Chapter 16.20
SUBDIVISION DESIGN STANDARDS
Sections:
16.20.010 Provisions of the comprehensive plan and zoning regulations.
16.20.050 Easement provisions.
16.20.060 Fire protection standards.
16.20.010 Provisions of the comprehensive plan and zoning regulations.
All subdivisions shall conform to the design standards of this code, in addition to the comprehensive plan, other adopted city standards and all zoning regulations in effect at the time any preliminary plat of a subdivision is submitted for approval. Lots shall be of sufficient area, width, and length to satisfy zoning requirements. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)
16.20.020 Design – Streets.
The design for any streets within a subdivision shall meet the minimum requirements as stated in the Entiat Standard Plan Guidebook and EMC Title 19. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)
16.20.030 Blocks.
(1) In general, blocks shall be as long as is reasonable and consistent with the topography and the needs for convenient access, circulation, control, safety of street traffic, and the type of land use proposed. For residential subdivisions, the block length ordinarily should not exceed 800 feet or be less than 400 feet.
(2) Except for reverse frontage parcels, the width of blocks shall ordinarily be sufficient to allow for two tiers of lots of depth consistent with the type of land use proposed. This width should not be less than the sum of two lots with the minimum lot depth required by the zoning code. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)
16.20.040 Lot design.
(1) Every lot shall be provided with satisfactory access by a public street connecting to an existing public street, except as provided in Chapter 19.08 EMC, Streets.
(2) Upon the recommendation of the city engineer, lot access to adjacent public streets may be limited where public safety concerns or other extraordinary factors warrant.
(3) All single-family residential lots shall have a minimum width and depth sufficient to meet city of Entiat zoning code lot width and depth requirements for the particular zone the property is in.
(4) At street intersections in residential areas, lot corners shall be rounded by an arc, the minimum radius of which shall be not less than 10 feet or more than 30 feet.
(5) As slope increases, residential lot sizes shall increase to partially or completely avoid the problems of drainage, siltation, flood control, potential landslides, and accessibility which frequently are attributable to overdevelopment of slope areas.
(6) No residential lots shall have street frontage along two opposite boundaries unless topographical features or the need to provide separation of the lots from arterials, railways, commercial or industrial activities, justify the designing of reverse frontage lots.
(7) Side lot lines shall be straight lines running within 20 degrees of perpendicular to the road upon which the lots front. Side lot lines on curved roads should run at or near radially to the curve. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)
16.20.050 Easement provisions.
(1) Where alleys are not provided, easements for public utilities shall be provided along rear lot lines and side lot lines where necessary, including any necessary access easements. Where easements are necessary, they shall be a minimum of 15 feet in width. Where possible, the width of rear and side lot line easements shall be equally shared by abutting lots, and easements shall be continuous and aligned from block-to-block within the subdivision and with adjoining subdivisions.
(2) Easements for unusual facilities such as high voltage electric transmission lines, drainage canals, pondage areas, etc., shall be of such width as is adequate for the purpose, including necessary access easements.
(3) Utility lines, including but not limited to for electricity, communications, and street lighting, serving and located within the subdivision, shall be placed underground. Where topography, soil, or other conditions make underground installations impractical, and the hearing examiner so finds upon written evidence presented by the supplier of such utilities, the hearing examiner may waive this requirement for underground utilities.
(4) Where a subdivision is traversed by a watercourse, a drainage easement conforming substantially to the line of such watercourse, drainage way, wasteway, channel or stream, and of such width for construction, maintenance and control as will be determined by the hearing examiner adequate for the purpose shall be provided. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)
16.20.060 Fire protection standards.
(1) All subdivisions of lots containing less than one acre shall be required to provide water supplies for fire protection which shall be in addition to those water supplies required for domestic purposes. Water supplies for fire protection of lots over one acre in size may be required by the council as recommended by fire chief or city engineer. All requirements shall meet the minimum requirements as stated in the water standards.
(2) Water distribution mains on which fire hydrants are located shall be a minimum of eight inches in diameter. Minimum fire flows in one-family and two-family developments shall be 1,000 gallons per minute for two hours’ duration in all cases where water supplies for fire protection are required by the hearing examiner.
(3) In one-family and two-family subdivisions, fire hydrants shall be spaced no further than 500 feet apart. The size, type, and location of fire hydrants shall meet the approval of the fire marshal.
(4) Where it is determined that, in the future, additional developments will also be served by the distribution mains being installed as a part of the plat, the hearing examiner may require additional fire safety precautions, including, but not limited to, the provision of easements for access to adjacent lands, and the installation of larger than minimum distribution mains.
(5) Subdivisions intended for other than one-family and two-family dwellings shall provide fire protection facilities consistent with the standards established by the International Fire Code as administered by the fire marshal. (Ord. 857 § 7, 2023; Ord. 701 § 1 (Exh. A), 2009; Ord. 572 § 1, 2001)