§ 42-185. Survey accuracy.  


Latest version.
  • (a)

    Examination. The Common Council and Plan Commission, or their designees, shall examine all final plats within the City and may check for the accuracy and closure of the survey, the proper kind and location of monuments, and legibility and completeness of the drawing.

    (b)

    Maximum error of closure. Maximum error of closure before adjustment of the survey of the exterior boundaries of the subdivision shall not exceed, in horizontal distance or position, the ratio of 1:5,000, nor in azimuth, four seconds of arc per interior angle. If field measurements exceed this maximum, new field measurements shall be made until a satisfactory closure of the field measurements has been obtained; the survey of the exterior boundary shall be adjusted to from a closed geometric figure.

    (c)

    Street, block and lot dimensions. All street, block and lot dimensions shall be computed as closed geometric figures based upon the control provided by the closed exterior boundary survey. If checks disclose an error for any interior line of the plat greater than the ratio of 1:3,000, or an error in measured angle greater than one minute of arc for any angle where the shorter side forming the angle is 300 feet or longer, necessary corrections shall be made. Where the shorter side of a measured angle is less than 300 feet in length, the error shall not exceed the value of one minute multiplied by the quotient of 300 divided by the length of the shorter side; however, such error shall not in any case exceed five minutes of arc.

    (d)

    Plat location. Where the plat is located within a quarter section, the corners of which have been relocated, monumented and coordinated by the City, the tie required by Wis. Stats. § 236.20(3)(b) may be expressed in terms of grid bearing and distance; and the material and Wisconsin State plane coordinates of the monument marking the relocated section or quarter corner to which the plat is tied shall be indicated on the plat. The grid bearing and distance of the tie shall be determined by a closed survey meeting the error of closure herein specified for the survey of the exterior boundaries of the subdivision.

(Code 1991, § 14-1-41(e))