Wisconsin Code § 236.20

Final plat
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A final plat of subdivided land shall comply with all of the following requirements:
(1) GENERAL REQUIREMENTS. All plats shall be legibly prepared and meet all of the following requirements:
(a) The plat shall have a one-inch margin on all sides. A
graphic scale of not more than 100 feet to one inch shall be shown
on each sheet showing layout features. When more than one
sheet is used for any plat, each sheet shall be numbered consecutively and shall contain a notation giving the total number of
sheets in the plat and showing the relation of that sheet to the
other sheets and each sheet shall bear the subdivision and county
name.
(c) For processing under s. 236.12 (2), the original copy of the
final plat shall be 22 inches wide by 30 inches long and on any
material that is capable of clearly legible reproduction.
(2) MAP AND ENGINEERING INFORMATION. The final plat
shall show correctly on its face all of the following:
(a) The exterior boundaries of the land surveyed and divided.
(b) All monuments erected, corners, and other points established in the field in their proper places. The material of which
the monuments, corners, or other points are made shall be noted
at the representation thereof or by legend, except lot, outlot, and
meander corners need not be shown. The legend for metal monuments shall indicate the kind of metal, the outside diameter,
length, and weight per lineal foot of the monuments.
(c) The length and bearing of the exterior boundaries, the
boundary lines of all blocks, public grounds, streets, and alleys,
and all lot lines, except that when the lines in any tier of lots are
parallel it shall be sufficient to mark the bearings of the outer
lines on one tier. Easements not parallel to a boundary or lot line
shall be shown by center line distance, bearing, and width or by
easement boundary bearings and distances. Where easement
lines are parallel to boundary or lot lines, the boundary or lot line
distances and bearings are controlling. Where the exterior
boundary lines show bearings or lengths that vary from those
recorded in abutting plats or certified surveys there shall be the
following note placed along the lines, “recorded as (show
recorded bearing or length or both).”
(d) Blocks, if designated, shall be consecutively numbered, or
lettered in alphabetical order. The blocks in numbered additions
to subdivisions bearing the same name shall be numbered or lettered consecutively through the several additions.
(e) All lots and outlots in each block consecutively numbered
within blocks and the subdivision and throughout numbered additions to the subdivision.
(f) The exact width of all easements, streets and alleys.
(g) All shore meander lines for all lakes or navigable streams
that are established by the professional land surveyor in accordance with s. 236.15 (1) (d), the distances and bearings thereof,
and the distance between the point of intersection of such meander lines with lot lines and the determined or approximated ordinary high water mark.
(h) The center line of all streets.
(i) A north point properly located thereon identified as referenced to a magnetic, true or other identifiable direction and related to a boundary line of a quarter section, recorded private
claim or federal reservation in which the subdivision is located.
(j) The area in square feet of each lot and outlot.
(k) When a street is on a circular curve, the main chords of the
right-of-way lines shall be drawn as dotted or dashed lines in their
proper places. All curved lines shall show, either on the lines or
in an adjoining table, the radius of the circle, the central angle
subtended, the chord bearing, the chord length, and the arc length
for each segment. The tangent bearing shall be shown for each
end of the main chord for all nontangent circular lines. When a
circular curve of 30-foot radius or less is used to round off the intersection between 2 straight lines, it shall be tangent to both
straight lines. It is sufficient to show on the plat the radius of the
curve and the tangent distances from the points of curvature to the
point of intersection of the straight lines.
(L) When strict compliance with a provision of this section
will entail undue or unnecessary difficulty or tend to render the
plat or certified survey map more difficult to read, and when the
information on the plat or certified survey map is sufficient for
the exact retracement of the measurements and bearings or other
necessary dimensions, the department or, in 1st class cities, the
city engineer may waive such strict compliance.
(3) NAME, LOCATION AND POSITION. The name of the plat
shall be printed thereon in prominent letters, and shall not be a
duplicate of the name of any plat previously recorded in the same
county or municipality. All of the following information relating
to the position and location of the subdivision shall be shown on
the plat:
(a) The location of the subdivision by government lot,
recorded private claim, quarter-quarter section, section, township, range, and county noted immediately under the name given
to the subdivision.
(b) The location of the subdivision shall be indicated by bearing and distance from a boundary line of a government lot monumented in the original survey or resurvey of Wisconsin, quarter
section, recorded private claim, or federal reservation in which
the subdivision is located. The monumentation at the ends of the
boundary line shall be described and the bearing and distance between them shown.
(c) A small drawing of the section or governmental subdivision of the section in which the subdivision lies with the location
of the subdivision indicated thereon or, if approved by the department, a location sketch showing the relationship of the subdivision to existing streets. The drawing or sketch shall be oriented
on the sheet in the same direction as the main drawing.
(d) The names of adjoining streets, state highways and subdivisions shown in their proper location underscored by a dotted or
dashed line.
(e) Abutting street and state highway lines of adjoining plats
shown in their proper location by dotted or dashed lines. The
width of these streets and highways shall be given also.
(4) ROADS AND PUBLIC SPACES. (a) The name of each road
or street in the plat shall be printed on the plat.
(b) All lands dedicated to public use shall be clearly marked
“Dedicated to the Public”.
(c) All roads or streets shown on the plat which are not dedi-

cated to public use shall be clearly marked “Private Road” or
“Private Street” or “Private Way”.
(d) Each lot within the plat must have access to a public street
unless otherwise provided by local ordinance.
(5) SITE CONDITIONS AND TOPOGRAPHY. The final plat shall
show all of the following:
(a) All existing buildings.
(b) All watercourses, drainage ditches and other existing features pertinent to proper subdivision.
(c) The water elevations of adjoining lakes or navigable
streams at the date of the survey and the approximate high water
elevations of those lakes or streams. All elevations shall be referred to some permanent established datum plane.
(6) PUBLIC TRUST INFORMATION. A final plat of a subdivision, or a certified survey map of land, to which s. 236.16 (4) applies shall show on its face the following statement:
“Any land below the ordinary high water mark of a lake or a
navigable stream is subject to the public trust in navigable waters
that is established under article IX, section 1, of the state
constitution.”

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