Hennepin County Surveyor Map Maintenance

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Hennepin County SurveyorMap Maintenance

• PARCELS GEOGRAPHY / ATTRIBUTES
• CENTERLINES
• POINTS
• TAXING DISTRICTS
• ELECTION DISTRICTS
• OTHER DISTRICTS

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Hennepin County SurveyorMap Maintenance

• FOCUS OF THIS DISCUSSION
• PARCEL UPDATE NOTIFICATION
• PLATS
• LOT SPLITS / COMBOS
• ROAD VACATIONS / TAKINGS
• STREET CENTERLINES
• STREET NAME AND JURISDICTION CHANGES
• ATTRIBUTE CHANGES
• COSMETIC CHANGES
• COGO83 PROJECT CHANGES
• DATA EXTRACTION FORMATS
• DATA DISTRIBUTION METHODS

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Hennepin County SurveyorMap Maintenance

• NOT DISCUSSED TODAY DUE TO TIME LIMITS
• TAXING DISTRICTS MUNICS, SCHOOLS, TIF, ETC
• ELECTION DISTRICTS MUNICS, SCHOOLS,
  LEGISLATIVE, COMMISSIONER, ETC
• OTHER DISTRICTS - ZIP

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UPDATE RECEIPT PROCESS

• PLATS LICENSED LAND SURVEYOR FOR CHECKING
• PLATS ANYONE RELATED TO THE PLAT COULD BE
  FILING
• LOT SPLITS/COMBOS COME FROM PROPERTY OWNERS
• ROAD NAME/TURNBACKS FROM JURISDICTION
• CENTERLINES ADDED FROM NEW PLATS OR ROAD
  OPENINGS. ADDRESSES ARE ADDED FROM VARIOUS
  RESOURCES (USUALLY TAX ATTRIBUTES FROM PARCELS OR
  SHERIFFS INFORMATION).
• POINTS ADDED FROM NEW PARCELS ALONG WITH
  ASSOCIATED ATTRIBUTION FOR CURRENT AND PENDING
  TAX INFORMATION FROM AUDITORS PINS DATABASE
• TAXING DISTRICTS DOCUMENTS FILED WITH AUDITOR
  AND DISTRIBUTED TO SURVEY TO EDIT CURRENT
  DISTRICTS
• ELECTION DISTRICTS DOCUMENTS FILED WITH STATE
  AND AUDITOR, DISTRIBUTED TO SURVEY TO EDIT.
  USUALLY DONE DURING REDISTRICTING, BUT COULD BE
  AFFECTED BY TAX DISTRICT CHANGE (ANNEXATION)

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PARCELS

• PLATS
• LOT SPLITS / COMBINATIONS
• ROAD OPENINGS / VACATIONS/TAKINGS
• STREET CENTERLINE
• STREET NAMING CHANGES
• ATTRIBUTE CHANGES (ATB, PRECINCT CODE, PINS)
• COSMETIC CHANGES (ADJUSTING TEXT TO NEW COGO
  LINES)
• COGO LINEWORK CHANGES

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PLATS

• CICS NO MUNICIPAL REVIEW
• RLS MUNICIPAL REVIEW
• SUBDIVISION MUNICIPAL REVIEW

• PLATS ARE SUBMITTED BY LICENSED LAND SURVEYOR
  FOR CHECKING AND APPROVAL BEFORE FILING, ALSO
  CITIES MAY BE SEEING A PRELIMINARY PLAT PRIOR OR
  AT THE SAME TIME WE ARE CHECKING.
• PLATS CAN STAY IN OUR DRAWER FOR UP TO 2 YEARS
  (PURGED AFTER 2 YEARS) BEFORE THE DEVELOPER
  DECIDES TO FILE OR IS FILEABLE.
• PLATS THAT ARE SIGNED BY THE MUNICIPALITY MAY,
  FOR SOME REASON, NOT GET APPROVED BY
  COUNTY(USUALLY TORRENS PLATS)
• WE DO NOT ADD PLAT DATA TO MAP UNTIL PIDS ARE
  ASSIGNED BY AUDITOR OFFICE TO ENSURE NO NULL
  POLYGONS.

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PLATS (contd)

• PLAT DATA SUBMITTED AS POINT FILES TO SURVEYORS
  OFFICE
• CHECKED WITH COORDINATE GEOMETRY SOFTWARE THAT
  ASSIGNS UNIQUES LEVELS TO NEW LINEWORK
• NEW LINEWORK (DWG) IS IMPORTED, GEOMETRY AND
  ATTRIBUTION IS PROCESSED USING SEVERAL CUSTOM
  (ESRI) GEOPROCESSING MODELS (Figure 1)
• LINEWORK IS IMPORTED INTO THEIR RESPECTIVE
  FEATURE CLASSES IN SDE
• POLYGONS ARE CREATED FROM LINEWORK AND IMPORTED
  INTO SDE
• LOT DIMENSION ANNOTATION CREATION IS AUTOMATED,
  MANUAL COSMETIC FIXES ENSUE
• TURNAROUND IS USUALLY IS ABOUT 2-4 WEEKS FROM
  FILING, DEPENDING ON THE WORK LOAD
• PLATS HAVE THE HIGHEST PRIORITY TO COMPLETE DUE
  TO BANG-FOR-THE-BUCK.

