Tag: River Engineering

FHWA Publishes Reference for 2D Hydraulic Modelers

By Dusty Robinson, PE In recent years the popularity of 2D hydraulic modeling has grown, thanks in part to the fact that newer versions are easier to use and are helping modelers better communicate complex hydraulic concepts of real-world river systems. About the Expert: Dusty Robinson, PE, is a water resources engineer in Ayres’ Fort… Read More »

River Hydraulics in Steep Canyon Environments

This is a view of US 34 within the Big Thompson Canyon during the final repair phase in late 2017. By John Hunt, PE; Will deRosset, PE, CFM; and Anthony Alvarado, PE, CFM The September 2013 flood in Colorado devastated the northern Front Range, causing widespread damage to critical infrastructure and transportation networks. Hundreds of… Read More »

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 »