Unless otherwise expressly stated, the following terms shall, for the purpose of this chapter, give explanation of the terms used for this chapter:
A. 
Words in the singular include the plural, and those in the plural include the singular.
B. 
Words used in the present tense include the future tense.
C. 
The words "person" or "subdivision" and "owner" include a corporation, unincorporated association and a partnership or other legal entity, as well as an individual.
D. 
The word "building" includes "structure" and shall be construed as if followed by the phrase "or part thereof."
E. 
The word "watercourse" includes "channel," "creek," "ditch," "dry run," "spring" and "stream."
F. 
The words "should" and "may" are permissive; the words "shall" and "will" are mandatory.
[Amended 3-16-1999 by Ord. No. 1094]
Other terms or words used herein shall be interpreted or defined as follows:
APPLICATION FOR DEVELOPMENT
Every application, whether preliminary, tentative or final, required to be filed and approved prior to start of construction or development, including but not limited to an application for a building permit, for the approval of a subdivision plat or plan or for the approval of a development plan.
BLOCK
An area bounded by existing or proposed streets.
BOROUGH
Borough of West Mifflin, Pennsylvania.
BOROUGH COUNCIL
The Borough Council of West Mifflin, Pennsylvania.
BOROUGH SECRETARY
The Borough Secretary of the Borough of West Mifflin, Pennsylvania.
BUILDING
Any structure, or part thereof, having enclosing walls and roofs, requiring a permanent location.
BUILDING LINE
A line parallel to the lot line, a distance therefrom as prescribed in this chapter for a required yard, and, where there is no required yard, then the lot line.
BUILDING SETBACK LINE
The line nearest the front of and across a lot establishing the minimum open space to be provided between the front line of buildings and structures and the front lot line.
CLEAR SIGHT TRIANGLE
An area of unobstructed vision at intersections defined by lines of sight between points at a distance 75 feet from the intersection of street center lines.
COMMON OPEN SPACE
A parcel or parcels of land or an area of water, or a combination of land and water, within a development site and designed and intended for the use or enjoyment of residents of a development, not including streets, off-street parking areas, and areas set aside for public facilities.
COMPLETION BOND
A bond in cash or with an approved surety company guaranteeing the satisfactory completion of the improvements to land in accordance with this chapter.
COUNTY
The County of Allegheny, Commonwealth of Pennsylvania.
COUNTY PLANNING COMMISSION
The Planning Commission of Allegheny County.
CROSSWALK (INTERIOR WALK)
A publicly or privately owned right-of-way for pedestrian use, extending from a street into a block or across a block to another street.
CUT
An excavation; the difference in vertical elevation between a point on the surface of original ground and a point on the final grade; the material removed in excavation.
DEVELOPER
Any landowner, agent of such landowner or tenant with the permission of such landowner who makes or causes to be made a subdivision of land or a land development.
DEVELOPMENT PLAN
The provisions for development, including a planned residential development, a plat of subdivision, all covenants relating to use, location and bulk of buildings and other structures, intensity of use or density of development, streets, ways and parking facilities, common open space and public facilities. The phrase "provisions of development plan," when used in this chapter, shall mean the written and graphic materials referred to in this definition.
DRIVEWAY
An improved surface for vehicular circulation or access on a lot or parcel of land.
DWELLING UNIT
A building or portion thereof with exclusive culinary and sanitary facilities designed for occupancy by one person or one family (household). It may be located in a dwelling or apartment hotel. A portable or stationary trailer, shack, or similar makeshift abode shall not be interpreted to be a dwelling unit.
EASEMENT
A right-of-way granted, but not dedicated, for limited use of private land for a public or quasi-public purpose, and within which the owner of the property shall not erect any permanent structures but shall have the right to make any other use of the land which is not inconsistent with the rights of the grantee.
ENGINEER
A licensed professional engineer registered as such in the Commonwealth of Pennsylvania.
EROSION
The removal of surface materials by the action of natural elements.
EXCAVATION
Any act by which earth, sand, gravel, rock or any other similar material is dug into, cut, quarried, uncovered, removed, displaced, relocated or bulldozed and shall include the conditions resulting therefrom.
FILL
Any act by which earth, sand, gravel, rock or any other material is placed, pushed, dumped, pulled, transported or moved to a new location above the natural surface of the ground or on top of the stripped surface and shall include the conditions resulting therefrom; the difference in elevation between a point on the original ground and a designated point of higher elevation on the final grade; the material used to make a fill.
FLOODPLAIN
The area along a natural watercourse which is periodically overflowed by water therefrom.
IMPROVEMENTS TO LAND
A construction or installation of any of the following: streets, gutters, culverts, sidewalks, storm sewers, water drainage facilities, utilities (gas, electric, telephone services), water systems, fire hydrants, sanitary sewers, septic tanks, street signs, streetlights, and including cuts and/or fills.
