PUBLIC WORKS MAPPING/GIS

Todd Law, PE, Director of Public Works

Montpelier

Gary KingEngineer Tech, Brattleboro

Public Works

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PUBLIC WORKS GIS

Early GIS Mapping hired outPlanning office, Town planParcel mapping for Listers

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PUBLIC WORKS GISStarted with 60 day trial version of Arcmap

I was hooked

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PUBLIC WORKS GIS

GIS COMMITTEE1 or 2 from departments interested

Meet once per month

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PUBLIC WORKS GIS

2004, RFP for GIS needs assessment

Hired PeopleGIS, Arlington, MA

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Created a mapsonline site for Brattleborowww.mapsonline.net/brattleborovtAlso a staff site And department specific sites

PUBLIC WORKS GIS

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PUBLIC WORKS GIS Cartographic Assoc., Littleton, NH

Parcel mapping and Created building foot print

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PUBLIC WORKS GIS

2005, Contracted for gps locating with CAI

Water, Hydrants & valvesSewer manholes

Drainage structures & culverts

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PUBLIC WORKS GIS

Attributes collected only for drainageLabeled water and sewer structures with

existing ID numbers

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PUBLIC WORKS GIS

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PUBLIC WORKS GIS

Purchased 2 copies of ESRI Arcmap

Public Works Dept.Planning office

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PUBLIC WORKS GIS

Purchased Public Works Information Management software (PWIM) from CAI.

Extension for ArcmapAllows for topology

Direction of flowCurrent data stored in a Personal Geodatabase

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PUBLIC WORKS GIS

MAPPINGUsing PWIM, mapped all water and sewer lines Based on:

➔GPS located structures➔Existing hand drawn maps

➔Plans on file➔Personal knowledge

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PUBLIC WORKS GIS

Water and SewerUsing the ID numbers entered with collected structuresCreated a join between database and gps data for: Hydrants, Valves, & Sewer manholes

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PUBLIC WORKS GIS

Drainage mapping

Culverts mapped with GPS, DoneCollected size, material, condition,

& flow direction

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PUBLIC WORKS GISIn Town drainageAn on going project

Data difficult to collect

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PUBLIC WORKS GIS

DrainageWe have:

618 Culverts 1851 Drop inlets105 Drain manholes

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PUBLIC WORKS GIS

Data Maintenance

Inventive techniques without gpsField measuring, ortho use, etc

Used CAD files for a couple of larger projects

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PUBLIC WORKS GIS

Mapped with out GPS

Sidewalks; walked all and added stop/start points visible in GISWater curb stops and service lines from office information

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PUBLIC WORKS GIS

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PUBLIC WORKS GIS

AccuracyA big concern early on

Less so over time with experience

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PUBLIC WORKS GIS

2010 GPS Purchase

Trimble GeoXTExternal antenna

Terrasync and Pathfinder software

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PUBLIC WORKS GIS

Map book

3 years ago produced map book direct from Arcmap, first with DsMapBook then data driven

pagesReplaces hand drawn maps

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PUBLIC WORKS GIS

Advantages

GIS map book is a hit with crewEverything is to scale

Easier to locate structures in the fieldHelps to puzzle out unknowns

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PUBLIC WORKS GIS

Putting pieces of data together

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PUBLIC WORKS GIS

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PUBLIC WORKS GIS

Highway and related mapping

Sidewalks: condition & plow routesTown Roads, Pavement condition (RSMS)

Retaining walls, GOOGLE MAPRoad plow routesCulverts, drainage, & bridges

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PUBLIC WORKS GIS

Town related mappingParking lotsMunicipal building locationsTown owned street lightsWater shed property roads and trails

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PUBLIC WORKS GIS

ProblemsLearning GIS can be difficultLittle training, on your ownTerminology, Frustration

Cost

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PUBLIC WORKS GIS

PDF MAPShttp://www.brattleboro.org/

http://homepages.sover.net/~brattdpw/

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PUBLIC WORKS GIS

Thank You

Gary King, gking@brattleboro.org, 802-254-4255Todd Law, TLaw@montpelier-vt.org,