Tag: National Highway Institute

HEC-RAS Software: How Math Mitigates Flooding

In this City of Loveland, Colorado, map, the red line shows the HEC-RAS modeled 100-year floodplain that Ayres Associates completed in 2005. The yellow line shows the extents of the 2013 major flood, as measured by the City of Loveland. By John Hunt, Senior Hydraulic Engineer When it comes to 1-dimensional open-channel hydraulic analysis, the… Read More »

FHWA Hydraulic Videos Train Engineers

The Federal Highway Administration (FHWA) recently expanded its YouTube presence by creating a series of educational videos that showcase the use of a portable flume to visualize open-channel flow and culvert design concepts. The portable flume is a small open channel (6 inches wide and 5 feet long) that fits on a tabletop and recirculates… Read More »

Training Flume Helps Engineers Get Their Hands Wet – And Keep Their Roads Dry

How much water can a culvert pass? Which pavement inlets work best? Does a liner change a pipe’s capacity? What problems can arise when there’s just too much water? Federal Highway Administration (FHWA) and Ayres Associates engineers have designed a training tool to help transportation engineers answer these and many more questions about highway drainage… Read More »