For the purpose of this Code, the terms used herein are defined as follows:
ADMINISTRATIVE OFFICER
The official appointed by the Monroe County Board of Commissioners to administer the provisions of this Code, or a duly appointed representative(s).
ALLEY
A minor way used primarily for vehicular service access to the rear or side of properties otherwise abutting on a street.
AREA, GROSS
The entire area within the boundary lines of the territory proposed for subdivision, including the area to be dedicated for street and alley rights-of-way and public use.
AREA, NET
The entire area within the boundary lines of the territory proposed for subdivision, less the area to be dedicated for street and alley rights-of-way and public use.
BLOCK
An area of land entirely bounded by streets, highways, or physical barriers (except alleys, pedestrian ways, or exterior boundaries of a subdivision unless exterior boundary is a street or highway), or a combination of streets, public parks, cemeteries, railroad rights-of-way, shorelines or waterways, or corporate boundary lines.
BUILDING
Any structure, whether temporary, semi-permanent, or permanent, designed or intended for the support, enclosure, shelter or protection of persons or property.
BUILDING LINE
See Setback Line.
CLEANING
Any activity which removes the natural vegetative ground cover.
CLUSTER DEVELOPMENT
A subdivision planned and constructed so as to group housing units into relatively dense patterns while providing a unified network of open space and wooded areas, and meeting the requirements of this Code and the Zoning Code of Monroe County.
COMPREHENSIVE PLAN
The plan or any portion thereof adopted by the County Board of Commissioners for the coordinated development of the County, including among other things; plans and programs regarding the location, character and extent of highways, transportation routes, bridges, public buildings or uses, utilities, schools, residential, commercial or industrial land uses, parks, forests, dams, drainage facilities and projects affecting the conservation of natural resources of the County.
COUNTY DEVELOPMENT POLICIES MANUAL
That document setting forth the development policies of Monroe County, intended to be used by County agencies in the review of development projects, and endorsed for that purpose by resolution of the County Board.
COUNTY ENGINEER
A licensed professional engineer designated by the County Board to conduct business or perform defined professional engineering services for the County.
CRITICAL STORM EVENT
The critical storm event shall be considered as the one hundred (100) year, twenty-four (24) hour event unless engineering evaluation shows that the rainfall for an event of lesser duration creates more runoff for any specific watershed. The storm event, including, but not limited to, rainfall amount and duration, that the County in consultation with the applicant's Licensed Professional Engineer during the preliminary plat stage, will be required for calculations pertaining to the development of stormwater and erosion control plans.
DENSITY, GROSS
The total number of dwelling units divided by the total project area, expressed as gross dwelling units.
DENSITY, NET
The total number of dwelling units divided by the total project area less area for street rights-of-way.
DESIGN
The arrangement of uses on the land and the arrangement of easements, lots, and rights-of-way, including material, alignment, grade and width of these elements.
DETENTION BASIN
A facility natural or man-made, that provides temporary storage for surface run-off accompanied by its controlled release.
DRAINAGE PLAN
A plan, including engineering drawings and supporting calculations, which describes the existing stormwater drainage system and environmental features, including grading, as well as proposed alterations or changes to the drainage system and environment of the property.
DRAINAGEWAY
A watercourse, gully, dry stream, creek, or ditch which carries stormwater sewers, or which serves the purpose of draining water from the lands adjacent to such watercourse, gully, dry stream, creek, or ditch.
EASEMENT
A right to use another person’s property, but only for a limited and specifically named purpose.
FILING DATE
The beginning or starting date that commences after the applicant has filed the last item of required data or information and has paid the necessary fee(s), for review by the Planning Commission.
FLOOD PLAIN
That land adjacent to a body of water with ground surface elevations at or below the base flood or the one hundred (100) year frequency flood elevation which is subject to inundation. The flood plain as designated by the Federal Emergency Management Agency (FEMA) is also known as the Special Flood Hazard Area (SFHA). This area is the collective combination of the regulatory floodway and the flood fringe.
IMPROVEMENT
Refers to site grading, street work and utilities (including water, sewer, electric, gas, and stormwater), to be installed or agreed to be installed by the subdivider on land to be used for public or private streets, and easements or other purposes as are necessary for the general use of lot owners in the subdivision. Improvement includes the furnishing of all materials, equipment, work and services such as engineering, staking and supervision, and construction of all the improvements required in Article VI of this Code or any other improvements that may be provided by the subdivider. All of such materials, equipment and services shall be provided at the subdivider's cost and expense, although the subdivider may enter into a contract with individuals and firms to complete such improvements, and the improvements shall be subject to the final approval of the Administrative Officer.