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PLATS (contd)
Figure 1. Custom Geoprocessing Model Examples
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LOT SPLITS / COMBINATIONS

• SPLITS OR COMBINATIONS ARE SUBMITTED BY THE
  PROPERTY OWNER EITHER AS A DEED, PLAT (TO
  RECORDER) OR LETTER OF REQUEST(TO AUDITOR). THE
  AUDITOR WILL NOT ACCEPT THESE CHANGES WITHOUT
  CITY APPROVAL OR IN THE CASE OF A LENGTHY LEGAL
  DESCRIPTION , UNLESS PROVIDED BY A LICENSED LAND
  SURVEYOR.
• AUDITOR SUPPLIES DESCRIPTION AND PIDS TO
  SURVEYORS.
• SURVEYORS GET SPLIT / COMBINATION DESCRIPTION AND
  MAKE CHANGES TO EXISTING PARCELS.
• OLD PARCEL(S) GETS A FEATURE CLASS CHANGE TO
  PARCELDIV THAT DO NOT SHOW UP ON THE METROGIS
  EXTRACT, BUT DO SHOW ON THE FILE GEODATABASE.

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ROAD VACATIONS / TAKINGS

• PUBLIC ROAD AND ALLEY VACATIONS ARE INITIATED BY
  THE AUTHORITY THAT HAS JURISDICTION OVER THAT
  RIGHT-OF-WAY PASSED ON TO RECORDER AND/OR AUDITOR
  BY CITY COUNCIL RESOLUTION. THESE RESOLUTIONS ARE
  PASSED ON TO SURVEYORS OFFICE FOR CHANGES TO MAP
  DATA.
• SURVEYORS TRY TO ADD THESE AS SOON AS POSSIBLE
  ALONG WITH DOCUMENT NUMBERS, BUT THEY HAVE LOWER
  PRIORITY THAN PLATS OR SPLITS/COMBOS, UNLESS THEY
  ADD PROPERTY TO ADJACENT PROPERTIES. IF ENTIRE
  PARCEL IS TAKEN BY A DOCUMENT(S), THE PID MAY
  REMAIN AS A PID_IN_RTWY AND MAY REMAIN CURRENT,
  BUT NO POLYGON IS CREATED OR LEFT BEHIND.
• SURVEYORS GET RESOLUTIONS FROM AUDITOR AND PLACE
  THEM IN TO-DO BY DATE RECEIVED.

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STREET CENTERLINE

• PUBLIC ROAD OPENINGS FROM NEW PLATS ARE ADDED AS
  SOON AS POSSIBLE, AS THESE HAVE ADDED-VALUE FOR
  GEOLOCATION END-USERS (IE. SHERIFF, GIS, CITIES,
  ETC)
• ANY OTHER DOCUMENT OR INPUT THAT WOULD IDENTIFY
  OPENINGS OR CLOSURES ARE COMPLETED ON THE
  CENTERLINE IN A TIMELY FASHION.

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STREET NAME CHANGES

• PUBLIC ROADS ARE DEPENDENT ON THEIR RESPECTIVE
  JURISDICTION TO NAME THEM AND KEEP US INFORMED OF
  ANY UPDATES.
• PRIVATE STREETS ARE HARDER TO IDENTIFY - WE GLEAN
  INFORMATION FROM THE PLATS AND ORTHOPHOTOS.
• ROAD TURNBACKS FROM GOVERNMENT ENTITIES TO OTHER
  GOVERNMENT ENTITIES, QUESTIONS THE RENAMING OF
  THESE ROADS IN A TIMELY BASIS. I DO NOT HAVE A
  GOOD ANSWER FOR ALL TURNBACKS AS TO THE
  NOTIFICATION OF CHANGE. IT WOULD BE A GOOD IDEA
  IF THE CITIES RECEIVE OR TURNOVER ROADS TO
  ANOTHER ENTITY, THEY INFORM SURVEY OFFICE
  DIRECTLY.
• THESE CHANGES USUALLY HAVE AN EASY FIX AND ARE
  DONE QUICKLY.

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ATTRIBUTE CHANGES

• WE GET A MONTHLY CUT OF TAX INFORMATION (1ST OF
  THE MONTH) FROM OUR MAINFRAME THE TABLE IS
  JOINED TO THE PARCELS FOR METROGIS POINT
  POLYGON EXTRACTS (WHICH ARE RUN MONTHLY, BUT
  DISTRIBUTED QUARTERLY).
• FEBRUARY 15TH IS THE APPROXIMATE DATE HENNEPIN
  TURNS TAX DATA OVER TO THE NEW TAX YEAR.
• NEWLY CREATED PIDS IN THE CURRENT TAX YEAR WILL
  BE CURRENT THE FOLLOWING TAX YEAR. THEY MAY SHOW
  UP AS DIVISION-IN-PROCESS OR PENDING. THAT IS
  WHY WE KEEP THE UNDERLYING POLYGON AS A
  PARCEL_DIVIDED (BECAUSE THEY ARE STILL CURRENT)
• IN THE FILE GEODATABASE, SUBSTANTIAL ATTRIBUTION
  IS ATTACHED TO THE POINTS FEATURECLASS. THE
  POLYGONS ARE LIMITED TO ATB AND PRECINCT-CODE
  THESE ATTRIBUTES ARE MAINTAINED BY THE SURVEY
  DIVISION AND NOT EXTRACTED FROM THE MAINFRAME.

