A. 
The layout of any subdivision in the Borough of Munhall shall be in accordance with the Borough Comprehensive Plan and Chapter 440, Zoning. The type of development shall be appropriate for the location, and the street pattern shall tie in with the overall street and highway plan of the Borough.
B. 
Where a proposed park, playground or other public use shown on the master plan is located in whole or in part in a subdivision, the Planning Commission may require the dedication or reservation of such area within the subdivision in those cases in which the Planning Commission deems such requirements to be reasonable.
C. 
Land which the Planning Commission has found to be unsuitable for subdivision due to flooding, bad drainage, and other features likely to be harmful to the safety, welfare and general health of the future residents, and which the Planning Commission considers inappropriate for subdivision, shall not be subdivided unless adequate methods to eliminate these hazards are formulated by the developer and approved by the Borough Engineer and the Planning Commission.
A. 
The arrangement, character, extent, width, grade and location of all streets shall conform to the Borough's Comprehensive Plan and shall be considered in their relation to existing and planned streets, to topographical conditions, to public convenience and safety, and in their appropriate relation to the proposed uses of the land to be served by such streets. Where not shown on the Comprehensive Plan or on the Official Map of the Borough, the arrangement and other design standards of streets shall conform to the provisions found herein.
B. 
In general, all streets shall be continuous and in alignment with existing streets and shall compose a convenient system to ensure circulation of vehicular and pedestrian traffic, with the exception that local streets may be so laid out, including the use of loop streets and culs-de-sac, where made necessary by topographic conditions, and their use by through traffic will be discouraged.
C. 
Where a subdivision abuts or contains an existing or proposed major street, the Planning Commission may require marginal access streets in order to protect residential areas from heavy traffic and also to provide separation between local and through traffic.
D. 
New half or partial streets will not be permitted. Wherever a tract to be subdivided borders an existing half or partial street, the other part of the street shall be platted within such tract.
E. 
Culs-de-sac shall not exceed 600 feet in length, as measured from the center line of the intersecting street to the center of its circular turnaround, and shall furnish access to not more than 20 dwelling units.
F. 
The terminus of a cul-de-sac shall be a circular turnaround having a minimum radius to the outside edge of the paving or curb of 40 feet and a right-of-way having a minimum radius of 50 feet.
G. 
Every subdivision shall have access to a paved public street.
H. 
Where a railroad abuts or extends through any portion of a subdivision, provision shall be made for overpasses or underpasses acceptable to the Pennsylvania Public Utilities Commission; streets paralleling any railroad shall be separated therefrom by a buffer strip of at least 50 feet in depth, and if such buffer strip is composed of residential lots, such lots shall be at least 150 feet in depth.
I. 
Local streets are intended to serve primarily the abutting properties and shall be so designed as to discourage through traffic, for which purpose loop streets and culs-de-sac may be used.
J. 
Collector streets are intended to carry traffic from residential areas to major streets, county, state and federal highways.
K. 
Major streets are intended for use by heavy through traffic and as connections to and between county, state and federal highways and major urbanized areas.
L. 
Marginal access streets are intended to provide access by local traffic to properties adjoining major streets without interfering with through traffic.
M. 
Alleys are intended to provide secondary access to business and industrial properties for deliveries. Alleys may be permitted under special circumstances in residential areas but in no case shall an alley provide the only means of access to a lot.
N. 
Crosswalks are intended to provide pedestrian circulation through large blocks or in developments where it is desired to separate pedestrian from vehicular traffic.
O. 
Streets shall be laid out to intersect as nearly as possible at right angles; no street shall intersect another at less than 60°.
P. 
Intersections of more than two streets shall be avoided. Where this proves impossible, such intersections shall be designed with care for safety, and suitable curbs, barriers, signs and other devices may be required.
Q. 
Clear sight triangles whose adjacent and opposite sides shall each be measured 100 feet along street center line from their point of junction at all intersections; no buildings or obstruction to vision shall be permitted within such sight triangles unless clearly impossible because of existing topography.
R. 
Streets shall have a grade not to exceed 4% for a distance within 25 feet of the street right-of-way line at any intersection transverse.
S. 
Streets entering opposite sides of another street shall be laid out either directly opposite one another or else shall have a minimum offset of 150 feet between their center lines.
T. 
Intersections with major streets shall be located not less than 400 feet apart between their center lines.
U. 
Whenever street lines are deflected in excess of 5°, connection shall be by horizontal curves.
V. 
Alleys shall not be constructed in any new subdivision but may only be constructed when they are a natural continuation of an alley already partially open and in use, in which case they shall be ended within a continuing distance of 300 feet.
W. 
The proposed name of the subdivision and proposed street names shall not duplicate or too closely approximate, phonetically, the names of any other subdivision or street in the Borough of Munhall. Street names shall be subject to the approval of the Planning Commission.
