2004 UC Proceedings Abstract

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ArcGIS Spatial Analyst Helps Model Water Availability During the August 14th Blackout
Track: Water, Wastewater, and Stormwater
Author(s): Brian Wopershall, Chris Davis

The Cleveland (Ohio) Division of Water has four main pump stations that deliver treated Lake Erie water to approximately 1.5 million customers. At 4:11 pm on August 14, 2003, these pumps were knocked out by the blackout that hit most of the Northeast United States. Using ArcInfo 8.3 and the Spatial Analyst extension, elevation data and hydraulic grade information taken at Cleveland Water facilities were utilized to produce hour-by-hour raster plots of water pressure and estimates of the number of customers without water from the time of the blackout until service was restored. With these plots, the impact of the outage could be realized on a detailed level, both spatially and temporally.

Brian Wopershall
Cleveland Water
Distribution Engineering
1201 Lakeside
Cleveland , OH 44111
US
Phone: 216-664-2444
E-mail: brian_wopershall@clevelandwater.com

Chris Davis
Cleveland Division of Water
1201 Lakeside Ave.
Cleveland 44114
US
Phone: 216-664-2444
E-mail: chris_davis@clevelandwater.com