You are here

The USACE has released a new version of HEC-RAS that has several new features.

Those features include enhancement to storage area/ 2D hydraulic connections, variable time steps, internal boundary conditions lines for 2D areas, new velocity term for 2D flow area boundary conditions and RAS Mapper editing tools. 

Other minor enhancements were added and repairs were made as well.

For a more detailed description of the changes...

Subscribe to our Blogs

TagsHEC-RAS, USACE,

Freese and Nichols will attend and present at the Texas Floodplain Management Association (TFMA) conference on March 6-9 at Horseshoe Bay Resort. We look forward to seeing you at our booth (No. 210) or at one of our presentations or workshop.

Title: Introduction to HEC-RAS 2D Workshop 
8 a.m. – 5 p.m. ...

Subscribe to our Blogs

TagsTFMA, HEC-RAS,

John Rutledge, Patrick Miles, and Garrett Johnston, all professional engineers with Freese and Nichols, conducted a three-day HEC-RAS 2D workshop in Oklahoma City, hosted by the Oklahoma Water Resources Board (OWRB) Dam Safety program. Discussion and activities focused on applications and benefits of HEC-RAS 2D modeling; RAS Mapper and terrain preparation; running 1D and 2D models including dam, levee, and breach modeling; viewing results with RAS Mapper; troubleshooting and model review. The workshop included a number of hands-on modeling...

Subscribe to our Blogs

TagsOklahoma Water Resources Board, HEC-RAS,

John Rutledge, Patrick Miles, and Garrett Johnston, all professional engineers with Freese and Nichols, conducted a three-day HEC-RAS 2D workshop in Oklahoma City, hosted by the Oklahoma Water Resources Board (OWRB) Dam Safety program. Discussion and activities focused on applications and benefits of HEC-RAS 2D modeling; RAS Mapper and terrain preparation; running 1D and 2D models including dam, levee, and breach modeling; viewing results with RAS Mapper; troubleshooting and model review. The workshop included a number of hands-on modeling...

Subscribe to our Blogs

TagsOklahoma Water Resources Board, HEC-RAS,

The USACE has released a new version of HEC-RAS that supersedes versions 5.0.1 and 5.0.2 (which was withdrawn due to major bugs). The new version fixes several bugs and includes new and improved features like culvert inlet/ outlet control, using 2D flow equations at lateral structures, flow and volume time series output for profile lines in RAS Mapper, and profile line point and tick marks. For more info on the new version and to download the model, check out the links below.

Release Notes:...

Subscribe to our Blogs

TagsHEC-RAS,

This article is the first in our blog series on HEC-RAS modeling. Be sure to check back for subsequent series articles.

Background

The Federal Emergency Management Agency (FEMA) regulates development within the 100-year floodplain by administrating the National Flood Insurance Program (NFIP). Communities that participate in the NFIP must prevent excessive development within the floodplain that could cause increases in potential flood damage. FEMA also does not allow development to occur within the floodway, which has a maximum allowable surcharge of...

Subscribe to our Blogs

TagsHEC-RAS, Floodway, floodplain, 100-year flood, FEMA,

UPDATE: The USACE posted the following update on their website, regarding HEC-RAS Version 5.0.2 - “We've temporarily taken down HEC-RAS 5.0.2 to investigate a critical bug with simplified physical breaching computations. We will be releasing a 5.0.3 soon to fix this issue. We apologize for any inconvenience that this might cause. If you need to download HEC-RAS in the meantime please use the 5.0.1 download links available in the archived versions section below.”

Original Post: The USACE has released a new version of HEC-RAS that...

Subscribe to our Blogs

TagsHEC-RAS,

The U.S. Army Corps of Engineers recently released HEC-RAS 5.0.1, which fixes a few computational bugs that were identified in HEC-RAS 5.0. Download the new version at the link below.

http://www.hec.usace.army.mil/software/hec-ras/downloads.aspx

 

 

Subscribe to our Blogs

TagsHEC-RAS,

Pages