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On April 21, the U.S. Army Corps of Engineers (USACE) and U.S. Environmental Protection Agency (EPA) issued the Final Navigable Waters Protection Rule (NWPR) by publishing in the Federal Register a final rule that defines the scope of waters federally regulated under the Clean Water Act (CWA).

Defining what constitutes a “water of the United States” is the second step in a comprehensive, two-step process intended to review and revise...

Read More - USACE, EPA Issue 2020 Navigable Waters Protection Rule

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TagsWOTUS, waters of the united states, USACE, EPA, NWPR, Clean Water Act, CWA,

On April 15, Federal Judge Brian Morris of the Montana District Court issued a summary judgement challenging the decision of the U.S. Army Corps of Engineers (Corps) to reissue Nationwide Permit (NWP) 12 in 2017.

The action was brought forth by the Northern Plains Resource Council (Plaintiffs) against the Corps for its decision on the Keystone XL Pipeline. TC Energy, the project proponent, and the State of Montana and American...

Read More - Court Order Impacts Section 404 Permitting for Utility Lines

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Tags404 Permitting, utilities, USACE, pipeline,

USACE has released version 4.4 of the HEC-HMS software after a year of development. New features include:

  • GIS toolkit for subbasin and reach delineation based on input terrain data
    • Future releases are set to include computation of parameters
  • New methodology for losses and baseflow to improve continuous simulation functionality
  • Custom Temporal Precipitation pattern inputs
  • Visualization tools
  • Improved simulation framework to reduce simulation run time
  • ...

Read More - HEC-HMS 4.4 Released

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TagsUSACE, HEC-HMS,

The Stormwater group has added four experienced engineers in North Texas.

They are Holly Ahumada in Fort Worth, Chris Johnson in Denton, and Mark Scheurer and Dawit Zeweldi in Dallas.

All are registered professional engineers and certified floodplain managers and offer a diverse skillset to help address complex flood control and drainage challenges for clients locally, regionally and nationally. Their broad-ranging backgrounds include floodplain mapping, channel design and work with municipalities and the...

Read More - North Texas Stormwater Team Expands With Four Experienced Engineers

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TagsStormwater, North Texas, TSPE, tema, TXDOT, corps, USACE,

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

The 5.0.7 updated features fixes include:

  • Bug for drawing a polygon in the Manning’s n Regions option
  • Bug for uniform lateral inflow
  • Floodway inundation boundary mapping issue
  • RAS Mapper not saving all breakline options issue
  • External SA/2D hydraulic structures Issue
  • Lateral structure connection to 2D Area issue
  • 1D velocity and DV mapping
  • ...

Read More - HEC-RAS Version 5.0.7 Released

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TagsHEC-RAS, USACE,

Eighteen months after Hurricane Harvey devastated the Texas Gulf Coast , recovery efforts and flood management projects continue as the region improves its resiliency for future events. Although unprecedented, Houston's catastrophic flooding from Harvey was not without foreshadowing. Tax Day 2016, Memorial Day 2015 and other storms had caused similar flooding across portions of the Greater Houston Area.

Hurricane Harvey was an unprecedented storm, resulting in $125 billion in...

Read More - Tunneling Offers a Solution to Houston's Flooding Problems

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TagsTunneling, Flooding, Stormwater, houston, Hurricane harvey, USACE, Groundwater, Texas, flood management, reservoir,

Due to the government shutdown, the U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (USACE) had to re-schedule a webinar and public hearings for the proposed new definition of "Waters of the United States."

A 60-day comment period will begin once the new proposed rule is released in the Federal Register, which is expected to be as early as Feb. 11. For more information...

Read More - Water of the United States Webinar and Public Hearings Announced

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TagsWOTUS, section 404, Clean Water Act, USACE, EPA,

The U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (USACE) have proposed a new definition of "Waters of the United States."

This new definition will clarify what is considered a federally protected waterway and a state protected waterway as part of Section 404 of the Clean Water Act. The press release regarding the proposed definition can be viewed here .

A...

Read More - New "Water of the United States" Definition Proposed

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TagsWOTUS, section 404, Clean Water Act, USACE, EPA,

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