[HISTORY: Adopted by the Board of Trustees
of the Village of Williamsville 8-3-1964. Amendments noted where applicable.]
GENERAL REFERENCES
Plan Commission — See Ch. 59.
A.
The map referenced in this chapter shall be known
as and may be cited as the "Official Map of Williamsville." The Official
Map of the Village of Williamsville, Illinois, includes the territory
within the corporate limits of Williamsville and all of the contiguous
unincorporated territory that is within 1 1/2 miles of the Village
limits.[1]
B.
The Official Map of the Village of Williamsville,
Illinois, dated April 20, 1964, is incorporated herein and is hereby
made a part of this chapter. Said Official Map, together with everything
shown thereon and all amendments thereto, shall be as much a part
of this chapter as though fully set forth and described herein.[2]
[2]
Editor's Note: The Official Map is on file in the Village
office.
The Official Map and accompanying text states
the minimum requirements of the Village of Williamsville for schools,
parks, playgrounds, public service facilities, public ways and the
kind and quality of materials for public service facilities, and the
standards required for drainage and sanitary sewers and collection
and treatment of sewage.
The minimum requirements for thoroughfares are
as follows:
A.
Minimum right-of-way widths. Right-of-way widths of
interstate and limited access routes and parkways shall be in accord
with federal and state standards.[1]
|
Type of Street
|
Minimum Width
(feet)
| |
|---|---|---|
|
Major thoroughfares
|
120 (or less as shown on the Official Map)
| |
|
Collector streets
|
60
| |
|
Minor streets
|
50
| |
|
Dead-end streets (culs-de-sac)
|
50
| |
|
Marginal access streets
|
50
| |
|
Alleys
|
20
| |
|
Pedestrianways
|
30
|
B.
Minimum pavement widths. Pavement in cul-de-sac turnabouts
in all developments shall have a minimum diameter of 80 feet with
a permanent-type edge.
|
Type of Street
|
Minimum Width (Back to Back of Curbs)
(feet)
| |
|---|---|---|
|
Major thoroughfares
|
In accordance with federal, state, county or
local plans
| |
|
Collector streets
|
40
| |
|
Minor streets
|
34
| |
|
Dead- end streets (culs-de-sac)
|
34
| |
|
Marginal access street
|
28
| |
|
Half street
|
1/2 the width of the proposed street but not
less than 14
| |
|
Alleys
|
20 in industrial and business areas
|
C.
Roadway surfacing. Pavements shall be installed in
accordance with the following standards:
(1)
Base course.
(a)
A gravel and crushed stone base course shall
have a compacted depth of six inches in residential areas and a compacted
depth of 12 inches in manufacturing and business areas. The construction
work shall be carried out in accordance with Section 29 of the Standard
Specifications for Road and Bridge Construction prepared by the State
of Illinois, Department of Public Works and Buildings, Division of
Highways, adopted January 2, 1958. The material used in the top three-inch
course of this base shall be either Grades 7, 8, 9, or 11 as specified
in Article 118.5(a) of said specifications. The material in the lower
portion of the base may be any of the above-named grades or it may
be a processed aggregate meeting the following graduation requirements:
(b)
If crushed gravel is used, the clay content
shall be not less than 5% nor more than 10%. Pit-run gravel will not
be satisfactory for use in the base construction.
(2)
Surfacing. When the above base is in place and accepted
by the Superintendent of County Highways and the Chairman of the Streets
and Alleys Committee of the Williamsville Board of Trustees, but not
until the same has been subjected to traffic, it shall be covered
with an A-3 type surface or better, and with construction to be in
accordance with Section 39 of the State Standard Specifications for
Road and Bridge Construction, dated January 2, 1958.
(3)
Notification of start of construction. The County
Superintendent of Highways, the Williams Township Highway Commissioner
and the Chairman of the Streets and Alleys Committee of the Williamsville
Board of Trustees shall be notified 48 hours in advance of the starting
date of any work on the street. The three aforementioned persons shall
be furnished with a list of sources of materials used on the job in
time to check the work. Materials to be used on the job may be subject
to inspection at the source or at the street construction site. Construction
work may be inspected at the time of construction and also following
construction. Random core borings may be made at the discretion of
the County Superintendent of Highways and the Chairman of the Streets
and Alleys Committee of the Williamsville Board of Trustees to assure
that construction of the pavement has been carried out in compliance
with the rules and regulations noted above.
D.
Curbs, gutters, sidewalks and storm systems.
(1)
Curbs and gutters. Curbs and gutters, where constructed,
shall be of portland cement concrete. They shall be not less than
18 inches in width and not less than six inches in thick where the
gutter abuts the street pavement. All curb corners shall have a minimum
radius of 16 feet.
(2)
Sidewalks. Sidewalks, where required, shall be of
portland cement concrete and shall be at least four feet wide and
four inches thick. Sidewalks shall be installed in accordance with
standards and specifications approved by the Plan Commission.
(3)
Storm sewer system. Stormwater inlets or outlets and
culverts shall be provided within the roadway improvements at points,
so as to facilitate adequate stormwater runoff from the street pavement.
The minimum design and specifications for such facility shall be obtained
from the Village Engineer.
A.
Public utility easements. The minimum requirements
for public utility easements are as follows:
(1)
Easements with a minimum width of 10 feet shall be
provided for any overhead or underground utility service, including
stormwater drainage where necessary in or over undedicated land. Insofar
as possible, easements shall be located to the rear of each lot and
along such lines as to provide continuity of alignment from block
to block.
