Minimum improvements and construction standards required of all subdivisions shall be as set forth in this article, and as listed in Table 4.[1] Where not set forth, they shall be in accordance with the prevailing standards as established by the Commission Engineer. Alternate improvement standards may be permitted if the Commission deems them equal or superior in performance characteristics to the specified improvements. Additional or higher-type improvements may be required in specific cases where the Commission believes it necessary to create conditions essential to the health, safety, morals and general welfare of the citizens of Vandergrift.
[1]
Editor's Note: See Table 4, Standards and Required Improvements for Streets, Curbs and Sidewalks, which is attached to this chapter.
Monuments shall be placed so that the scored or marked point shall coincide exactly with the intersection of the lines to be marked and shall be set so that the top of the monument or marker is level with the surface of the surrounding ground.
A. 
Monuments shall be readily visible and shall be set at the intersection of all lines forming angles in the boundary of the subdivision. Monuments may be of the following two types:
(1) 
Cut stone six inches by six inches by four feet long with a drill hole in the center.
(2) 
Concrete six inches by six inches by four feet long with a one-half-inch round brass pin in the center.
(3) 
The proposed replacement of any existing monuments shall be clearly indicated on the final plan.
B. 
Iron pin markers shall be set at the beginning and ending of all curves along street property lines, at all points where lot lines intersect curves, either front or rear; at all angles in property lines of lots; at all corner lots, markers shall consist of steel pipe at least 24 inches long and not less than 3/4 inch in diameter.
A. 
Basic improvement requirements.
(1) 
The provision of street pavement, curbs and sidewalks on all proposed or required public streets shall be as shown on Table 4.[1] All streets shall be graded, surfaced and improved to the grades and dimensions shown on plans, profiles and cross sections submitted by the subdividers and approved by the Commission.
[1]
Editor's Note: See Table 4, Standards and Required Improvements for Streets, Curbs and Sidewalks, which is attached to this chapter.
(2) 
Table 4 specifies those improvements which are the responsibility of the subdivider. In the case of major traffic streets, the State Highway Department or the Borough may provide additional improvements over and above those required to be installed by the subdivider.
Standards. Street signs shall be provided at the intersections of all streets. The type, height and design shall be approved by the Commission.
A. 
Provision of water supply. Where public water supply, in the opinion of the Commission, is reasonably accessible, the subdivision shall be provided with a complete water distribution system, including a connection for each lot and appropriately spaced fire hydrants, which shall not be greater than 1,000 feet apart. Where public water supply is not within reasonable distance, an alternate supply, approved by the State Department of Health, shall be furnished.
B. 
Location of waterlines. Where public waterlines are installed, all such waterlines shall be located between the curbline and the property line within any street right-of-way.
A. 
Public sewer system. Where the public sanitary sewer system, in the opinion of the Commission, is reasonably accessible, sanitary sewers shall be installed to adequately serve all lots with connections to the public system. The public sewer system shall conform with the following: Where lots cannot be served by the extension of an existing public sanitary sewer, the subdivider shall obtain approval of lot sizes as provided in Table 3.[1]
[1]
Editor's Note: See § 425-17, Residential design standards.
B. 
Capped sewers. Where the Borough has a plan for extending the public sanitary sewer system into an area that is being subdivided, and it is reasonably expected that the area will be served by the public system within a period of five years, capped sewers shall be installed to adequately serve all lots in the proposed subdivision as well as provisions set forth in Subsection A above.
C. 
Location of sewer lines. Whenever sanitary sewers are provided they shall be located as nearly to the center line of any street right-of-way as is reasonably possible, and all such sewer lines shall provide service connections to the property line of each and every lot, said service connections being properly capped.
D. 
Type of sewer system. No combined sanitary and storm sewer system will be permitted.
E. 
Manholes. Sanitary and storm sewer manholes will be provided at all changes in grade and direction, and in no instance shall the distance between said manholes exceed 400 feet.
A. 
Provision of storm sewers. Storm sewers shall be installed when, in the opinion of the Commission, it is deemed necessary to provide adequate drainage for the subdivision.
B. 
Purpose of storm sewers. When storm sewers, culverts and related installations are provided, they shall be designed:
(1) 
To permit unimpeded flow of natural watercourses.
(2) 
To ensure adequate drainage of all low points along the line of streets.
(3) 
To intercept stormwater runoff along streets at intervals reasonably related to the extent and grade of the area drained and at all intersection streets.
C. 
Special problems. In the design of storm sewage installations, special consideration shall be given to avoidance of problems which may arise from concentration of stormwater runoff over adjacent properties.
D. 
Construction standards. All drainage structures, culverts, boxes, grates, etc., shall conform to the current specifications of the Pennsylvania Department of Highways, as approved by the Commission Engineer.
A. 
Power, telephone and community television antenna lines. All subdivisions shall have easements provided for the installation of power and telephone utility lines to serve each and every lot, and provision shall be made, when necessary, for the location of community television antenna lines to be installed in said easements.
B. 
Gas transmission lines. When any subdivider proposes to provide gas transmission lines within a subdivision, said gas transmission lines shall be installed between the curbline and the property line of any street right-of-way.
A. 
Methods to be followed. After approval of the preliminary plan, the subdivider shall install the required improvements under the supervision of the Commission Engineer. The subdivider may elect to carry out minimum improvements by any of the following methods:
(1) 
By installing the required improvements and obtaining from the Borough a certificate stating that all improvements have been installed in accordance with the standards and specifications contained in this article.
(2) 
By posting with the Commission a certified check or bond running to the Borough in an amount sufficient to cover the full cost of installing the required improvements as estimated by the Commission Engineer. In case of a bond filed, it shall also:
(a) 
Be with surety satisfactory to the Commission;
(b) 
Specify the time for the completion of the improvements and installations, such time to be satisfactory with the Commission.
B. 
Maintenance bond. In submitting the final plan to the Commission, the subdivider shall submit a maintenance bond to guarantee maintenance and repair of the streets in the subdivision for one year after the construction thereof has been approved by the Commission Engineer and acceptance of improvements has been consummated by the Borough.