LAND DEVELOPMENT
Any of the following activities:
A. 
The improvement of one lot or two or more contiguous lots, tracts or parcels of land for any purpose involving:
(1) 
A group of two or more residential or nonresidential buildings, whether proposed initially or cumulatively, or a single nonresidential building on a lot or lots regardless of the number of occupants or tenure; or
(2) 
The division or allocation of land or space, whether initially or cumulatively, between or among two or more existing or prospective occupants by means of, or for the purpose of, streets, common areas, leaseholds, condominiums, building groups or other features.
B. 
A subdivision of land.
C. 
"Land development" does not include development which involves:
(1) 
The conversion of an existing single-family detached dwelling or single-family semidetached dwelling into not more than three residential units, unless such units are intended to be a condominium;
(2) 
The addition of an accessory building, including farm building, on a lot or lots subordinate to an existing principal building; or
(3) 
The addition or conversion of buildings or rides within the confines of an enterprise which would be considered an amusement park. For the purposes of this subsection, an "amusement park" is defined as a tract or area used principally as a location for permanent amusement structures or rides. This exclusion shall not apply to newly acquired acreage by an amusement park until initial plans for the expanded area have been approved by the proper authorities.
LANDOWNER
The legal or beneficial owner or owners of land, including the holder of an option or contract to purchase (whether or not such option or contract is subject to any condition), a lessee having a remaining term of not less than 40 years, or other person having a proprietary interest in land, shall be deemed to be a landowner for the purposes of this chapter.
LOT
A designated parcel, tract or area of land established by a plat or otherwise as permitted by law and to be used, developed or built upon as a unit.
MARKER
A metal pipe or pin of at least one-half-inch diameter and at least 24 inches in length.
MOBILE HOME
A transportable, single-family dwelling intended for permanent occupancy, contained in one unit or in two or more units designed to be joined into one integral unit capable of again being separated for repeated towing, which arrives at a site complete and ready for occupancy except for minor and incidental unpacking and assembly operations, and constructed so that it may be used without a permanent foundation.
MOBILE HOME LOT
A parcel of land in a mobile home park, improved with the necessary utility connections and other appurtenances necessary for the erection thereon of a single mobile home.
MOBILE HOME PARK
A parcel or contiguous parcels of land which have been so designated and improved that they contain two or more mobile home lots for the placement thereon of mobile homes.
MONUMENT
A stone or concrete monument with a flat top at least four inches in diameter or square, containing a copper or brass dowel (plug), and at least 24 inches in length. The bottom, sides or radius should be at least two inches greater than the top, to minimize movements caused by frost.
MUNICIPAL AUTHORITY
A body politic and corporate created pursuant to the Act of May 2, 1945 (P.L. 382, No. 164), known as the "Municipality Authorities Act of 1945."[1]
PLAN, FINAL
A complete and exact map or plan of a subdivision or land development (and including all required supplementary data), prepared for official recording as required by statute, to define property rights and proposed streets and other improvements.
PLAN, MAJOR STREET
That element of the Official Plan, as adopted, which shall show the general location, alignment, and dimensions and the identification and classification of existing and proposed streets, highways, and other thoroughfares.
PLANNING COMMISSION or BOROUGH PLANNING COMMISSION
The duly authorized planning agency of the Borough of West Mifflin, whether a planning commission, a planning department headed by a director of planning, or both, or a committee of Council in lieu thereof, as authorized and designated by Council and assigned to exercise the powers and duties conferred by the Pennsylvania Municipalities Planning Code.[2]
PLAN, OFFICIAL
The long-range Comprehensive Plan for the Steel Valley District and/or Comprehensive Development Plan (Master Plan) and/or future land use plan and/or ultimate right-of-way plan and/or Official Map or other such plans and ordinances, or portions thereof, as may be adopted, pursuant to statute, for the area of the Borough in which the subdivision or land development will be located.
PLAN OF RECORD
The copy of the final plan which contains the required original endorsement and which is intended to be recorded with the County Recorder of Deeds.
PLAN, PRELIMINARY
A tentative map or plan of a subdivision or land development (and including all required supplementary data), in lesser detail than a final plan, showing approximate proposed street and lot layout as a basis for consideration prior to preparation of a final plan. Said plan shall be prepared by an engineer, architect, landscape architect or surveyor registered in the Commonwealth of Pennsylvania.
PUBLIC GROUNDS
Includes:
A. 
Parks, playgrounds, trails, paths and other recreational areas and other public areas;
B. 
Sites for schools, sewage treatment, refuse disposal and other publicly owned or operated facilities; and
C. 
Publicly owned or operated scenic and historic sites.
PUBLIC HEARING
A formal meeting held pursuant to public notice by the Borough Council or Planning Commission, intended to inform and obtain public comment, prior to taking action in accordance with this chapter.
