16.40.040 Data required.
The preliminary plat shall include the following information:
A. Date, scale, and north arrow;
B. The approximate acreage or square footage and dimensions of each lot of the proposed subdivision and the number of lots contained therein. Calculations of lot areas to meet zoning district area regulations shall not include any land subject to tidal action below the mean high tide line;
C. Name of the proposed subdivision;
D. Names and addresses of subdivider(s) and the preparer of the plat;
E. Location map of the subdivision, giving the number of the section, township, range, and U.S. survey, if applicable, to which reference may be made;
F. A property map of the proposed plat areas, including:
1. The location of all property lines;
2. A topographic survey with contours at suitable intervals (generally five feet), unless the plat is a reversion to acreage, is a minor change to existing lot lines, or vacates existing lot lines, rights-of-way, or easements. Topographical surveys must be done on an accepted, established vertical datum. Government-prepared topographic data is acceptable to meet this requirement, if no changes to site topography have taken place since the date of the topographic survey;
3. The general location of streams, lakes, swamps, and drainage courses, including the location of floodplain areas;
4. Dedicated rights-of-way, patent reserves, road easements and reservation, and other constructed roadways located within and abutting the area to be platted, including right-of-way widths;
5. Section lines, if surveyed. Protracted section lines may be shown with a dashed line outside of U.S. surveys or other surveys that were established before the section lines were surveyed. Protracted section lines are not to be shown within U.S. surveys;
6. Adjacent unsurveyed property lines shall be shown with a dashed line to show their general relation to the proposed plat. Adjacent surveyed property lines shall be shown with a solid line of lighter weight than those lines that identify the boundaries of the platted area; and
7. The location of known existing facilities and structures within the proposed subdivision, such as buildings, sewage system, utility easements of record or in use, excavations, bridges, culverts, water systems, and wells;
G. Streets, street names, public and private rights-of-way and roadway widths, and other right-of-way easements within the plat showing location, width, and purpose;
H. Mean high water line on all lands affected by tidal action;
I. Lot lines and lot designations by lot and block numbers;
J. Designation of any lots proposed for zero-lot-line development;
K. Designation of proposed parks, playgrounds, schools, and other public uses;
L. The copy of the plat of record or the district recorder’s plat number, if available; and
M. A soils report, prepared by a professional engineer, geologist or other person with demonstrated training in soils mechanics, may be required when deemed necessary by the commission. Said report will be required only when indicated on the basis of observable conditions of the land related to proposed development density or use, topography, soil conditions, drainage or other similar site conditions. Said report should describe the soil conditions using the Unified Soil Classification System and identify foundation and grading problems associated with the soil, such as ground water and bedrock depth. The report should provide soils engineering guidelines for development including recommendations for subsurface drainage and excavation of unsuitable materials, if appropriate.
N. For subdivisions not served by public wastewater disposal and water supply systems, a report, prepared by an Alaska licensed professional engineer or certified wastewater treatment and disposal system installer, may be required when deemed necessary by the community development director (for abbreviated plats) or commission (for preliminary plats). Said report will be required only when indicated on the basis of observable conditions of the land related to proposed development density or use, topography, soil conditions, drainage or other similar site conditions. Said report must state that each lot within the subdivision is capable of accommodating the installation of an Alaska Department of Environmental Conservation approved on-site wastewater disposal system and water well. [Ord. FY2020-02 §6, 2019; Ord. 90-15 §2, 1990].