Underground Construction - July 2022 - 34

Convention Review: CIGMAT 2022
Flooding & Construction
Moderated by Rafael Ortega from Aurora Technical Services,
Houston, the first panel discussion addressed " Flooding and
Construction Issues, "
Atul Hannan, Director of Planning, Harris County flood
Control, discussed the use of advanced technology for better
modeling and risk mapping in Harris County.
The Houston metroplex remains one of the most volatile
mapping areas within the country, due to little topographic
relief, poor draining soils, and high watertables that are exacerbated
by intense and extended rainfall events.
In summer 2018, the city of Houston and Harris County
passed the most restrictive floodplain management standards,
requiring 2 feet of freeboard above the 0.2-percent annual
chance event.
One year after the Aug. 25, 2018, anniversary of Hurricane
Harvey's landfall, voters approved $2.5 billion in bonds to finance
additional flood damage reduction projects throughout
Harris County.
Building on the response of communities and residents
in 2018, the integrated project team, comprising the Harris
County Flood Control District, FEMA, and a cast of non-traditional
partners, is working closely to evolve risk awareness
communications and data delivery throughout the 22-watershed
project area.
Jun Chang, general manager for the North Harris County
Regional Water Authority (NHCRWA) discussed projects
and plans related to the rapidly increasing demand for water
supply in the region. Also, there are many challenges related to
surface water treatment and distribution using large-diameter
pipelines. NHCRWA is working closely with the Houston on
some of the major projects.
David Miller, major project manager for the Coastal Water
Authority (CWA) discussed the $381-million Luce Bayou
Interbasin Transfer Project (LBITP) - the largest water supply
project built for the Houston Region in the last 50 years.
Completed in 2021, LBITP is transferring up to 500 million
gallons of water per day from the Trinity River to Lake
Houston. Water is pumped through two 96-inch diameter
pipelines (3 miles) over Capers Ridge to a point where water
can flow via gravity in a canal system. The water is needed at
Lake Houston in support of the $1.7-billion expansion of the
City's Northeast Water Purification Plant.
Across the Houston region two issues are driving the need
for surface water supplies - subsidence caused by groundwater
use and population growth.
Transportation, power
The second technical on " Transportation Projects and Power
Issues, " was moderated by Daniel Wong from Tolunay-Wong
Engineers, Houston.
Brian Raine, principal at ARUP and leader in utility-scale
renewable energy work, discussed the 2021 Winter Storm Uri
and highlighted the need for resilience in the Texas power
grid. More broadly, increases in power generation from renewable
energy sources, such as wind and solar energy, have
increased the need for power storage solutions.
This allows peaks in power generation to be shifted from
times of abundance to times of high demand, with increased
revenue for the generator. Power storage at selected locations
on the grid reduces transmission congestion by averaging the
flow and storage at the point of consumption.
This allows consumers to either store and later consume
their own excess power generation or moderate their power
demand during high rate times, or simply add resilience to
their operations.
Energy storage can be achieved by multiple means. The
C. Vipulanandan (third from left) with graduate students.
34 JULY 2022 | UCONonline.com
http://www.UCONonline.com

Underground Construction - July 2022

Table of Contents for the Digital Edition of Underground Construction - July 2022

Contents
Underground Construction - July 2022 - Cover1
Underground Construction - July 2022 - Cover2
Underground Construction - July 2022 - Contents
Underground Construction - July 2022 - 4
Underground Construction - July 2022 - 5
Underground Construction - July 2022 - 6
Underground Construction - July 2022 - 7
Underground Construction - July 2022 - 8
Underground Construction - July 2022 - 9
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Underground Construction - July 2022 - 42
Underground Construction - July 2022 - Cover3
Underground Construction - July 2022 - Cover4
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