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Check out our upcoming TFMA presentations

Freese and Nichols will attend and present at the Texas Floodplain Management Association (TFMA) Fall Technical Summit from Aug. 29 to Sept. 1 in San Antonio.

Catch one of our presentations or workshops:

Tuesday, Aug. 29

Workshop 3 – Introduction To HEC-RAS 2-D

Time: 8 a.m. to 5 p.m.

Instructors: Garrett Johnston, P.E., CFM (FNI); Patrick Miles, P.E. (FNI)

Topic: This hands-on workshop will provide an overview of the new capabilities of HEC-RAS 5, with a focus on modelling 2-D surface flow. Class time will alternate between brief lectures and instructor-led hands-on practice with HEC-RAS at individual computers. Participants are expected to bring their own laptops to run HEC-RAS and should have some familiarity with HEC-RAS 1-D modeling.

 

Wednesday, Aug. 30

H&H System Performance and Cross-Drainage Analyses for the Texas Bullet Train

Time: 1 p.m. to 1:30 p.m. (Track C)

Presenters: David Rivera, Ph.D., P.E., CFM (FNI); Cory Stull, P.E., CFM, GISP (FNI)

Topic: The proposed Texas High Speed Rail (THSR) will connect the North Texas Region with the City of Houston, traversing an approximately 240-mile alignment in less than 90 minutes. Nearly 900 unique drainage crossings with a combined contributing drainage area of nearly 7,000 square miles were studied to identify cross-drainage infrastructure, mitigation and freeboard requirements.

Near its Dallas section, the THSR will cross over a portion of the Trinity River segment of the USACE Dallas Floodway Project. This presentation will discuss the analysis and permitting processes required to obtain a Corridor Development Certificate and 408 authorization for the crossing of the Trinity River and will present some of the time-saving automation tools that were developed to quickly analyze and size drainage infrastructure for the rail alignment alternatives, and how this approach could also be applied to other linear development projects.

 

Midland and Jal Drawing Planning: A Case Study

Time: 1:30 p.m. to 2 p.m. (Track C)

Presenters: Jeffrey Cohen, P.E., CFM (City of Midland); Heather Keister, P.E., CFM (FNI)

Topic: In 2013, the City of Midland experienced a high rate of growth to the northwest along the Midland and Jal Draws. The governing drainage study was completed most recently in 1996 and planning was needed beyond the limits of that study. The purpose of this project was to develop updated existing and fully developed condition floodplain information, as well as a master plan and conceptual design of drainage improvements and channel corridor to help guide development adjacent to the draws for approximately 100 square miles of a 300-square mile watershed. 

Based on the anticipated development and the results of the detailed study, FNI developed proposed channel and crossing improvements within the study limits. Twelve Capital Improvement Projects (CIPs) were identified, including conceptual designs and cost opinions. Since completion of the study, the City has used the proposed channel corridor information in working with developers to help guide and expedite development. The City is beginning to implement the project, using public/private partnerships to build the channel.

 

HEC-RAS 2-D and Emergency Preparedness: A Case Study of the Brazos River

Time: 4 p.m. to 4:30 p.m. (Track C)

Presenters: Jeremy Dixon, P.E., CFM (FNI); Hector Olmos, P.E., CFM (FNI); Mike Stone, PMP, CFM (Mike Stone Associates, Inc.)

Topic: The Fort Bend Grand Parkway Toll Road Authority – Segment D Bridge crossing the Brazos River in Fort Bend County is designated as a Major Evacuation Route by the Texas Department of Emergency Management. During a period from May 2015 to August 2016, the Brazos River eroded the north bank of the river near the bridge by approximately 90 feet. The erosion exposed piers and pier caps and induced a 25-feet deep scour hole along the flowline of the river. Freese and Nichols contracted with the Fort Bend Grand Parkway Toll Road Authority to develop a Preliminary Engineering Report, which documented the existing conditions and proposed emergency repairs to keep the bridge in service while a more complete regional solution could be designed and implemented.

This presentation will document the background of the situation on the Grand Parkway bridge crossing of the Brazos River, stakeholder engagement and proactive strategies to maintain business-as-usual for the public. The H&H component will explore the traditional and innovative modeling approaches, data requirements, lessons learned, how accurate bathymetry is essential for an accurate analysis, and how the H&H analysis helped shape potential solutions to maintain the integrity of the bridge.

 

Thursday, Aug, 31

Rain Drops Keep Falling on my Dam: An Overview of TCEQ’s Revised Probable Maximum Precipitation Depths

Time: 3 p.m. to 3:30 p.m. (Track E)

Presenters: Patrick Miles, P.E. (FNI)

Topic: The Texas Commission on Environmental Quality (TCEQ) released revised Probable Maximum Precipitation (PMP) values in January. PMP depths are used to develop the Probable Maximum Flood (PMF) for analysis of the hydraulic adequacy of dams. This presentation will discuss the details of the revised PMP depths, how they were developed and how they should be obtained and applied for dam-specific analyses. Various case studies will also be discussed that demonstrate the effects the revised PMP depths have on existing dams throughout the state.

 

An Update for the Delaware Creek Channel Improvements

Time: 4 p.m. to 4:30 p.m. (Track F)

Presenters: Justin Oswald, P.E., CFM (FNI); Garry Fennell, P.E., CFM (City of Irving)

Topic: The Delaware Creek watershed in Irving was developed in the 1960s, and the creek and its tributaries were constructed as concrete-lined channels within narrow right-of-way. The channels were in many cases not designed to the flood control standards of today, and the main stem is a FEMA mapped floodplain. To resolve existing and expected flooding, a series of channel improvements have been under design and construction since 2012. This presentation will give an overview of the flooding problem, describe the alternative selection process, provide an update on the construction progress and discuss the next steps in the project.

 

Professional Ethics for Engineers

Time: 4 p.m. to 5 p.m. (Track H)

Presenters: Regina Smtih, SPHR, SPHR-SCP, CPM (FNI); Kelly Dillard, P.E., CFM (FNI)

Topic: During this interactive session, participants will discuss the definition of ethics and explore the National Society of Professional Engineers (NSPE) Professional Code of Ethics for Engineers. Participants will apply the NSPE Code of Ethics to case studies published by the Board of Ethical Review (BER). This class will equip participants to be confident in handling ethical situations that may arise. The NSPE Code of Ethics will be introduced and its six fundamental cannons reviewed.

 

Sept. 1

Stormwater CIP Prioritization

Time: 10:30 a.m. to 11 a.m.

Presenters: Scott Hubley, P.E., CFM (FNI); Mark Pauls, E.I.T., CFM (FNI); Chris Johnson, P.E., CFM (City of Fort Worth); Kiran Konduru, P.E., CFM (City of Fort Worth)

Topic: When Fort Worth’s Stormwater Management Program was launched in 2006, the top priority for the program was to develop key system data needed to progressively facilitate more strategic program execution. To this end, the City completed numerous open channel, watershed and neighborhood drainage planning efforts over the subsequent 10 years from 2006 to 2016. Now, as the City of Fort Worth is experiencing a change to its funding structure, there is a significant need to use the information collected in these studies to consistently compare and prioritize the potential capital projects so that funds can be optimized to protect people and property from flooding. This presentation will showcase a prioritization system and database that were developed to support decision-making for CIP programming as well as tracking of project information through the life-cycle.

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