[Amended 3-18-1993 by Ord. No. 1357; 6-16-1993 by Ord. No. 1361]
A. 
Width, grade alignment, construction and improvement for each street in a proposed subdivision shall conform to the standards established in the following table:
Minimum Improvement Standards for Public Ways
Major
Collector
Local
Marginal Access
Alley
Crosswalk
Residential Districts
Right-of-way width (feet)
90
60
50
40
20
10
Paving width (feet)
36
36
28
20
16
6
Business Districts
Right-of-way width (feet)
90
80
—
60
20
10
Paving width (feet)
44
40
—
36
20
—
Industrial Districts
Right-of-way width (feet)
—
60
50
40
20
10
Paving width (feet)
—
36
36
24
20
6
All Districts
Minimum sight distance (feet)
550
350
200
200
100
—
Minimum center-line radius (feet)
650
400
200
200
200
—
Maximum grade (percent)
7%
10%
12%
10%
12%
—
Minimum grade:
Without curbs (percent)
1%
1%
1%
1%
1%
—
With curbs (percent)
1%
1%
1%
1%
1%
—
B. 
The entire right-of-way of each street in a proposed subdivision shall be graded, and there shall be installed paving, drainage structures, curbs and gutters and sidewalks in accordance with the appropriate standards for the class of street, with the exception that the standards of the high-density residential area may be used in a low-density residential area.
C. 
Minimum curb or pavement-edge radii at street intersections shall be 25 feet for intersections of a local street with another local street or a local street with a collector street or a local street with an alley; 30 feet for other intersections, or such greater radius as is suitable to the specific intersection.
D. 
Where the grade of the street is above or below the grade of the adjacent land, walls or slopes shall be constructed in a manner satisfactory to the Borough Engineer and shall be sufficient to support the street or the adjacent land, as the case may be.
E. 
Where the grade of the street is three feet or more above the grade of the adjacent land, guardrails shall be built which shall be satisfactory to the Borough Engineer.
F. 
Street shoulders shall be constructed with suitable materials from roadway or structure excavation supplemented by additional suitable material, if directed, from borrow excavation; the entire shoulder area shall be uniformly and thoroughly compacted by rolling as directed by the Borough Engineer.
G. 
The outside edge of sidewalks shall be placed one foot from the street right-of-way lines; except for business streets, where the sidewalk shall occupy the full width between the curb and the street right-of-way lines.
H. 
Embankments at the sides of streets and cross sections of drainage ditches shall not exceed a maximum slope of one foot horizontally to one foot vertically in a cut section; and 1 1/2 feet horizontally to one foot vertically in a fill section; in special cases the Borough Engineer may require more rigid standards.
I. 
Means of ingress and egress for vehicles to and from each lot or parcel shall be shown on the plans for installation in accordance with existing Borough regulations for depressed curbs and driveways across sidewalks.
J. 
Bituminous or macadam streets shall crown at the center line to a slope of 1/4 inch to one foot; concrete streets shall crown at the center line to a slope of 1/8 inch per foot; alleys shall be dished to the center line at a slope of 1/4 inch per foot for bituminous or macadam paving and 1/8 inch per foot for concrete paving.
K. 
Standards for construction.
(1) 
All streets, curbs, sidewalks, sanitary sewers and storm drainage facilities shall be constructed conforming to and in accordance with the Standards for Construction Specifications, prepared by Planning Development Associates (January 1993).
(2) 
All streets, curbs, sidewalks, sanitary sewers and storm drainage facilities along Main Street from its intersection with Miller Avenue to its intersection with McKinley and Cambria Streets and along McWhinney Street from its intersection with Main Street to its intersection with Caroline Street shall be constructed conforming to and in accordance with Construction Standards prepared by John C. Laatsch and Associates, dated February 24, 1993.
A. 
Suitable drainage structures, culverts, storm sewers, ditches and related installations, shall be provided to ensure adequate drainage of all low points along the line of streets and to intervals reasonably related to the extent and grade of the area drained.
B. 
In the design of storm sewerage installations, special consideration shall be given to the avoidance of problems which may arise from concentration of stormwater over adjacent properties.
C. 
Where a natural watercourse is retained as a drainage channel, an appropriate right-of-way not less than 20 feet shall be provided.
D. 
Provision for storm drainage and the design and installation of drainage structures shall be acceptable to the Borough Engineer.
E. 
Drainage ditches or channels within street rights-of-way shall be installed with a consideration for traffic safety; no such ditch or channel shall be installed at an elevation more than three feet below the elevation of the adjacent street paving edge.
F. 
Drainage ditches or channels shall have a minimum gradient of 1%.
A. 
Land shall be suited to the purpose for which it is to be subdivided, whether for residential, business or industrial use.
