Sewall to Map Infrastructure and Design Geodatabase for Village of Briarcliff Manor, NY
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Sewall to Map Infrastructure and Design Geodatabase for Village of Briarcliff Manor, NY

(Old Town, Maine--2 September 2003) The Village of Briarcliff Manor, New York, has contracted national GIS consulting firm James W. Sewall Company to map the Village's infrastructure assets and to design a geodatabase that integrates the mapping with Westchester County's existing GIS landbase. Utilizing black-and-white aerial photography at 1"=350' scale, Sewall will capture sanitary, storm, and water system features through photogrammetric methods, significantly reducing the need for GPS field location while maintaining National Map Accuracy Standards (NMAS). To support efficient data maintenance and the development of future datasets, Sewall will design and implement ESRI's geodatabase, integrating the new infrastructure mapping with digital orthophotography, road centerline data, and other GIS datasets available from the Westchester County GIS. The geodatabase model, together with asset management software and ESRI's ArcIMS for on-line updates, will provide the Village a critical tool to manage infrastructure assets for General Accounting Standards Board Statement No. 34 (GASB34) compliance.

Sewall's New York Division Weiler Mapping will manage this project out of the Elmira, New York, office. Weiler Mapping has significant mapping experience in Westchester County and is currently under contract to eleven municipalities, including the towns of Mt. Pleasant and Ossining. With the completion of this project, Briarcliff Manor will be the first municipality in New York to have a fully integrated municipal GIS driven by a geodatabase, providing a model for Westchester County and the State as a whole.

Weiler Mapping President John Trimber, LS, says, "The State of New York has identified three framework data sets that every municipality needs for effective implementation of GIS technology--digital orthophotography, tax maps, and road centerlines. All municipalities will eventually use GIS technology to manage infrastructure assets and meet GASB34 reporting requirements. This project will be the first in New York to provide full municipal infrastructure management based on the three framework data sets and using the new efficient geodatabase technology."

Sewall completed flying the photography for this project in April 2003, using airborne GPS and inertial measurement unit (IMU) technologies. New York surveying firm Weiler Associates manned the base stations on the ground.

The Village of Briarcliff Manor is a 5-3/4-square-mile area located 30 miles north of New York City in Westchester County. The Village has a population of approximately 7,000 people and is situated within the Town of Ossining and the Town of Mt. Pleasant.

Founded in 1880 as a surveying and engineering firm, Sewall has provided comprehensive GIS consulting services to government, utility companies, and the forest industry since the 1970s. Sewall's expertise in GIS project implementation is supported by 50 years' experience in aerial photography and landbase mapping and 30 years' experience in data conversion and application development. Earlier this year, Sewall acquired Weiler Mapping, a firm with over 30 years' experience in parcel-based GIS. Weiler has completed projects for 29 counties in New York State and for many towns throughout Westchester County and New England. Sewall and Weiler have implemented a successful Web-based data maintenance program and are assisting clients in database migration to ESRI ArcGIS. Sewall is a corporate business partner with ESRI and an authorized developer of ESRI software.

For more information on this project, contact John Trimber, President, Weiler Mapping, at (607) 795-5487; Email: Email Contact