PUBLIC MEETING
A forum held pursuant to notice under the Act of July 3, 1986 (P.L. 388, No. 84), known as the "Sunshine Act," 65 P.S. § 271 et seq.[3]
PUBLIC NOTICE
Notice published once each week for two successive weeks in a newspaper of general circulation in the Borough. Such notice shall state the time and place of the hearing and the particular nature of the matter to be considered at the hearing. The first publication shall not be more than 30 days and the second publication shall not be less than seven days from the date of the hearing.
RESUBDIVISION
Any replatting or resubdivision of land, limited to changes in lot lines on approved final plans or recorded plans as specified in this chapter. Other replattings shall be considered as constituting a new subdivision of land.
RUNOFF
The surface water discharge or rate of discharge of a given area or watershed after a fall of rain or snow that does not enter the soil but runs off the surface of the land.
SANITARY SEWAGE DISPOSAL, COMMUNITY
A sanitary sewage collection system, managed and operated by a public authority, in which sewage is carried from individual lots by a system of pipes to a temporary central treatment and disposal plant generally serving a neighborhood area.
SANITARY SEWAGE DISPOSAL, ON-SITE
Any structure designed to biochemically treat sanitary sewage within the boundaries of an individual lot or tract of lots.
SANITARY SEWAGE DISPOSAL, PUBLIC
A sanitary sewage collection system, managed and operated by a public authority, in which sewage is carried from individual lots by a system of pipes to a central treatment and disposal plant.
SEDIMENTATION
The process by which mineral or organic matter is accumulated or deposited by moving wind, water or gravity. Once this matter is deposited (or remains suspended in water), it is considered sediment.
SLOPE
The face of an embankment or cut section; any ground whose surface makes an angle with the plane of the horizon.
SOIL STABILIZATION
Chemical or structural treatment of a mass of soil to increase or maintain its stability or otherwise to improve its engineering properties.
STREETS and ALLEYS
The following definitions apply to private as well as public thoroughfares and shall all be developed and paved according to West Mifflin Borough's standards for construction:
A. 
STREETIncludes a street, avenue, boulevard, road, highway, freeway, parkway, lane, alley, viaduct or any other ways used or intended to be used by vehicular traffic or pedestrians, whether public or private.
B. 
ALLEYA minor way which is used primarily for vehicular service access to the back on the side of properties otherwise abutting on a street.
C. 
ARTERIAL STREET or MAJOR THOROUGHFARE or MAJOR STREETA principal or heavy traffic street of considerable continuity and used primarily as a traffic artery for intercommunication among large areas.
D. 
COLLECTOR STREETA street which carries traffic from minor streets to arterial or major streets, including the principal entrance streets of a residential development and streets for circulation within such a development.
E. 
CUL-DE-SAC or DEAD-END STREETA minor street with only one outlet. A cul-de-sac shall be measured from its intersection with a through street to the center of turnaround at the opposite end.
F. 
MARGINAL ACCESS STREETA minor street which is parallel and adjacent to an arterial street and which provides access to abutting properties and protection from through traffic.
G. 
MINOR STREETA street used primarily for access to the abutting properties.
H. 
STREET WIDTHThe shortest distance between the lines delineating the right-of-way of a street.
STRUCTURE
Any man-made object having an ascertainable stationary location on or in land or water, whether or not affixed to the land.
SUBDIVIDER
See "developer."
SUBDIVISION
The division or redivision of a lot, tract or parcel of land by any means into two or more lots, tracts, parcels or other divisions of land, including changes in existing lot lines for the purpose, whether immediate or future, of lease, partition by the court for distribution to heirs or devisees, transfer of ownership or building or lot development; provided, however, that the subdivision by lease of land for agricultural purposes into parcels of more than 10 acres, not involving any new street or easement of access or any residential dwelling, shall be exempted.
SUBSTANTIALLY COMPLETED
Where, in the judgment of the Borough Engineer, at least 90% (based on the cost of the required improvements for which financial security was posted pursuant to the requirements of this chapter) of those improvements required as a condition for final approval have been completed in accordance with the approved plan, so that the project will be able to be used, occupied or operated for its intended use.
SWALE
A man-made depression to direct and control surface water runoff.
WATERCOURSE
A permanent stream, intermittent stream, river, brook, creek, or a channel or ditch for water, whether natural or man-made.
WATER SURVEY
An inventory of the source, quantity, yield and use of groundwater and surface water resources within the Borough.
[1]
Editor's Note: The Municipality Authorities Act of 1945 (53 P.S. § 301 et seq.) was repealed by Act 22 of 2001 (June 19, 2001, P.L. 287, No. 22). See now the Municipality Authorities Act, 53 Pa.C.S.A. § 5601 et seq.
[2]
Editor's Note: See 53 P.S. § 10101 et seq.
[3]
Editor's Note: Said Act was repealed 10-15-1998 by P.L. 729, No. 93. See now 65 Pa.C.S.A. § 701 et seq.