[Adopted 4-28-1992]
A.
Driveway grades shall not exceed 15% at any point
along its entire length. In addition, the driveway grade shall not
exceed 8% for a distance of 12 feet from the edge of road or within
12 feet of the entrance of a private garage.
B.
The driveway entrance profile shall be provided with
a vertical curve and shall conform to the typical driveway profiles
and conditions shown in Figure No. 1.[1]
[1]
Editor's Note: Figure No. 1, which shows the engineering design with which the applicant shall comply, is included at the end of this chapter.
C.
The installation of a culvert will be required in
the event that the existing flow line or ditch cannot be crossed with
a shallow dish-type gutter. The culvert will be constructed under
the driveway at the gutter line of the road in such a manner as not
to interfere with the flow of water in road drainage swales or ditches
along the public road. The culvert pipe shall have a minimum diameter
of 15 inches and shall be sized based on calculated runoff and shall
be approved by the Township Engineer.
D.
Driveways shall be constructed with a finished wearing
surface of a four-inch minimum thickness of gravel or stone of the
type generally acceptable for residential driveway construction. Driveways
shall be paved within 25 feet of the street in accordance with the
following specifications:
E.
Side slopes of driveways in earth shall be topsoiled,
seeded, fertilized and mulched to prevent erosion. Side slopes shall
not exceed 2 to 1. Cut slopes in rock shall not exceed 1 to 4.
F.
Sight distances.
(1)
A driveway shall be located and designed to provide
sight distance in each direction along the township road in accordance
with the following table:
Speed Limit
(mph)
|
Minimum Sight Distance
(feet)
| |
---|---|---|
25
|
300
| |
30
|
350
| |
35
|
425
| |
40
|
475
| |
45
|
525
| |
50
|
600
|
(2)
The measurement of sight distance shall be from a
minimum of 15 feet behind the curbline or edge or shoulder of the
township road.
G.
Where a site occupies a corner of two intersecting
roads, no driveway shall be located within 25 feet of the point of
tangency of the existing or proposed right-of-way return of that site.
H.
A plot plan of the proposed driveway shall accompany a permit for road construction for approval by the Township Read Supervisor in accordance with § 88-1. Said plot plan shall include the following:
(2)
A design plan showing the following:
(a)
Driveway location, proposed center line elevations
every 50 feet along the center line and existing contours at two-foot
intervals for a distance 50 feet each side of the driveway center
line.
(b)
Edge of the existing road, type of roadway surface,
culverts, utility poles, storm drains, swales or ditches within the
right-of-way and within the subject property.
(c)
Right-of-way line.
(d)
Location of the existing or proposed septic
system, dwelling and garage.
(e)
A center line profile of the existing and proposed
grade along the entire length of the driveway if the slope of the
lot would require a driveway with a maximum grade of 15%.
(f)
Proposed surface of the driveway.
(g)
Proposed storm drainage improvements showing
the type of storm drain to be constructed at the driveway entrance,
i.e., dish-type gutter, pipe or culvert. Sizes of pipes, culverts
and gutters, grades, construction details and any other information
deemed necessary to the proper analysis of the installation shall
be shown.
(3)
Cross sections of the driveway shall be required if
the proposed construction will result in excavations and/or fills
in excess of four feet. Cross sections shall be provided at the edge
of road, at a point 15 feet from the edge of road and at twenty-five-foot
intervals along the driveway. Cross sections shall be prepared at
a vertical and horizontal scale of one inch equals five feet and should
show the existing and proposed grades, slopes of the embankment and
proposed stabilization of slopes. Side slopes shall be topsoiled,
seeded, fertilized and mulched to prevent erosion. If banks exceed
six feet in height, stabilizing materials shall be planted.
I.
Driveway entrance shall not exceed 20 feet in width
without approval of the Township Committee.
J.
Any applicant for a permit to construct a residential driveway, curbing or other structure intersecting with or entering upon a public road or street in the Township of Hampton shall comply with the requirements of § 88-4 of this chapter with respect to cash deposits and performance guarantees and fee requirements.
[Added 8-30-2005 by Ord. No. 2005-8A]