IMPROVEMENT PLAN
The engineering plans showing types of materials and construction details for the physical structures and facilities to be installed both in or in conjunction with the subdivision.
LOT
A parcel of land intended to be separately owned, rented, developed or otherwise used as a unit.
LOT, BUTT
A lot at the end of a block and located between two (2) corner lots.
LOT, CORNER
A lot abutting upon two (2) or more streets at their intersection.
LOT DEPTH
The mean horizontal distance between the front and the rear lot lines measured in the general direction of the side lot lines.
LOT, INTERIOR
A lot whose side lines do not abut upon any street.
LOT, THROUGH
A lot having frontage of two (2) parallel or approximately parallel streets.
LOT WIDTH
The mean horizontal width of the lot measured at right angle to the general direction of the side lot lines.
MASTER DEVELOPMENT PLAN
A combination of maps, drawings, site plans, charts and supportive narrative material that portrays total development to be achieved in the overall project area; which provides sufficiently detailed information to both illustrate and describe the intended character and configuration of development to be accomplished.
METES AND BOUNDS DESCRIPTION
A description of real property which is not described by reference to a lot or block shown on a map, but is described by starting at a known point and describing the bearings and distances of the lines forming the boundaries of the property or delineates a fractional portion of a section, lot or area by described lines or portions thereof.
MODIFIED RATIONAL METHOD
As described in the Illinois Department of Transportation's "Drainage Manual" is based on the principal that the maximum rate of runoff from a given drainage area occurs at that point in time when all parts of the watershed are contributing to the flow. The rainfall generating the peak flow is assumed to be of uniform intensity of the entire watershed with a rainfall duration equal to the time of concentration.
ONE HUNDRED YEAR EVENT
A rainfall, runoff, or flood event having a one (1) percent chance of occurring in any given year. A twenty-four (24) hour storm duration is assumed unless otherwise noted.
OWNER
A person having sufficient proprietary interest in the land sought to be subdivided to commence and maintain proceedings to subdivide the same under these regulations.
PARKING LANE
An auxiliary lane of a street and primarily used for vehicular parking.
PERFORMANCE GUARANTEE OR BOND
A surety issued by an insurance company licensed to do business in Illinois and approved by the County Board to guarantee installation of any improvements.
PERSON
Any agent, individual, firm, association, partnership, corporation, syndicate or trust.
PLANNED UNIT DEVELOPMENT (PUD)
A planned unit development is a comprehensively planned development containing residential, commercial, industrial, or other land uses on an area of land under continuing unified control. A planned unit development may contain a single type of land use or combination of land uses provided that such development is reviewed, evaluated and approved by the County Board and satisfies the requirements contained herein.
PLANNING COMMISSION
The Planning Commission of Monroe County, Illinois.
PLAT
The maps, drawings, charts, and other documents complying with all applicable provisions of this Code which constitute the plan for subdivision.
PLAT, FINAL or FINAL DEVELOPMENT PLAT
The final engineering and architectural detail maps, drawings, and supporting material on which the developer’s plan of the project area is presented and, if approved, will be submitted to the County Recorder of Deeds for recording and to the Office of Mapping and Platting for filing.
PLAT, PRELIMINARY or PRELIMINARY DEVELOPMENT PLAT
Preliminary engineering and architectural maps, drawings, charts and supportive material indicating the proposed layout of the project area.
PROJECT AREA
That territory intended to be subdivided or developed, and portrayed and defined in the Preliminary and Final Plats.
RE-SUBDIVISION
See Subdivision.
RETENTION
A facility natural or man-made, that provides permanent or long-term storage of surface run-off accompanied by a low release rate.
RETENTION BASIN
A facility, designed to completely retain a specified amount of stormwater runoff without release except by means of evaporation, infiltration, emergency bypass or pumping.
RIGHT-OF-WAY (ROW)
A strip or parcel of land over which the owner, by dedication or otherwise, has granted or reserved the right use for streets, alleys or other public ways.
ROADBED
The graded portion of a street upon which the base course, surface course, shoulders and median are constructed.
ROADWAY
The entire improved portion of the street, including shoulders, parking lanes, travelways, curbs and gutters which lies between the right-of-way lines.
SETBACK LINE
A line parallel to the front, side or rear lot line establishing the minimum space to be provided as the front, side, or rear yard.
