§ XII. Final Plats.  


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  • The final plat shall be drawn in ink to scale of one (1) inch equals one hundred (100) feet on tracing cloth or polyester base film, in one (1) or more sheets whose dimensions are no less than eight and one-half inches by fourteen inches (8½″ × 14″) and no larger than seventeen inches by twenty-two inches (17″ × 22″) as deemed appropriate to match the required scale. For subdivisions without improvements, and for resubdivisions sheet size shall be eight and one-half inches by fourteen inches (8½″ × 14″) or multiples thereof. Where the subdivided area is of unusual size or shape, the planning commission may permit a variation in the scale or size of the final plat. If more than two (2) sheets are required, an index sheet of the same dimensions shall be filed showing the entire subdivision on one (1) sheet.

    1.

    All information required in section XI for the preliminary plan and, in addition, specific information listed below shall be required on the final plat:

    (a)

    Name of subdivision.

    (b)

    Name, address and signature of the subdivider.

    (c)

    North point, scale and date.

    (d)

    The outer boundary lines with accurate distances, angles, or true bearings, if available, the exact location width of all recorded streets and ways intersecting the boundaries of the tract being divided.

    (e)

    Distances and angles, or true bearings, if available, to the established street lines or official monuments, which shall be accurately described on the plat; municipal, range, township, parish and section lines accurately tied to the lines of the subdivision by distances and angles, or true bearings, if available.

    (f)

    Streets, alleys and ways, together with their names and widths.

    (g)

    All curve data, the lengths of all arcs, radii, internal angles, points of curvature, lengths and bearings of tangents.

    (h)

    All dimensions, both linear and angular, necessary for determining the exact boundary of all lots in the subdivision; all angles must either be given directly or indicated by the bearings shown; where any lot line is curved, the significant elements of the curve, such as the arc length and the subtending central angle, bearing and dimensions of side lot lines and where a curve is involved, an indication if it is a radial line and any and all mathematical information and data necessary to locate all interior and exterior boundary lines of any lot.

    (i)

    Every plat shall show a note giving reference to the basis of the bearing, i.e., "Bearings shown refer to true North" or "Bearings shown refer to Grid North as Established for the Louisiana Plane Coordinate System by the U.S.C. & G.S." or "Bearings shown refer to assumed North based on a bearing of S10°30′10″W used for the centerline of State Highway 100", or "Bearings shown refer to the map (or deed) call N30°E for the easterly line of the Smith Tract," etc. In all cases the bearings used shall be referenced to some well established line.

    (j)

    All block indications, if any; lot numbers all individual areas shall be designated by number or letter, and lots in new subdivisions shall be numbered consecutively. No tract or portion of land shall be indicated as "Reserved."

    (k)

    The accurate location, material, type and description of all permanent control monuments: All monuments are to meet the specifications as set forth in section XII(c) of this ordinance; location, description and elevation of bench marks, based on mean sea level datum as determined by U.S.C. & G.S.; where no established bench mark exists, a permanent bench mark shall be established on the property based on mean sea level datum and shown on the plat.

    (l)

    Special use areas: Location and size of proposed parks, playgrounds, church or school sites or other special uses of land to be considered for dedication or sale for public use, and all property that may be designated by deed and covenants for the common use of the property owners in the subdivision, along with a statement for responsibility for maintenance.

    (m)

    Description of the tract being subdivided.

    (n)

    A statement signed by the owner to the effect that the streets and rights-of-way are dedicated to the perpetual use of the public for proper purposes, and that all areas shown as servitudes are granted to the public for use of utilities, drainage, sewage disposal or other proper purpose in the general interest of the public. Said statement shall further provide that no trees, shrubs, or other plants may be planted, nor shall any fence, structure or improvements be constructed or installed within or over any servitude or right-of-way so as to prevent or unreasonably interfere with any purpose for which the servitude or right-of-way is granted.

    (o)

    Restrictions: Private restrictions, restrictive covenants or trusteeships and their periods of existence to apply to lots in the subdivision shall be signed by the owner or his agent and recorded in the office of the clerk and recorder of Natchitoches Parish, and references to such instrument shall be made on the plat and a copy shall be furnished to the planning commission.

    (p)

    When the area subdivided lies at such elevation that without additional drainage facilities not then available it will become inundated or overflowed by rain or storm water, a statement shall be lettered on the subdivision plat, setting forth these facts, and portions that have been overflowed shall be indicated by shading on the plat.

    (q)

    Certification shall be a statement by a registered land surveyor licensed to practice in the State of Louisiana to the effect that the plan is based upon an actual survey made by him and that the distances, courses, and angles and all other required survey information are shown correctly, that the monuments have been set and the lot and block corners staked correctly on the ground and that he has fully complied with the provision of the Revised Statutes 33:5051, et seq., and regulations governing platting. The Land Surveyor's seal shall also be shown.

    (r)

    Spaces for official approval signatures shall be provided for the following officials:

    (1)

    Mayor

    (2)

    Public Works Director

    (3)

    Utilities Director

    (4)

    Chairman or the Planning Commission

    (5)

    Fire Chief

    (s)

    Location of street light standards.

    2.

    All surveying for perimeter, street centerline, property line and control monumentation of a subdivision shall be performed with the precision of a second-order traverse in accordance with the following specifications prescribed in ASCE Manual of Engineering Practice No. 10, Technical Procedure for City Surveys:

    (a)

    The average angular error shall not exceed per instrument station, and the maximum shall not exceed per instrument station, N being the number of the instrument stations on the line.

    (b)

    The average position closure, after distribution of 2 azimuth errors, shall not exceed 1 in 15,000 and the maximum shall not exceed 1 in 10,000.

    3.

    Permanent control monuments of materials approved by the City of Natchitoches shall be placed at all of the following locations and shown on the final plat:

    (a)

    At the corners, control points and angle points around the perimeter on boundary of the subdivision at intervals no further than six hundred (600) feet apart.

    (b)

    At all points where the perimeter or boundary of the subdivision intersects street right-of-way lines.

    (c)

    At all street corners formed by the intersection of street right-of-way lines. On curved street corners, monuments shall be placed on the right-of-way line at each end of the curve.

    (d)

    On all property lines at the point of curvature and the point of tangency of all horizontal curves.

    (e)

    The submission of the final plat for checking by the City of Natchitoches shall be accompanied by a complete survey of the outer perimeter or boundary of the plat, including copies of complete field and computation notes, description of all monuments, a sketch showing all distances, angles and calculation required to determine the corners and distances of the plat together with the calculations on all traverses showing error closure and method of balancing. Complete calculations shall be also submitted for all distances, angles, arc lengths, the central angle, the length and bearing of the chord subtending the property line arc and all other pertinent and necessary calculations for lots having frontage on horizontal curves. The required submission of the survey data and computation is for the purpose of placing all such data and information concerning the subdivision in the public records of the City of Natchitoches and it is so stipulated that the responsibility for the correctness and accuracy of said survey data and computation rests with the registered land surveyor submitting the final plat of the subdivision.

(Ord. No. 28-1995, § 1.13, 5-8-95; Ord. No. 09-1997, § 4, 2-24-97; Ord. No. 72-1998, 8-10-98; )