Consistent with the provisions of Ch. 236, Wis. Stats., preliminary plats shall
include the following data and format.
A. Plat data. A preliminary plat shall be required for all subdivisions
(as defined herein) and shall be based upon a survey by a professional
land surveyor and the plat prepared on Mylar, vellum or paper of good
quality at a scale of not less than 200 feet to the inch and shall
show correctly on its face the following information:
[Amended by Ord. No. 1999-2; Ord. No. 2009-13; Ord. No. 2013-33; at time of adoption of Code (see
Ch. 1, General Provisions, Art. IV)]
(1) Title under which the proposed subdivision is to be recorded.
(2) Location of proposed subdivision by government lot, quarter-section,
township, range, county and state.
(3) Date, scale, North arrow.
(4) Names and address of the owner, subdivider and land surveyor preparing
the plat.
(5) Land contiguous to the proposed plat owned or controlled by the subdivider
shall be included on the preliminary plat even though only a portion
of said area is proposed for immediate development.
(6) The distance and bearing of the exterior boundaries of the proposed
subdivision referenced to a corner established in United States public
land survey and the total acreage encompassed thereby.
(7) Contours as vertical intervals of not more than two feet. Where ground
slopes exceed 10%, five-foot vertical intervals will be sufficient.
Where possible, elevations should be based on mean sea level datum.
(8) High-water elevation of all ponds, streams, lakes, flowages and wetlands
based upon mean sea level datum. Floodplain and shoreland boundaries
shall be delineated and the contour line lying a vertical distance
of two feet above the elevation of the 100-year recurrence interval
flood or, where such data is not available, five feet above the maximum
flood on record or a known high-water elevation.
(9) Location and names of any adjacent developments and/or property along
with the location, established and existing width of all roads and
names of all existing streets, alleys or other public ways, easements,
railroad and utility rights-of-way and easements, and all section
and quarter-section lines in the immediate area of the plat. The type,
width and elevation of existing street pavements within or adjacent
to the proposed development, together with any legally established
center-line elevations referred to mean sea level datum.
(10)
Location, size and invert elevation of any existing sanitary
or storm sewers, culverts and drainpipes, the location of manholes,
catch basins, hydrants, electric power and telephone poles or underground
installations, location and size of any existing water and gas mains
within the area of the plat or adjacent thereto. If no sewers, water
mains or other utility facilities are located on or immediately adjacent
to the tract, the nearest such facilities which might be extended
to serve the tract shall be indicated by their direction and distance
from the tract, their size and their invert elevation.
(11)
Location of all existing property boundary lines, structures,
drives, streams or watercourses, marshes, rock outcrops, wooded areas,
railroad tracks, primary environmental corridors, isolated natural
resource areas and other similar significant features within the tract
being subdivided or immediately adjacent thereto.
(12)
The approximate dimensions of all lots, proposed open-space
dedication, drainageways, or other public use areas such as shopping
centers, church sites, group housing or other nonpublic uses that
do not require lotting.
(13)
Existing zoning on and adjacent to the proposed subdivision,
along with corporate limit lines, including any airport or transportation-related
overlay districts.
(14)
Proposed lake and stream access in the subdivision, along with
any improvement or relocation of the lake or stream.
(15)
Soil types, slopes and boundaries as shown on the soil survey
maps prepared by the Natural Resources Conservation Service, United
States Department of Agriculture.
(16)
Any additional information required by the County or the town.
(17)
Plans for soil conservation and erosion control measures such
as gutters, ditches, catch basins, storm sewers, culverts, open channels,
sediment traps or basins, terraces, water diversions and similar practices,
shown with unique symbols and defined in the legend on the preliminary
plat, any measures or practices required by these County or town construction
site erosion control and stormwater management ordinances adopted
pursuant to §§ 59.693 or 60.627(2), Wis. Stats.
(18)
Surface drainage pattern mapping and indication of direction
and established peak volume of soil drainage pattern.
(19)
Following preliminary plat approval, detailed construction plans shall be submitted to and reviewed by the LWCD personnel as to conformance with accepted Natural Resources Conservation Service Standards based on the NRCS Technical Guide, Engineering Field Manual and other accepted Washington County or Natural Resources Conservation Service standards in accordance with §
257-4B of this chapter.
B. Construction site erosion control and stormwater management plans and profiles. The subdivider shall prepare and submit soil conservation and erosion control plans and profiles as required in Chapter
238, Erosion Control and Stormwater Management, of the Code of Washington County or by a town ordinance where a town has adopted a similar ordinance or entered into an intergovernmental agreement with Washington County under § 66.0301, Wis. Stats., for ordinance administration services. These plans and profiles shall be approved prior to letting bids and/or any subdivision construction. Compliance with the applicable construction site erosion and stormwater management ordinance is subject to the terms and conditions of the applicable ordinance and does not constitute an objection or approval under this chapter.
[Amended by Ord. No. 2001-8]
C. Soil tests. The County may require that borings and soundings be
made in specified areas to ascertain subsurface soil, rock and water
conditions, including depth to groundwater or bedrock. These provisions
may be in addition to the requirements of Ch. SPS 385, Wis. Adm. Code
and shall be submitted for review with the preliminary plat.
D. Protective covenants. Protective covenants may be required whereby
the subdivider intends to regulate land use in the proposed subdivision
and otherwise protect the proposed development.
E. Certification. The surveyor preparing the preliminary plat shall
certify on the face of the plat that it is a correct representation
of all existing land division and features and that he or she has
fully complied with the provisions of this chapter.
The provisions of this chapter are severable, and if, for any
reason, a clause, sentence, paragraph, section or other part of this
chapter should be declared invalid by a court of competent jurisdiction,
such invalidity shall not affect other provisions which can be given
effect without the invalid provisions.
[Amended by Ord. No. 2001-8]
The Washington County Board of Supervisors may, upon recommendation
of the Planning, Conservation and Parks Committee, amend, supplement
or repeal any of these regulations after notice and public hearing.