(A) Existing utilities.
(1) Where a new development is undertaken in an area where any utilities already exist, the location, size and type of all such existing utilities shall be shown on maps and submitted by the developer to the town. These maps shall conform to the mapping standards given herein below. Each utility shall be clearly labeled by type, size and material, either by note or legend.
(2) All existing appurtenances related to these utilities, such as manholes, cleanouts, valves, hydrants, junction boxes, sectionalizers, and transformers shall also be shown on the maps and clearly labeled, either by note or legend.
(3) The location of all existing utilities shall be established by survey. These surveys shall be tied to public monument networks and right-of-way markers. The dimensions of utilities and appurtenances from right-of-way lines shall be shown on the maps. (Provide GPS coordinates for underground utilities when available.)
(B) Proposed utility extensions.
(1) Maps detailing the location type, size and material of all proposed wet, dry and other utility extensions, along with all required appurtenances, shall be submitted by the developer to the town. The method of connection to existing utilities shall be called out in notes or shown in details.
(2) The design of all utility extensions shall be performed in accordance with all the provisions stated or referenced in this standard.
(C) As-built mapping. After construction of the proposed utility extensions but before service is activated, the developer shall submit as-built maps of all utility extensions. The location details required shall be as for existing utilities described above. As-built maps shall be certified by a registered professional engineer licensed in the state where the proposed utility extensions are located.
(D) Wavier of utility mapping.
(1) If the developer enters into agreements with the utility providers for the design of utility extensions and pays additional design fees, as provided for herein above, then the requirements for furnishing utility mapping shall be waved.
(2) In this case, the additional design fees shall include a portion for utility mapping that would then be performed by the utility providers, or their representatives.
(E) Electronic maps.
(1) All maps required herein shall be delivered in electronic format in a format determined by the Planning and Zoning Director. The required format is AutoCad Map®, current release or within three years.
(2) The map shall be based on local survey ground lengths and assumed coordinates. Basis of bearings and elevation datum shall be fully described. The distance measurement unit shall be international feet. No state plane or ellipse map projections shall be used.
(3) Electronic maps shall be divided into layers. Utility trunk lines and all related appurtenances shall be separated onto layers according to their type, size and material. Each layer shall depict a single mapping entity, i.e., one type, size and material of utility trunk line, one type of utility appurtenance, and the like.
(4) Map layers shall be depicted according to industry standard Blue Stake colors as designated for utility color coding herein above. In addition, all entities shall have unique line or symbol types in order to facilitate rendering on paper maps as required herein below.
(5) Base map entities shall also be on their own layer. As a minimum, the provided base map entities shall include road right-of-way lines, street labels, public land survey grids, subdivision lot lines, lot number labels, drainage channels and other bodies of water.
(6) Minimum two-foot contour lines shall be provided in areas where utility extensions are proposed. The contours shall extend across and at least 100 feet beyond road right-of-way boundaries or other utility corridor or easement boundaries.
(7) All survey points used to locate existing and as-built utilities shall be preserved on their own layer according to utility type (water, sewer, and the like).
(8) Line work and symbology of utility trunk lines and appurtenances shall be located and connected to reflect their real location and relationship.
(9) Legends, symbols and line types shall be used to differentiate all of the layers described above.
(10) Text shall be designed for 1" = 100' paper copies on 22"x34" (24"x36") pages. No lettering shall be less than 0.10" at this scale. All text shall be placed on separate layers grouped by utility type (water, sewer, electrical, and the like).
(11) GIS versions of the above data will be accepted in addition to the above format.
(F) Paper maps.
(1) Paper maps of utilities shall be provided in four sets for review. Each set shall consist of individual sheets that group wet utilities and dry utilities on their own sheets. Also each other utility shall be shown on its own sheet.
(2) These maps shall be plotted at no smaller than 1"=100' scale. They shall be presented on 22"x34" (24"x36") paper. Lettering shall not be less than 0.10" in height. All line types, symbology and lettering shall be clearly discernable.
(3) All paper maps shall be derived from viewports of the identical electronic version described above. They shall present not less than the same information shown on the electronic version, including base map details.
(4) All paper maps shall be plotted using black ink. All certified As-Build maps shall be furnished on Milar® film using black pigmented ink.
(5) In cases where more than one sheet is required to describe the development, the map shall be tiled and an overall vicinity map showing this tiling shall be added as a separate page. References to other tiled boundaries shall be given on each page.
(6) In addition to all of the above, all paper maps shall show as a minimum the following:
(a) North arrow;
(b) Scale;
(c) Legend;
(d) Subdivision or development name;
(e) Utility type label;
(f) Owner (developer) name, address, telephone;
(g) Engineer name, address, telephone; and
(h) Age number.
(Ord. 2017-02, passed 11-13-2017; Am. Ord. 2021-22, passed 12-13-2021)