(2)
Where a lot is traversed by a water drainageway or
stream, there shall be provided a drainage easement conforming substantially
with the lines of such watercourse. It shall include an additional
area, 10 feet wide, adjoining both edges of the established area that
has been affected by damaging floodwaters, as certified by the owner
of the lot or his engineer.
B.
Sanitary sewers.
(1)
Each property or lot shall connect with a public sanitary
sewer system, if accessible. Where the sewer is not yet accessible,
but is planned for extension to the aforementioned property or lot,
a sewer line and external connection or stub terminal shall be installed
outside of the curbline of the lot or property. If such capped sewer
system is provided, an interim on-site disposal system shall also
be provided.
(2)
A sewer shall be considered to be planned for extension
to a given area anytime after engineering studies have been authorized
and completed and the construction of facilities adequate to serve
the property or lot have been programmed for completion within a reasonable
time.
(3)
Where no public system is available, individual disposal
systems shall be provided on each lot. The absorption ability of the
soil, surface drainage and topography shall be the criteria for determining
whether or not the installation of individual septic tank disposal
systems are feasible. Feasibility shall be ascertained by the property
owner whenever individual systems are proposed. At least two percolation
tests shall be made on each lot at the approximate location of the
septic system absorption field. Such tests shall be performed in accord
with the requirements of the Plan Commission and the State of Illinois,
Department of Public Health. The results of these tests shall be certified
by a registered professional engineer and make known to the Plan Commission
and the State of Illinois, Department of Public Health. In the event
that individual systems are not feasible, a group sewage disposal
system may be required.
(4)
Individual sewage disposal systems shall consist of
a septic tank and tile absorption field or other approved sewage disposal
methods. All such systems shall be constructed in accordance with
the State of Illinois, Department of Public Health requirements. Sanitary
sewers shall not be used to carry storm- or surface water, subsurface
water or discharge from sump pumps. All principal sanitary sewer lines
shall be located within the street right-of-way or public easement.[1]
C.
Water. Where adequate public water supply is available,
as determined by the Plan Commission, the system of water mains shall
be not less than six inches in diameter.
A.
Park requirements. The minimum requirements for parks
are as follows:
|
Type
|
Minimum Area
(acres)
|
Service Radius
(miles)
| |
|---|---|---|---|
|
Neighborhood park
|
15 or more
|
1/4 to 1/2
| |
|
Village park
|
25 or more
|
1/2 to 1
| |
|
Community park
|
40
|
1 to several
|
B.
Schools. The minimum requirements for schools are
as follows:
|
Type
|
Minimum Area
(acres)
| |
|---|---|---|
|
Elementary school
|
5 and an additional acre for each 100 students
| |
|
Junior high school
|
10 and an additional acre for each 100 students
| |
|
Senior high school
|
15 and an additional acre for each 100 students
|
C.
Public service facilities. Sufficient area must be
provided for the placement of public service facilities. Any structures
that are not enclosed in a building shall be screened with plant material.
If any public service facility produces unusual noises, a thick planting
screen must be provided to help deaden the noise. If unusual hazards
exist, they must be completely surrounded by a chain link fence at
least seven feet in height. Public service facilities should be placed
as unobtrusively as possible in residential and business areas.
A.
The corporate authorities may initiate a revision
of the Official Map from time to time by requesting the Plan Commission
to prepare the necessary changes. The Plan Commission shall hold a
public hearing on the proposed amendment or change.
B.
Proper notice of such hearing, stating the time and
place thereof, shall be given by a newspaper of general circulation
in the county. The hearing shall be informal, but all persons desiring
to be heard in support of or opposition to the Official Map or amendment
shall be afforded such opportunity and may submit their statements
orally, in writing, or both. The hearing may be recessed to another
date if not concluded, if notice of the time and place thereof is
publicly announced at the hearing or is given by newspaper publication
not less than five days prior to the recessed hearing.
C.
Within 90 days after the conclusion of the hearing,
the corporate authorities, after consideration of the recommendation
of the Plan Commission and such information as shall have been derived
from the hearing, shall either adopt the Official Map or amendment
in whole or in part or reject the Official Map or amendment in whole
or in part. If adopted, the corporate authorities shall enact an ordinance
including the map or maps as hereinbefore provided.
A.
Recording. No map or plat of any subdivision may be
entitled to be recorded in the Sangamon County Recorder's office or
shall be valid unless the subdivision shown thereon provides for streets,
alleys, public ways, ways for public service facilities, storm- and
floodwater runoff channels and basins and public grounds, in conformity
with the requirements of the Official Map of Williamsville.
B.
Certificate of approval. When said map or plat of
subdivision does comply with the requirements of the Official Map
of Williamsville, a certificate of approval shall be issued by the
Williamsville Village Board of Trustees and attested by the Village
Clerk. This certificate shall be sufficient evidence of compliance
so that the Sangamon County Recorder of Deeds may accept the map or
plat for recording.
Any person who shall violate any of the provisions
of this Official Map chapter shall be deemed guilty of a misdemeanor
and, upon conviction thereof, shall be fined in any sum not to exceed
$750. Each day that a violation of this Official Map chapter continues
shall constitute a separate and distinct offense and shall be punishable
as such.
