Engineering Inc - September/October 2017 - 26

PROJECT: LOVE FIELD
MODERNIZATION PROGRAM
DALLAS, TEXAS
FIRM: HUITT-ZOLLARS, INC.
DALLAS, TEXAS

E

mbarking upon its second century
of serving North Texas, Love Field
is in the final stages of a major modernization. The project team's use of
a flexible security perimeter has simplified
construction access throughout the project,
and new computer modeling capabilities
provided the insights needed to remedy
long-standing site drainage problems.
First opened as a flying field by the U.S.
Army in October 1917, Love Field converted to commercial service at the close of
World War II. For the next 30 years, it was
the only commercial airport in the Dallas
area. But when Dallas Fort Worth International Airport opened in 1974, Love Field
was relegated to a secondary role. From that
point, improvements were largely limited
to minor repairs to limit costs, as much of
the sprawling terminal stood vacant. Even
so, it remained the home of the late-1960s
startup of Southwest Airlines.
In 2009, Southwest and the city of Dallas launched the Love Field Modernization
Program to bring its aging infrastructure up
to the level required to support flights to

anywhere in the United States.
The partners set a $519 million budget
to construct a new 20-gate concourse,
new ticketing hall and new baggage hall;
remodel the main terminal; and construct
new taxiways, taxi lanes and an apron to
serve the 20 gates.
Anticipating the frequently changing
work area boundaries, apron designer
Huitt-Zollars developed a movable Airport
Operations Area (AOA) fence system built
on standard K-rail traffic barriers. The
portable fence enabled modification of the
AOA boundary as needed so construction
of the new concourse, apron and utilities
always occurred outside the AOA. This radically simplified access to the construction
site for workers and equipment, and minimized the mixing of construction traffic
and the airlines' ground service equipment.
"It really helped the project out in a big
way," says David Akers, vice president of
Huitt-Zollars. "The K-rail not only provides
a foundation for the fence, it also keeps
foreign object debris from blowing onto the
airfield."
The field's drainage problem turned out
to be worse than anticipated;
the system was basically
undersized. "The problem
with airports is that they're
large areas and fairly flat,
which makes it difficult to

drain," Akers says. In 2006, a large thunderstorm underscored this problem, dumping 5 inches of rain on Love Field in a short
period, causing flooding and extensive
damage.
The existing drainage system-a combination of open channels, horseshoe-shaped
pipes, box culverts and round pipes, with
many styles of inlets and trench drains-
had evolved over time.
"We developed a model of the existing
system using a new finite element modeling software that allows you to analyze the
pipe system plus the combination of the
3D surface terrain model on top," Akers
says. It also enabled the creation of videos
that helped other project leaders visualize
the problem. The undersized drainage system resulted in significant runoff moving
overland across the airfield. The software
generated flow arrows on the ground surface model during inundation of the design
storm. These graphic indicators helped
engineers develop a solution that included
a new pipe network, an underground storage chamber to hold the design flow near
the control tower and significant changes
to the apron grading.
The new concourse opened
in 2014. Improvement and
expansion of parking facilities
is expected to continue into
2018.

The AOA-compliant portable barrier system used to delineate the border of the Airport
Operations Area consists of a K-barrier foundation topped with a chain-link fence;
double outriggers atop the fence are strung with barbed wire.

Outfitting a
Historic 'Flying
Field' for a New,
Expanded Role

HUITT-ZOLLARS

David Akers



Table of Contents for the Digital Edition of Engineering Inc - September/October 2017

Engineering Inc - September/october 2017
Contents
From Acec to You
Market Watch
Legislative Action
Eye on The Storm
Boost Profits, Reduce Loss
Innovations in Airport Design
Future Looks Bright for Vr
The Legend of Gridlock Sam
Focus on Philanthropy
Guest Column
Mergers and Acquisitions
Members in the News
Business Insights
Engineering Inc - September/October 2017 - Intro
Engineering Inc - September/October 2017 - Engineering Inc - September/october 2017
Engineering Inc - September/October 2017 - Cover2
Engineering Inc - September/October 2017 - Contents
Engineering Inc - September/October 2017 - 2
Engineering Inc - September/October 2017 - 3
Engineering Inc - September/October 2017 - From Acec to You
Engineering Inc - September/October 2017 - 5
Engineering Inc - September/October 2017 - Market Watch
Engineering Inc - September/October 2017 - 7
Engineering Inc - September/October 2017 - Legislative Action
Engineering Inc - September/October 2017 - 9
Engineering Inc - September/October 2017 - Eye on The Storm
Engineering Inc - September/October 2017 - 11
Engineering Inc - September/October 2017 - 12
Engineering Inc - September/October 2017 - 13
Engineering Inc - September/October 2017 - 14
Engineering Inc - September/October 2017 - 15
Engineering Inc - September/October 2017 - 16
Engineering Inc - September/October 2017 - 17
Engineering Inc - September/October 2017 - Boost Profits, Reduce Loss
Engineering Inc - September/October 2017 - 19
Engineering Inc - September/October 2017 - 20
Engineering Inc - September/October 2017 - 21
Engineering Inc - September/October 2017 - 22
Engineering Inc - September/October 2017 - Innovations in Airport Design
Engineering Inc - September/October 2017 - 24
Engineering Inc - September/October 2017 - 25
Engineering Inc - September/October 2017 - 26
Engineering Inc - September/October 2017 - 27
Engineering Inc - September/October 2017 - 28
Engineering Inc - September/October 2017 - 29
Engineering Inc - September/October 2017 - Future Looks Bright for Vr
Engineering Inc - September/October 2017 - 31
Engineering Inc - September/October 2017 - 32
Engineering Inc - September/October 2017 - 33
Engineering Inc - September/October 2017 - 34
Engineering Inc - September/October 2017 - 35
Engineering Inc - September/October 2017 - 36
Engineering Inc - September/October 2017 - 37
Engineering Inc - September/October 2017 - The Legend of Gridlock Sam
Engineering Inc - September/October 2017 - 39
Engineering Inc - September/October 2017 - 40
Engineering Inc - September/October 2017 - 41
Engineering Inc - September/October 2017 - Focus on Philanthropy
Engineering Inc - September/October 2017 - 43
Engineering Inc - September/October 2017 - 44
Engineering Inc - September/October 2017 - 45
Engineering Inc - September/October 2017 - 46
Engineering Inc - September/October 2017 - 47
Engineering Inc - September/October 2017 - Guest Column
Engineering Inc - September/October 2017 - 49
Engineering Inc - September/October 2017 - Mergers and Acquisitions
Engineering Inc - September/October 2017 - 51
Engineering Inc - September/October 2017 - 52
Engineering Inc - September/October 2017 - Members in the News
Engineering Inc - September/October 2017 - 54
Engineering Inc - September/October 2017 - 55
Engineering Inc - September/October 2017 - Business Insights
Engineering Inc - September/October 2017 - Cover3
Engineering Inc - September/October 2017 - Cover4
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