A new pair of geodetic datums are set to be produced by NOAA’s National Geodetic Survey (NGS). These datums will modernize the National Spatial Reference System (NSRS) by replacing the North American Datum of 1983 … Continued
Repeatedly flooded properties have cost the National Flood Insurance Program (NFIP) more than $12.5 billion – roughly half of the program’s $23 billion debt with losses continuing to trend in the wrong direction. This troubling … Continued
Floodways, the portion of a floodplain with moving water during a flood event, are useful tools for regulating development in a floodplain. In a regulatory floodway, FEMA allows some development in the natural floodway if … Continued
The Federal Emergency Management Agency updates their guidance documents annually – with final guidance published in November each year. With 2 dimensional engineering models becoming more common there is a need to update FEMA’s guidance … Continued
The Federal Emergency Management Agency (FEMA) has a process for revising Flood Insurance Rate Maps. A Letter of Map Revision (LOMR) is FEMA’s official modification to an effective Flood Insurance Rate Map (FIRM). Coastal LOMRs … Continued
Proposed encroachments into a floodway are only allowed if the encroachment will not cause an increase in flood elevations. To assist local governments in North Carolina, the state has developed a guidance and review process … Continued
CHARM or the Community, Health and Resource Management tool provides instant feedback to community planning options. CHARM helps communities see how planning decisions made today will impact tomorrow’s community through a participatory mapping approach with … Continued
The Federal Emergency Management Agency has a process for revising Flood Insurance Rate Maps. A Letter of Map Revision (LOMR) is FEMA’s official modification to an effective FIRM. LOMRs can result in a physical change … Continued
CHARM or the Community, Health and Resource Management tool provides instant feedback to community planning options. CHARM helps communities see how planning decisions made today will impact tomorrow’s community through a participatory mapping approach with … Continued
The Association of State Floodplain Managers recently completed a study that researched current procedures for mapping floodways and analyzed how these procedures are aligned with the original intent of the regulatory floodway. This assessment reviewed … Continued