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A cornerstone of FEMA's National Flood Insurance Program is Map Modernization. One of this program's main goals is to produce timely digital updates of flood hazard maps for the entire nation. But while Map Modernization strives to improve map production, much of the data development relies on tedious manual engineering techniques. Given formidable time constraints and a lack of accurate digital data for some projects, procedures to streamline these manual techniques were developed using GIS technology, producing significant time savings. These procedures created and enabled data to be utilized by several different applications, while reducing the need to pass hard-copy maps with markups and comments between engineering and GIS staff. Manual techniques that would normally take one week to complete were reduced in some cases to eight hours. This paper will describe several procedures that were used to complete such a project in FEMA Region 5.