Construct sidewalks in accordance to the sidewalk cross-section
as detailed in Figure 11.2 as follows:
A. Materials: Refer to Section
12.2, Street Construction, A, Materials.
B. Base Course: Compacted depth of six inches.
C. Base Course Penetration: Apply a minimum rate of 0.75 gallons per
square yard. Allow application to stand for twenty-four (24) hours
without covering, after which it may receive a light covering of course
sand.
D. Surface Course: Compacted depth of two (2) inches, I-2 bituminous
concrete in conformance with Section M.03.01 of the reference standard.
E. Observe same timing of successive steps, use limitations, and surface
preparations as outlined for steps of road construction.
Within ten feet of abutting property, limit changes to existing
grade to a slope of 2:1. Provide retaining structures to contain slopes
that exceed the 2:1 ratio. Rip-rap or other retaining walls shall
be sloped back at an angle of no more steep than one foot horizontal
to three feet vertical and constructed of boulders with at least three
sharp angular flat or cut surfaces. The installation of rip rap walls
shall be in conformance with accepted structural engineering practices.
The construction of such shall be inspected and certified by means
of a signed and stamped letter from a Rhode Island Registered Professional
Engineer.
All soil erosion and sediment control measures required by these
Regulations shall be constructed in accordance with the standards
and procedures set forth in the 1989 Rhode Island Soil Erosion and
Sediment Control Handbook, as may be amended from time to time.
Said handbook is adopted as an Appendix to these Regulations
and is available for review from the Administrative Officer.
A common private way in a residential compound shall have a right-of-way width between property lines of not less than twenty-four (24) feet and a travel way width of no less than twelve (12) feet. A travel way is defined as that portion of a right-of-way that is actually used for vehicular travel. The Planning Commission may require additional right-of-way or travel way widths if conditions warrant for reasons of public health or safety. Notwithstanding any other provision of these Regulations, the travel way within a residential compound shall have no sidewalks and shall have a pervious surface composed of a two (2) inch layer of crushed stone [one-half (1/2) inch to two (2) inch crushed stone] on top of a normal base course as required by Section
12.2, Street Construction Standards. Adequate drainage appurtenances are required to prevent washout and excessive erosion. In addition, a turn-around or cul-de-sac may be required by the Commission if conditions warrant.