Chapter 17.20
DESIGN
Sections:
17.20.010 Lots.
(a) The minimum area and dimensions shall conform to the appropriate land use district regulations.
(b) Widths and depths of lots shall be designed for the type of land use contemplated for the development. Whenever possible, the depth of a lot should not be greater than twice its width.
(c) Corner lots should be wide enough to permit building sites which could have orientation from either street and allow good traffic site distance. Lots with direct street frontage on both the front and rear should be avoided.
(d) Each lot shall have access to a public, dedicated street in the continuous integrated network of county, city, state, and federal roadways. A statement dissolving right of access from individual lots to arterial streets may be required on the final plat.
(e) Each lot shall have an adequate building area with consideration of poor soils, high water tables, flooding possibilities, or other limiting hazards to building sites, access or sanitary sewage facilities. Adequate area for fire protection vehicles to turn around on the developed lot should be considered.
(f) Lots should be numbered beginning at lot No. 1 and numbered consecutively upward for each filing. Lots in re-plats generally shall be alphabetically identified to avoid numerical confusion. Block numbers are discouraged in order to prevent confusion.
(g) Reserve strips controlling access to streets or utilities shall be prohibited except where their control is given to the town under conditions approved by the town council. [1996 Code § 7-102(a).]
17.20.020 Easements.
(a) Public Utility Easements. The subdivider shall discuss utility easements required with local utilities. Utility easements shall not be less than 12 feet in width, total, and providing the proper width to satisfy all public utilities requirements shall be the responsibility of the subdivider. Irrigation districts are considered to be public utilities.
(b) Drainage Easements. If a subdivision is traversed by a watercourse, drainage way or channel, then a storm water easement shall conform to the lines of such watercourse and shall be of such width or construction, or both, as may be necessary to provide adequate storm water drainage and for access to and maintenance thereof. Drainage areas generally should be left in a natural state unless channelization is recommended by the town engineer. [1996 Code § 7-102(b).]
17.20.030 Drainage systems.
The drainage system shall be designated to perform as follows:
(a) To permit the unimpeded flow of natural watercourses;
(b) To accommodate potential runoff from drainage areas upstream from the development;
(c) To provide adequate protection of development downstream by detaining storm runoff caused by the development of the subdivision so that peak flows downstream do not cause damage as a result of the development. [1996 Code § 7-102(c).]
17.20.040 Street plan.
(a) The street pattern shall be in conformity with these regulations and the town area major street plan. Location of existing, planned or platted streets shall be considered in street layout. Centerlines of streets not in alignment shall be offset by a minimum of 150 feet (4.6 meters).
(b) Proposed streets shall be extended to the boundary lines of the land to be subdivided, unless prevented by topography or other physical conditions or unless, in the opinion of the planning commission, such extension is not necessary for the connection of the subdivision with the existing thoroughfare layout or is not the most advantageous future development of adjacent tracts.
(c) In the case of stub-end streets which shall continue with future development, a temporary turnaround easement, being 100 feet in diameter, will be indicated at the end of the stub-end street. A note limiting the life of the easement shall be put on the final plat.
(d) Proposed streets and rights-of-way shall intersect one another as nearly as possible at right angles. The intersection of more than two streets is not permitted.
(e) Excessively long, straight residential streets, conducive to high speed traffic, shall be discouraged within individual subdivisions. Residential streets shall be arranged to discourage through traffic which should be on collector or arterial streets.
(f) Half streets and dead-end streets are not permitted.
(g) Streets shall have the following minimum right-of-way widths:
(1) Principal arterials: 100 feet (30.5 meters).
(2) Minor arterial streets: 80 feet (24.4 meters).
(3) Collector streets: 60 feet (18.3 meters).
(4) Local (residential) streets: 60 feet (18.3 meters).
(h) Permanent cul-de-sacs may serve no more than 20 lots and must be provided with a right-of-way at the turnaround of a 55-foot radius or more and the outside curb or pavement edge radius shall be 45 feet or more. [Ord. 419 Ch. 5 § 6, 1976. 1996 Code § 7-102(d).]