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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 in RAS Mapper issue
  • Max water surface profile issue
  • Alternative overbank deposition
  • ...

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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.

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

Requirements for Detailed Measureable Goals and Procedures, Public Notice Adjustments

The revised permit will include changes in requirements that affect all Small MS4s.
Key changes include:

  • Identification of clear, specific and measurable annual goals
  • Development of standard operating procedures
  • Public notice and public reporting

Remind Me, What is a Small MS4?

A "municipal" separate storm sewer system (MS4) is a storm system owned or operated by a public entity like a city, flood control district, county or public agency...

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TagsMS4, Phase II MS4, Stormwater, stormwater management,

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 on the public comment period, ...

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

In response to the devastation of Hurricane Harvey, as well as six other federally-declared flood emergencies in the state since 2015, the Texas House Committee on Natural Resources was commissioned to evaluate the roles of public entities in flood control and to incorporate recommendations from the Texas Water Development Board...

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TagsHurricane harvey, texas legislature, Flooding, Hurricane, state flood assessment,

Freese and Nichols welcomes Krista Bethune Melnar, PE, an accomplished project manager experienced with large federal contracts as well as state and local resiliency projects, as the new Stormwater Practice Leader. She also will manage the Central Texas Stormwater Group, including the Austin and San Marcos offices, to support the needs of clients in that region.

Krista has more than 19 years of experience in Texas and nationally, providing innovative solutions...

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TagsStormwater, FEMA, federal, resiliency,

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...

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

Freese and Nichols' Kim Patak will present “When Rivers and Infrastructure Collide,” Jan. 23 at the Texas Regional Stormwater Conference in New Braunfels.

Millions of dollars are spent each year repairing America’s infrastructure due to damage from stream erosion. Concepts of fluvial geomorphology, planning and holistic engineering are integrated into the resiliency approach to prevent, protect, respond and recover from problems caused by...

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Tagsresiliency, Flooding, stream erosion, Erosion, Infrastructure,

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