Wausau Department of Public Works - GIS Division Application of GIS Technology to Municipal Utility Operations Developing a Digital Inventory for Water,

Wausau Department of Public Works - GIS Division

Application of GIS Technology to Municipal Utility Operations

Developing a Digital Inventory for Water, Sanitary Sewer and Storm Sewer Utilities in the City of Wausau


1. Developing a Digital Inventory- History: Paper to Digital

- Adapting/Migrating Digital Systems

2. Maintaining the Digital Inventory

3. Low cost solution for digital map books

- Developer sample and PDFs


Wausau Water Works

• Service to over 14,300 households

• 200 miles of water - sewer mains

• 1,380 fire hydrants

• 21 sewage lift stations

• Treats1.5 billion gallons of water annually


In the beginning….(there were paper maps)


Developing Digital Inventory(Water and Sanitary Sewer – Round One)

• Water and Sanitary Sewer utility mapping began 1997

• Used BaySys/GeoIT/KEMA software and data modeling expertise

• First attempt to determine necessary features in data model

• Features collected with GPS


Arc Info 7.1.1 – UNIX – AML Based Editor


Arc Info 7.1.1 – UNIX – AML Based Editor


Data Scrubbing - Check Plots to Final Product


Developing Digital Inventory(Storm Sewer Utility)

• Storm Sewer mapping started in 2001• Moved away from custom programming• Used standard ESRI software with

BaySys/GeoIT/KEMA modeling expertise• Out of the box ESRI, Microsoft Access, and

Visio (UML)• Features collected with GPS or imported from

existing AutoCAD or ESRI coverages


Arc Info 8.X – Windows 2000 – Standard ArcMap Editor


Engineering Drawing Archive

• Scanned and cataloged over 16,000 engineering plans, maps, documents


Discrepancies


Developing Digital Inventory(Water and Sanitary Sewer – Round Two)

• 2002 - Convert UNIX applications to Windows• Bring all utility editing to one platform with

consistent attribute schemes• Good chance to remove unused attributes

and features• Features converted from ArcInfo Coverage

format to personal Geodatabases


Arc Info 8.X – Windows 2000 – Standard ArcMap Editor

Wausau Department of Public Works - GIS DivisionArc Info 8.X – Windows 2000 – Standard ArcMap Editor


Document Link Table

The feature-document relationships are many to many. So you can use the same record for several features.



Available Feature ClassesWater Utility• Water Main• Lateral• Casing• Hydrant• Valve - Fitting• Well• Reservoir• Pipe Fitting• Break/Leak• Maint. Table• Fire Flow Table• Frozen Lat. Table• Doc. Link Table

Sewer Utility• Gravity Main• Force Main• Lateral• Casing• Manhole• Lift Station• Cleanout• Grease Separator• Maint. Table• TvSurvey Table• Doc. Link Table

Storm Utility• Main• Lateral• Casing• Open Drainage• Storage Basin• Manhole• Inlet• Discharge Point• Flow Control• Meters/Pumps• Fitting• Cleanout• Doc. Link Table


Inlet Subtype• Inlet Box• Catch Basin• Scupper• Down Spout• Sump• Over Land Flow


Inlet Box Attributes

• Enabled• Administrative Area• Facility ID• Install Date• Location Description• Operational Area• Rotation• Life Cycle Status

• Work Order ID• Data Source• Elevation• Grate Type• Wall Material• Bottom• Sand Bagged• Flood Prone


Gravity Main Attributes

• ID• Material• Diameter• Status• Date Installed• Owner• Recorded Length• Slope

• Rehab Status• Drawing Status• Minimum Flow GPD• Maximum Flow GPD• Shape• Down Elevation• Up Elevation• Flow District


Available Hydrant Attributes

• ID

• Status

• Date Installed

• Manufacturer

• Model

• Serial Number

• Traffic Flange• Benchmark Location• Location Description• Nozzle Quantity• Nozzle Size• Valve Location Description


Maintenance?