B. 
Land unsuited for development which would entail hazards to life, health or property or would be uneconomic to provide with public services shall not be subdivided; steep areas having slopes of 25% or more and land subject to flooding shall not be subdivided unless such deficiencies can be eliminated.
C. 
Residential blocks shall have a maximum length of 1,600 feet and a minimum length of 500 feet; where a block exceeds 800 feet, a crosswalk shall be provided.
D. 
Business or industrial blocks shall be of such size and shape as may be suitable for their prospective use and shall provide sufficient space for off-street parking and loading.
E. 
The width of any block shall be sufficient to permit at least two tiers of lots of appropriate depth except where reverse frontage lots bordering a major street are used.
F. 
Lots shall be laid out and graded to provide positive drainage away from buildings.
G. 
Every lot shall abut on a proposed public street with the possible exception of suitably designed residential courts having acceptable means of access.
H. 
Side lot lines shall be substantially at right angles or radial to street right-of-way lines.
I. 
If remnants of land exist after subdividing they shall be suitably incorporated in existing or proposed lots or dedicated to public use if acceptable for such public use.
J. 
Double frontage lots are prohibited except where employed to prevent vehicular access to a major street.
K. 
Easements for public utilities having a minimum width of 15 feet shall be provided and shall be satisfactory to the agency providing such utility service. Whenever possible, utility easements shall extend along rear property lines.
L. 
Every lot shall have a grade not to exceed 16% within an area 60 feet wide and 60 feet deep measured from the street right-of-way line.
M. 
The building setback line in all districts shall be in accordance with the yard requirements as stated in Chapter 440, Zoning. The setback shall be measured from the required right-of-way line of any existing or proposed street to the front line of the permitted buildable area.
A. 
In reviewing subdivision plats, the Planning Commission shall consider the adequacy of existing or proposed community facilities to serve the additional dwellings proposed by the subdivision.
B. 
Subdividers shall give earnest consideration to the providing of areas for community facilities normally considered desirable for serving residential areas, such as parks, playgrounds, athletic fields, schools, churches, libraries, shopping and local business centers.
C. 
Areas provided or reserved for such community facilities should be adequate to provide for building sites, play areas, landscaping and off-street parking as may be necessary for the use proposed.
D. 
Subdividers shall confer with the Planning Commission prior to preparation of final plats in order to develop suitable plans for providing community facilities.
E. 
Areas for community facilities may be provided through dedication or sale to a public agency or gift or sale to a private agency, including a property owners' association. In all cases, suitable arrangements shall be made fixing responsibility for sponsorship and continued maintenance of community facilities.
F. 
Subdivisions shall conform to the Borough's plan of parks, recreation areas and other community facilities.
A. 
Where connection with the sanitary sewer system of the Borough is practicable, the owner, by special arrangement with the Council, shall install sanitary sewers and sewer laterals in conformity with Borough specifications for sanitary sewer construction before streets and roads shown on the plans are constructed. All gas, water, electric, and other mains, pipes and conduits, together with all service connections or laterals, shall be laid, when the need for the same can be reasonably anticipated, before the streets and roads shown on the plans are constructed.
B. 
Every lot in a subdivision shall be capable of being served by electric lines, and easements acceptable to the electric company shall be provided.
C. 
Where gaslines are proposed to be installed, easements acceptable to the gas company shall be provided.
D. 
Where waterlines are proposed to be installed, easements acceptable to the water company shall be provided.
E. 
To the fullest extent possible, underground utility lines located in streets shall not be installed beneath existing or proposed paved areas.
F. 
Where bridges, dams and/or other structures are placed on streams with a drainage area of 1/2 square mile or larger, application for a permit shall be made to Pennsylvania Department of Environmental Protection, Bureau of Water Control, Harrisburg, Pennsylvania, by the person in interest, and a copy of such permit filed with the Borough Engineer.
A. 
Concrete monuments of a type and construction approved by the Borough Engineer and with a minimum size of four inches by four inches by three feet shall be installed in subdivisions in street rights-of-way five feet from street lines at intersection of street lines, at points of curve and tangency in street lines, at changes in alignment of street lines, and at intersections of subdivision boundary lines with street lines, as may be required by the Borough Engineer.
B. 
Monuments consisting of steel pipes, bars or rods measuring at least one inch in diameter and three feet long and approved by the Borough Engineer shall be installed in subdivisions at intersections of all lines forming angles in the boundaries of subdivisions and at points where lot lines intersect curved property lines, either front or rear, as may be required by the Borough Engineer.
C. 
Monuments shall be scored on the top to coincide exactly with the intersection of the lines to be marked and shall be set so that the top of the monument is level with the surface of the surrounding ground as finally graded.
A street sign having a metal nameplate shall be installed at every street intersection and shall conform to existing Borough standards.