SINKHOLE
Any natural depression formed as a result of subsurface removal of soil or rock materials and causing the formation of a collapse feature that exhibits internal drainage. The existence of a sinkhole shall be indicated by the uppermost closed depression contour lines on the USGS seven and one-half (7 1/2) minute quadrangle topographic maps or as determined by field investigations.
SOIL AND WATER CONSERVATION
The Monroe County Soil and Water Conservation District.
SPECIFICATIONS
The Standard Specifications for Road and Bridge Construction, prepared by the Illinois Department of Transportation, as adopted and amended by the Department, which are in effect at the time the subdivision is being constructed, and the related “Highway Standards”. Any term in such specifications referring to State Departments or officials or to persons contracting with the State shall be deemed to refer to applicable departments, officials, or persons in the County of Monroe, and the term “contractor” shall specifically apply to the subdivider who is responsible for installing all of the improvements required in Article VI of this Code even though the subdivider may enter into agreements for such installing by other persons, firms, or corporations. “Engineer” shall be deemed to refer to the County Engineer.
STREET
A public or private way for the purpose of vehicular travel. The term includes all facilities which normally occur within the right-of-way. It shall also include such other designations for a street as a highway, thoroughfare, parkway, throughway, road, pike, avenue, boulevard, lane, place, drive, court or as otherwise designated, but excluding an alley or a way for pedestrian use only.
STREET, AREA SERVICE HIGHWAY
Area service highways interconnect collectors and land access streets with the principal system and vice versa, bring all developed areas within a reasonable distance of principal streets, connect and provide direct access to major traffic generators, provide secondary service to small communities, may provide access to abutting property, and have a medium volume design capacity and travel speeds.
STREET, BUTT OR STUB
A street that is temporarily terminated, but is planned for future continuations.
STREET, COLLECTOR
Collector streets interconnect the principal street system with land access streets; provide internal circulation within residential, commercial, and industrial areas; provide access to abutting properties; and have a moderate volume design capacity and travel speeds.
STREET, CUL-DE-SAC
A short, land-access street, having only one (1) end open for vehicular traffic, and the other permanently terminated by a turn-around for vehicles.
STREET, DEAD-END
Land access streets similar to cul-de-sacs, except that they provide no turn-around circle at their closed end, and are not permitted in any proposed subdivision.
STREET, LAND ACCESS
Land access streets provide access to abutting properties, having a relatively short travel distance, and have a low volume design capacity and travel speeds.
STREET, LOOPED
Land access streets having two (2) open ends, each end generally connecting with the same street, no other streets intersecting between its ends, and property fronts on both sides of the street.
STREET, MARGINAL ACCESS OR SERVICE ROAD
A land access street parallel and adjacent to area service highways providing access to abutting properties.
STRUCTURE
Anything constructed which requires permanent or temporary location on the ground or is attached to something having a permanent or temporary location on the ground.
SUBDIVIDE
See “Subdivision”.
SUBDIVIDER
Any person, dividing or proposing to divide land in a manner that constitutes a subdivision as herein defined.
SUBDIVISION
For the purpose of these regulations, a subdivision is either:
(A) 
The division of land into two (2) or more lots, sites, or parcels or
(B) 
Establishment or dedication of, a road, highway, street or alley through a tract of land regardless of its size.
The term “subdivision” shall also include all re-subdivision of land or lots.
SUBDIVISION, MINOR
A division of land into two (2), but not more than six (6) lots, all of which front upon an existing street, not involving any new streets or other rights-of-way, easements, improvements, or other provisions for public areas and facilities.
TRAVELWAY
That portion of a street used for the movement of vehicles, exclusive of shoulders and auxiliary lanes.
TWO-YEAR EVENT
A runoff, rainfall, or flood event having a fifty (50) percent chance of occurring in any given year. A twenty-four (24) hour storm duration is assumed unless otherwise noted.
WATERSHED
All land area drained by, or contributing water to, the same stream, creek, ditch, lake, marsh, stormwater facility, groundwater or depressional area.
WET BASIN
A detention basin designed to maintain a permanent pool of water after the temporary storage of stormwater runoff.
WETLANDS
Wetlands are defined by regulation as those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. For general, but not inclusive locations of designated wetlands, refer to mapping prepared jointly by the U.S. Department of Interior, Fish and Wildlife Service and the Illinois Department of Natural Resources, Office of Resource Conservation; National Wetlands Inventory Mapping, 1987.
ZONING ADMINISTRATOR
The officer, or person, designated by the County Board of Commissioners and charged with the responsibility of administering zoning standards.
ZONING CODE
The Zoning Code of Monroe County, Illinois.