Meeting/Event Information

EWRI HCFCD Tunneling Presentation: Digging Deep for Flood Relief in Harris County - CANCELLED

March 31, 2020
11:30 AM to 1:30 PM
 Add to Calendar

Jacobs Engineering (Tower 2)
5985 Rogerdale Rd
Houston, TX 77072

This event has been cancelled.  We are looking to reschedule the event so stay tuned for updates!

This presentation will discuss ongoing efforts of the Harris County Flood Control District to determine the feasibility and effectiveness of large diameter inverted siphon stormwater tunnels for flood mitigation in Harris County. Prior to Hurricane Harvey tunnels were not considered a feasible alternative for flood mitigation, but HCFCD completed a study in 2019 that determined large diameter tunnels could be built with current construction methods based on the soil and groundwater conditions in Harris County and these tunnel could convey a significant flow rate entirely by gravity.

This presentation will review the results of the Phase 1 study with particular focus on project hydraulics including hydraulic conveyance capacity. Conceptual thoughts on system operation, inlet and outlet structures, sedimentation and operation and maintenance will be reviewed. Similar inverted siphon stormwater tunnels built elsewhere in Texas will be reviewed for lessons learned that can be applied to the Harris County concept.  Current project status and future plans will also be discussed.

Please see below for speaker details.


11:30am          Registration, Networking, and Lunch

12:00pm          Introductory Remarks and Presentation

1:00pm            Q&A and Closing Remarks

1:30pm            Meeting Adjourns

Professional Development Hours: One PDH will be offered for this event.

ASCE Members:         $30
Non-Members:           $50
Registration includes boxed lunch.  Lunch is guaranteed if registration is recieved before noon on 3/30/20.

Payment: Please pay by credit card online after clicking the "Register Now" button or bring a check (payable to "ASCE Houston Branch") to the event.  No cash will be accepted.

Sponsors: Sponsorships are available for $250 each. Sponors will receive:

  • One complementary lunch
  • Recognition on event posters, welcome screens, and verbally during the event

Please email your high resolution logo to [email protected] after you purchase your sponsorship.  You may purchase your sponsorship online by clicking on the "Register Now" button, or click here to complete a paper form and mail a check.

Parking:The event will take place in Tower 2 (the northern building).  Parking is avaiable in the adjoining garage. Please make your way to the lobby of Tower 2 for the registration table and signs to the event location.

Scott Elmer, P.E.
Assistant Director of Operations, Engineering Division
Harris County Flood Control District

Mr. Elmer joined Harris County Flood Control District in 2018 as Engineering Division Manager and was promoted to Assistant Director of Operations in 2019. As Assistant Director of Operations, Mr. Elmer helps to guide the activities of the Engineering, Construction, Planning and Infrastructure divisions of the Flood Control District. Mr. Elmer also serves as the Flood Control District lead for alternative project delivery and improvements to operational processes. Before joining the Flood Control District, Mr. Elmer served as the Assistant City Manager for the City of Missouri City from 2011-2018 where he oversaw public and private infrastructure, land development, utility operations and Parks and Recreation.

Brian Gettinger, P.E.
Tunneling Services Leader
Freese and Nichols, Inc.

Mr. Gettinger is the Tunneling Services Leader for Freese and Nichols, Inc. He has a wide variety of experience in design, cost estimating, inspection and construction management of tunnels and grouting of shafts and reservoirs for water and wastewater projects. His tunneling experience includes hard and soft rock tunnels excavated by conventional TBM, EPBM and drill and blast methods with tunnel liners, including cast-in-place concrete, precast gasketed concrete segments and fiberglass pressure pipe. Brian has been a strong advocate for utilizing large diameter inverted siphon tunnels for flood mitigation in Houston following Hurricane Harvey.

Hector Olmos, P.E., CFM
Vice President/Principal
Freese and Nichols, Inc.


Mr. Olmos is a Vice President/Principal at Freese and Nichols, Inc., and the firm’s Southeast Division Stormwater Management Group Manager. His expertise covers advanced hydraulic modeling, hydrologic and hydraulic model calibration, and forensic analysis after major storms, including extensive involvement following Hurricane Harvey. His experience includes sizing and evaluating drainage infrastructure for levees, dams, tunnels, pump stations, channels; evaluating regional solutions for flood control/mitigation; floodplain mapping studies; preparing drainage master plans; and conducting dam/levee breach analyses.


$30.00 Member

$50.00 Guest

$250.00 Sponsor


Become a Sponsor Learn More