But, I’m not done mapping!


Maintain the Digital Inventory

• Have an update strategy in place before data conversion begins– What type of changes can occur?– How will GIS editor be notified of changes?– How often will digital inventory be updated?– How many edits are anticipated?– “Map” out the workflow to cover all possibilities


Keep it Simple – Paper Trail

N ew C onstructionSend C onstruction P lans

R e-C onstructionSend C onstruction P lans

M aintenanceSend M aintenance R eport

H as C hange O ccurred?

-Edits manageable with paper trail-Good communication between departments-Education process for field staff to see what information can be captured-‘Seasonal’ updates following construction season coincide with yearly map book printing


WAUSAU WATER WORKS Water Distribution Repair/Maintenance Report

Date ____________________ Technicians ________________________________

Address ________________________________________________________________

Location _______________________________________________________________

Key # ____________________________________ Map No.(s) __________________

CIRCLE ONE Project # _______________________________ Water Service Service Repair Water Main Fire Hydrant 16450 967593580 967393580 967793580

MAINTENANCE ACTIVITY Original ____ Renewal ____ Stub? Y ___ N ___ Tap Size___________ Replaced ____ Relocated ____ Repaired ____ Off at Main ____ Cleaned ____ Leak ____ Change ____ Break ____ Other ____ Meter Size ___________________________

Valve/Tap Location ____________________________________________________

Plumber/Contractor ____________________________________________________

SEWER INFORMATION

Sewer in same trench as water? ____ Tap Fee $_________ LS Fee $_________

Location, if other ______________________________________________________

MATERIALS USED

Qty/Lnth Size Item _________ ________ _______________________________________________

_________ ________ _______________________________________________

_________ ________ _______________________________________________

_________ ________ _______________________________________________

_________ ________ _______________________________________________

_________ ________ _______________________________________________

_________ ________ _______________________________________________

Labor ______________ Waste Copper - less than 7' _________________________

EXCAVATION DESCRIPTION

Location _______________________________ Size _________ ft. x __________ ft. Concrete Pavement ____ Asphalt Pavement ____ Sidewalk ____ Curb ____ Driveway ____ Other ________________ Black Dirt ____ Granite ____ Comments/Notes: _______________________________________________________

_______________________________________________________________________

Draw map of work on back - or attach copy of system map with changes


Maintain the Digital Inventory

• Water Utility:– tracking hydrant flushing, freeze-ups, breaks, leaks

• Sanitary sewer:– tracking: rodding, jetting, flushing,video surveys

• Storm Utility:– tracking cleaning activities


System Benefits – Future Plans


Benefits• Complete digital inventory with ability to query, display

and create maps at any scale• Accurate positional accuracy (not relative accuracy

anymore)• Ability to quickly share digital information with

developers, and engineers for site design• Automated map book process

– Blue-print machine removed, reduced staff time

• Increased available office space (no more map cases)• Faster response time to satisfy requests for

information


Future Plans• Move to multi-user environment/database

– “SDE in 2003”– To give water/sewer utility staff ability to edit

maintenance reports/data

• New GPS and base (Survey Grade RTK)• Develop an ArcIMS Utility Viewer• Storm Utility: Finish?!?!?!?

– East side completed. Working westward.– Slow process due to many new features never

mapped before (inlets and laterals)

• Field access?


• ESRI Developer Sample – Map Book– http://arcobjectsonline.esri.com

• ESRI ArcInfo 8.2

• Adobe Acrobat 5.0/Distiller

Creating a Digital Map Book


Create Template – Include polygon theme for tiles


Follow Map Sheet Wizard


Set additional map sheet properties

- Scale, rotation, clipping

- Label neighboring tiles

Open source code to allow for customization


Export pages to PDF


Use Adobe Acrobat to create links to pages

Documents

Wausau Department of Public Works - GIS Division Application of GIS Technology to Municipal Utility Operations Developing a Digital Inventory for Water,