02-09-2015 Council Packet - Laserfiche WebLink

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r . � Mr.Adam Edwards � 4^ January 20,2015 � � ' Page 2 mapping process to generate the pipe network for the sanitary sewer system. This will include using existing GIS Mapping as a guide to how the pipe networks are inter connected with the GPS collected structure locations. All pipe attribute information that is available in the existing GIS including pipe size, material type and year installed will be included as pipe attributes during the mapping process. All pipes will be drawn based on the perceived direction of flow and will be topologically correct. All GIS data will be created in an ESRI compliant Geodatabase and be available immediately in the Orono web GIS application. Task 2—Water Distribution 5ystem Mapping Improvements Upon project initiation,Bolton&Menk will work with city staff to verify all GPS collected points have been provided.Bolton&Menk will review all collected points and replace existing schematic infrastructure locations with those that have been collected through GPS. We will then initiate the utility mapping process to generate the pipe network for the water distribution system. This will include using existing GIS Mapping as a guide to how the pipe networks are inter connected with the GPS collected structure locations. All pipe attribute information that is available in the existing GIS including pipe size, material type and year installed will be included as pipe attributes during the mapping process. All pipes will be drawn based on the perceived direction of flow and will be topologically correct. All GIS data will be created in an ESRI compliant Geodatabase and be available immediately in the Orono web GIS application. Task 3—Storm Sewer System GPS Collection & Mapping Bolton&Menk will complete a GPS data collection of the storm sewer system using a Trimble sub-foot mapping grade GPS data collector.Bolton&Menk will use existing schematic utiiity mapping when available as a guide during the collection. In the absence of mapping however,all city owned streets will be inspected to determine whether storm sewer infrastructure exists.All attempts will be made to collect a GPS location for infrastructure which can be identified from the ground surface and that falls within city owned right of way. Structure types that should be a part of this collection and identified accordingly would include manholes, catch basins,inlets,outlets and other storm system components. Based on current estimates we expect approximately 800 storm structures. Bolton&Menk will provide trained staff and equipment for the collection of the storm sewer structure locations.We will also provide maps showing collected points for City Staff to review and for quality assurance. Bolton&Menk will also complete all post processing of the collected GPS data. Following the completion of the GPS collection,Bolton&Menk will initiate the utility mapping process to generate the pipe network. At this time there is no storm sewer mapping which can be used as reference. In order to generate the pipe network it will require record plan research as well as cooperation of city staff for field verification. All GIS data will be created in an ESRI compliant Geodatabase and be available immediately in the Orono web GIS application.