Koppers
Bulletin AIA No. 12B, p26 and 27 or the equivalent, and
joints sealed with pitch without the need for an imper-
vious membrane.
c. Floor Construction - All floors at grade or
below grade subject to hydrostatic pressure shall be
designed to resist a uniformly distributed uplift equal
to the full hydrostatic pressure, unless a system of
exterior footing drains and under floor drains are in-
stalled to prevent the development of such hydrostatic
pressure in the event that the soils at the site of the
building are highly impervious and the only water seepage
anticipated is penetration downward from ground surface
rather than upward from below, the exterior footing drain
system would be considered adequate without the require-
ment of an under floor drainage system with the approval
of the Building Commissioner.
-3-
d. Grading Around Building - Wherever building
sites are or may be subject to flooding, the lot shall
be sloped 1' to 15' around each building and shall be
filled up to about six inches (6 ") or one foot (1t)
below the minimum sill elevation for building openings
and maintained at an elevation 19 above the flood base
elevation for the site at a minimum distance of 151 from
the building. On building sites located on higher ground,
the surface of each lot shall be graded so as to slope
away from each building and provide a shallow swale
between adjoining properties.
22.904 Footing and Under Floor Drains) Footing drains
around the foundation shall be a minimum 4" in diameter,
installed on the outside of the footings and shall be
properly surrounded with granular filter material. The
granular filter material shall be well graded from fine
to coarse to prevent washing of fines from the surrounding
soils into the drains while at the same time maintaining
adequate permeability for the flow of water into the
drains.
The grain size requirements for satisfactory filter mat-
erials are defined by the following formula:
D15 (Filter 4 D15 Filter
D85 (of Protected Soil D15 (of Protected Soil
Where D15 (Filter) = 15% size of filter material from
gradation curve
D15 (of Protected Soils)= 15% size of protected
soil from gradation curve
D85 (of Protected Soil) * 85% size of protected soil
from gradation curve
-4-
In order to assure adequate permeability of
the filter material, the minimum D15 size of filter
material shall be equal to the #60 sieve size (.0098).
The maximum permissible opening between tiles
shall be no more than a the D85 size of the filter
material.
The drains shall be connected to a gravity
system discharging into the Village sewer system,
or shall be discharged into a sump pit in the basement
of the building, with a sump pump and float valve to
discharge the water either into the flood plain or into
the Village storm sewers if and when permitted by Village
ordinances.
Under floor drains shall be a minimum 4" in diameter
and there shall be a minimum of 10 feet of drain for
every 100 square feet of floor area. The drains shall be
properly surrounded with a minimum of 6 inches of granular
filter material as defined above for the footing drains.
In addition, a minimum of 4" of approved granular material
shall be placed beneath the slab and shall connect to the
under drains to facilitate seepage to the drain tile.
22.905 Penalty.) Any person, firm or corporation
violating any of the provisions of this article shall
be fined not less than five dollars nor more than five
hundred dollars for each offense, and a separate offense
shall be deemed committed on each day during or on which
a violation occurs or continues.
-5-
Passed this 3rd day of August ! 1964.
APPROVED:
�l C.
Village President
Attest:
Village Clerk
Published: August 13, 1964 in the Deerfield Review
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