APPENDIX D: GEODETIC CONTROL INFORMATION
1.   Geodetic Control
The City of Winchester will make available all Geodetic Control information to be used for survey purposes. All coordinate values for these survey points shall be in Latitude Longitude using the North American Datum (NAD83) with a 1997 HARN adjustment. All Points should be projected into Kentucky State Plane System using the North American Datum (NAD83) with a 1997 HARN adjustment, Kentucky North Zone, FIPS zone 1601. All measurements shall be in US Survey Feet. The City’s Geodetic Control network can be accessed through the Commonwealth of Kentucky National Geodetic Survey Advisor, see http://nas.state.ky.us.
The surveyor or engineer preparing the plans shall tie the boundary into at least two points of the above mentioned survey control network. The basis of bearing for the plans must be in NAD83(1997) coordinate system.
If the Kentucky Geodetic Survey control points are not available and cannot be provided to the surveyor or engineer the above mentioned requirements will be waived. In these cases, the surveyor or engineer shall note and describe two reference locations. These locations will be used to tie the survey or plan to the state plane coordinate system.
2.   Data Format
In addition to as-built plans submitted in hard-copy format, a digital copy of the file used to produce the hard-copy plans shall be provided in AutoCAD Drawing Format (Version 14 or greater). In addition to the AutoCAD Drawing file, a PostScript file will be created from the original software package, containing a “reproduction” of the hard-copy as-built plans.
All digital files must be mapped to scale and submitted to the city on 3.5" floppy disk or CDROM.
3.   Data Layer Requirements
In order to evaluate the accuracy and promote the efficient use of the data in the City’s GIS, digital file layering has been standardized. The digital data shall use the following layering scheme:
a.   Parcel Data
Layer Name
Description
Layer Name
Description
PARCEL
PLAT and Taxable Parcel Lines
PARCEL_TXT
PLAT and Parcel Text (survey calls, ownership, etc.)
ROW
Plat & Condo ROW Lines
ROW_TXT
Right of Way text
Lot_Lines
Plat & Condo Lot Lines
LOT_TXT
Text for lot numbers and descriptions
Rd_Names
Road Names
Dimension
Plat & Condo Dimensions
 
b. Water System
Layer Name
Description
Layer Name
Description
WA_MAIN
Water Mains
W_MN_TXT
Water Main Text
WAT_MH
Water Manholes
W_MH_TXT
Water Manhole Text
WVALVE
Water Values/not with manholes
WVLV_TXT
Water Valve Text
WAT_HYD
Hydrants
W_HYD_TXT
Hydrant Text
WLAT
Water Service Laterals
WLAT TXT
Water Lateral Text
 
c.   Sanitary Sewer
Layer Name
Description
Layer Name
Description
SAN_SMN
Sanitary Sewer Mains
SAIM_SMN_TXT
Sanitary Sewer Mains Text
SAN_SFRC
Sanitary Force Mains
SAN_SFRC_TXT
Sanitary Force Mains Text
SAN_SMH
Sanitary Manholes
SAN_SMH_TXT
Sanitary Sewer Manhole Text
SAN_SLAT
Sanitary Service Laterals
SAN_SLAT_TXT
Sanitary Service Laterals Text
 
d.   Storm Sewer
Layer Name
Description
Layer Name
Description
ST_SMAIN
Storm Sewer Mains
ST_SMAIN_TXT
Storm Sewer Main Text
ST_SLAT
Storm Sewer feeder lines
ST_SLAT_TXT
Storm Sewer feeder line Text
RET_PND
Storm water storage facilities
RET__PND_TXT
Storm water storage facility Text
ST_SMH
Storm Water manholes
ST_SMH_TXT
Storm Water manhole Text
ST_SINL
Storm Water Inlets
ST_SINL_TXT
Storm Water Inlet Text
ST_SCB
Storm Water Catch Basins
ST_SCB_TXT
Storm Water Catch Basin Text
ST_SHWLL
Storm Sewer head walls
ST SHWLL TXT
Storm Sewer head wall Text
 
4.   Manually Prepared Plats
Survey data (for manually prepared plats) must be submitted in an ASCII text file within a rigidly defined tabular format.
5.   Adjustments to these requirements
The City of Winchester may wave or adjust requirements specified herein, upon a finding that the strict adherence of the requirements does not apply or is contrary to the long-term maintenance of the GIS of the City of Winchester.
6.   Review of Digital Data
All digital data will be reviewed for the following criteria:
   1.   Correct layering
   2.   Closure of the geometry of the boundary
   3.   Verification that digital and hardcopy maps are consistent
   4.   Correct geographical position (i.e. correct coordinate values for final submission
The Applicant will be given ten (10) working days from the day of notification of errors to correct and resubmit the correct digital file prior to final approval by the Winchester Clark County Planning Commission.
(Ord. passed 3- -1995; Ord. passed 10- -2005; Ord. 2018-03, passed 2-14-2018; Ord. passed 1- -2020)