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COSMETIC TEXT CHANGES

• COSMETIC TEXT CHANGES ARE USALLY DUE TO THE
  SHIFTING OF LINEWORK DUE TO COGO83 PROJECT.
• THE COGO83 PROJECT TEAM RESEARCHES DEEDS AND
  IMPORTS RECTIFIED LINEWORK AND POLYGONS TO OUR
  SDE DATABASE.
• SOME LINEWORK MAY SHIFT SIGNIFICANTLY TO REQUIRE
  COSMETIC CHANGES TO ANNOTATION (TEXT) TO BE
  COMPLETED. (SEE COGO COMPLETION MAP)

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COGO83 PROJECT

• THE COGO83 PROJECT TEAM IS REDIGITIZING PARCEL
  LINES FROM RESEARCHED DEED DESCRIPTIONS, RECORDED
  PLATS, AND OTHER DOCUMENTS PERTINENT TO
  IDENTIFYING TAXABLE PROPERTIES.
• THIS IS A LONG-TERM PROJECT STARTED IN ABOUT
  2004 THE ESTIMATED YEAR OF COMPLETION IS 2012.
• BE AWARE THAT THE PROPERTY LINES IN YOUR CITY MAY
  MOVE.
• PROPERTIES NEAR WATER ARE MORE LIKELY TO MOVE DUE
  TO THIS PROCESS. THE PROPERTY LINES WILL MATCH
  MUCH BETTER TO THE AERIAL PHOTOS ONCE COMPLETED.
• THIS PROJECT IS NOT A SURVEY, THEREFORE THE LINES
  SHOULD NOT BE USED TO SURVEY FROM.

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DATA FORMATS

• AERIAL PHOTOGRAPHY
• DISTRIBUTED IN MRSID
• TIFF IS LIMITED TO REQUEST ONLY DUE TO SIZE OF
  FILES.
• SECTION TILES ARE STANDARD, BUT CAN ENVELOP A
  SMALLER AREA FOR SMALL LIMITED PUBLIC REQUESTS.
• 2009 AERIAL REQUEST FOR BIDS WILL BE GOING OUT
  SOON.
• HENNEPIN COUNTY IS REQUESTING TO HAVE A DECEMBER
  31, 2009 DELIVERY DATE IN THE BID.

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DATA FORMATS

• PARCELS SHAPEFILE
• COUNTY-WIDE PARCEL SHAPEFILE EXTRACT FOR METROGIS
• WE HAVE A PROCESS THAT CAN EXTRACT BY INDIVIDUAL
  OR MULTIPLE MUNICIPALITIES
• CUSTOM OFFSETS ARE ACCOMODATED
• IDENTICAL ATTRIBUTES TO THOSE OF METROGIS EXTRACT

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DATA FORMATS

• PARCELS FILE GEODATABASE
• LOOK AND FEEL OF OUR SDE DATA MODEL
• THE COMPLETE TAX INFORMATION TABLE IS OMITTED IN
  THE EXTRACTED GDB
• LIMITED ATTRIBUTES ARE ATTACHED TO THE POINTS
  FILE
• CAN BE JOINED TO THE PARCEL_BASE POLYGONS
• IDENTICAL ATTRIBUTES TO THOSE OF METROGIS EXTRACT

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DATA FORMATS

• DISTRICTS
• INDIVIDUAL LINE, POINT, OR POLYGON FEATURES CAN
  BE REQUESTED IN A SHAPEFILE FORMAT WITH
  FEATURE-ASSOCIATED ATTRIBUTION
• MOST OF THESE EXIST IN THE DISTRIBUTED FILE
  GEODATABASE

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DATA DISTRIBUTION

• MEDIA / METHODS
• CD (700MB)
• DVD (4.7GB)
• FTP
• CURRENTLY HAVING TROUBLE WITH INTERNET EXPLORER
  7.X SENDING DATA TO FTP SITES

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DATA DISTRIBUTION

• LICENSING
• CURRENT LICENSE AGREEMENTS MUST BE IN PLACE WITH
  THE ENTITIES AND THEIR CONSULTANTS
• FOR USE BY A CONSULTANT
• FOR DISTRIBUTION TO A CONSULTANT
• MOST MUNICIPALITIES ARE CURRENTLY LICENSED AND
  UNDER THE EXTENSION AGREEMENTS.

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DATA DISTRIBUTION

• DISCUSSION TO REVIVE HENNEPIN COUNTY FTP SITE
• STUDIES ON OTHER DISTRIBUTION METHODS
• HENNEPIN COUNTY IS WORKING ON A NEW
  FORMAT/PROCESS FOR LICENSING IN THE FUTURE

LOOKING FORWARD..
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