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Owners or engineers who have a project that is near, approaching or crossing a levee often ask, “Do I need a 408 permit?”

What Is the Section 408 Permit?

The Section 408 permit is a requirement for altering a U.S. Army Corps of Engineers (USACE) civil works project. We all generate questions...

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Owners or engineers who have a project that is near, approaching or crossing a levee often ask, “Do I need a 408 permit?”

What Is the Section 408 Permit?

The Section 408 permit is a requirement for altering a U.S. Army Corps of Engineers (USACE) civil works project. We all generate questions...

Subscribe to our Blogs

TagsLevees,

The U.S. Army Corps of Engineers (USACE) is targeting late 2015 for an update to the Engineering Manual (EM) for Design and Construction of Levees, EM 1110-2-1913, that will be available to the public. USACE anticipates that, within a couple of years, sufficient user comment will have been collected to require an additional update.

An extremely important and significant alteration to the USACE engineering design approach will be presented and will have impact far...

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Co-authored by Hector Olmos, P.E., CFM

visualizing levee failures 2D techniquesFreese and Nichols developed an Emergency Action Plan (EAP) for a Levee Improvement District in Fort Bend County, Texas. The purpose of the EAP is to outline the actions that need to be implemented before, during and after a breach of the levee. In order to better define the actions that need to take place after a breach of the levee, our team developed a hydraulic model of the...

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TagsLevees, InfoWorks, Emergency Action Plan,

Freese and Nichols’ Houston office hosted a tabletop exercise for the Fort Bend County Levee Improvement District No. 2 (LID#2) on Friday, Sept. 26. Rita Anderson, Water Resources Design, Houston, facilitated the exercise, which was attended by representatives of the District’s operations contractor, StormWater Solutions; the District’s Engineer of Record, Costello Engineering; and the District’s General Manager, Mike...

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In March 2011, FEMA agreed to end its policy of disregarding non-accredited levees and flood structures in the process of updating FIRMs. This “all or nothing” approach to evaluating levees and the flood risks behind them affects levee owners who cannot or will not develop technical data for FEMA accreditation of their levees.

New Rules Proposed, Now Being Finalized
FEMA has now proposed new rules for “Analysis and Mapping Procedures for Non-Accredited Levees.” These rules were provided for public review, and the comment period ended January 30. FEMA is now...

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FIRMs Under Review With a Focus on Levees
In 2005, Hurricane Katrina demonstrated that levees are not created equally, nor do they all age gracefully. Prior to the breach of the Mississippi River levee in New Orleans, flood delineations shown on Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps (FIRMs) indicated that the areas behind levees were protected – that is, outside the flood limits of the base flood. Motivated by the impacts of Hurricane Katrina and other storm events throughout the U.S., FEMA is now reviewing and revising (as appropriate)...

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TagsLevees, FEMA,