Aerial planimetric/topographic (plan/topo) base map tile covering one quarter section extent of land in Wyandotte County, KS, at a nominal scale of 1:1200, in AutoCAD DWG digital file format in Kansas North State Plane coordinates in U.S. Survey feet. Map product was prepared by MJ Harden Assoc., photogrammetric vendor for Unified Government of Kansas City/Wyandotte County, KS departments, and Board of Public Utilities in Wyandotte Co., KS These plan/topo datasets contain standard plan feature layers, including edge of pavement (roads), sidewalks, fences, building footprints, retaining walls, parking lots, power poles, and signs, among others. Contour lines are shown at 2 foot intervals, with index contours at 10 foot intervals. Line feature data represent a composite of different years of aerial photo mission content using stereo compilation. No field collection of plan data was performed. Meets National Map Accuracy Standards (NMAS) at specified scale of 1" = 100'. These CAD maps were created over various years using various aerial photo years. An index to latest photo year for each map tile number is available.
Developed to serve as plan/topo base maps for Unified Government's (UG) Enterprise GIS (E-GIS), and for use in conventional base mapping applications geared originally for tax assessment, utility, and engineering purposes. They serve as base maps for Electric and Water utility divisions of Board of Public Utilities in Wyandotte County, KS, and as base maps for engineering planning and analysis by divisions in the UG's Department of Public Works.
Unified Government's GeoSpatial Services (GSS) is also custodian/distributor of many other digital spatial reference layer datasets covering Wyandotte County, Kansas. For more information on publicly available datasets contact GSS using Distributor contact info in this metadata.
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1) Use of certain datasets is subject to terms of 'GIS Data Transmittal and Confidentiality Agreement'. For details contact GeoSpatial Services (GSS). GSS asserts all rights under copyright © 2012 by Unified Government of Wyandotte County, Kansas City, Kansas. Unauthorized redistribution not permitted. 2) This metadata is an integral part of this data and should be used with and accompany data. 3) This data may come from a variety of sources and lineage and may not align perfectly when overlaid with other GIS layers. 4) You, the user, must exercise good judgment when acting upon this information. This data should always be independently verified with original (primary) data sources for accuracy/currency/completeness if circumstances (such as possible economic loss, physical injury risk, etc.) require it. Distribution of this data is intended for informational purposes only and said data is not necessarily deemed to standards for navigational, engineering, surveying, or legal uses. Data should not be used at a scale at odds with its accuracy or resolution. 5) Although every effort has been made to ensure the accuracy of information, errors may be reflected in the data supplied.
For general inquiries: call 913-573-2941 or email to gss@wycokck.org For GIS digital data requests/inquiries call 913-573-2941 or email to GetGISdata@wycokck.org
GeoSpatial Services Division (GSS) of Department of Technical Services of the Unifed Government of Wyandotte County/Kansas City, Kansas.
Fair to good CAD layer table attribution (name, layer number, symbol code, etc). Some inconsistencies have been found in previous map editions. There may be factual errors in annotation layers (street names, address numbers) since this data is not rigorously tested.
In some older edition maps, coincident line features on different layers (e.g. a retaining wall segment adjoining a sidewalk edge) will not be faithfully depicted on both feature layers, that is, the coincident segment will appear on one layer but be missing on the other layer. Edge matching-- datasets of different map editions/years may not edge match well-- symbology may be offset, overshoot, or undershoot. Most abutting maps, especially of of this edition, should edge match reasonably well by using a common grid for tiling map extents. Line features representing polygons, such as building outlines, may not be topologically correct closed polygons. Some earlier vintage datasets may contain inconsistent layer naming and feature symbology codes
Believed to be a complete representation of specified planimetric/topographic detail in this tile's extent, as captured from aerial photographs using stereocompilation methods
Vendor claims this mapping will meet or exceed National Map Accuracy Standards, expressed as follows: The horizontal accuracy will be such that not more than 10% of the points tested shall be in error by more than 1/30 inch at the originally stipulated map publication scale when compared to the nearest horizontal control station. For the intended scale of this mapping, the specified error tolerance (1/30 of 1" = 100') is +/- 3.33 feet. However, these maps have not been field-checked for accuracy. Vendor states that responsibility for map testing rests with Unified Government/Board of Public Utilities. Such testing has apparently never been conducted at any time in life cycle of these maps.
Vendor claims this mapping will meet or exceed National Map Accuracy Standards, expressed as follows: The vertical accuracy will be such that not more than 10% of the elevations tested shall be in error more than 1/2 the originally stipulated contour interval when compared to the nearest benchmark. In areas where the ground is obscured on the photographs, such as areas of dense foliage or coniferous growth, contours may not meet the previously defined National Map Accuracy Standards and no warranty is expressed or implied concerning such areas. Wherever possible, however, spot elevations will be shown to provide the most complete and accurate vertical information available from the photography used for this project
GPS ground control surveys established horizontal and vertical photogrammetric ground control on photo-identifiable positions
Aerial photography mission executed.
Analytical Aerotriangulation. Using imagery and field survey controls, aerotriangulation is performed. This consists of developing a network of horizontal and vertical positions from a group of know field control positions utilizing direct and indirect measurements from the digital photography and mathematical computations. This method accurately determines horizontal position (x and y) and elevation (z) of supplemental control points for each individual stereo projection.
Capture of planimetric and contour detail. Controlled stereo models are viewed on stereo compilation workstations to collect visible, identifiable new plan features (see list at bottom) from the aerial imagery that is generally shown on 1"= 100' maps. Plan features no longer visible are removed from map document. No field data collection or verification is performed at any stage. Using existing Digital Terrain Model (DTM), stereo compilation technicians collect break lines and random spot elevations in areas of change. Then these digital data files are transferred to MJ Hardens's Cartographic Department where DTM data is processed to generate contours at 2 foot intervals. List of map features that are captured: Bridges, Buildings, Cemeteries, Roads, Railroad centerlines, Quarries, Pipelines, Treelines (group), Water towers, Transmission towers, Electric substations, Water/drainage, Abutments, Foundations, Retaining Walls, Marshes, Tunnels, Road System, Alleys, Athletic courts, Billboards, Fences, Parking lots, Trails, Transmission poles, Dams, Hedges, Overhead signs, Driveways, Abandoned railroads, Culverts, Trees, Public sidewalks, Guard rails, Swimming pools, Silos/tanks, Poles (Utility/light/traffic signal)
Export of DGN format map files to AutoCAD DWG.
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DISCLAIMER OF WARRANTY AND ACCURACY: Unified Government of Wyandotte Co./Kansas City, KS (UG) makes no representations or warranties about this data or its content, including, without limitation: accuracy, completeness, or fitness for any purpose. Users of this data do so at their own risk; UG will not be liable to any such user for any loss or damage whatsoever.
Please send your written data requests to GeoSpatial Services by email, fax, or letter. We provide the 'GIS Digital Data Order Form' for this purpose. Call, write, or email us for a copy of this form. Email to: GetGISdata@wycokck.org Fax to: Att: GIS Data Requests Fax #: 913-573-4106 Mail to: Att: GIS Data Requests UG GeoSpatial Services Division 710 North 7th Street, Suite 200 Kansas City, KS 66101
Contact GSS for details
710 N. 7th Street, Suite 200