Waste Management, Inc.
In 2001, the original permitted site life of the
Atascocita landfill in Houston, Texas, was down to
eight years. An expansion plan was already
underway, but had many obstacles in its path. A
new expansion design was created that would
give back 30 acres of land to the community.
The challenge was to relay to the public the visual impact of the vertical height increase of the
landfill above the existing permitted final grades.
Waste Management addressed the questions and
concerns of its neighbors using photo renderings
and site maps as visual aids.
The permit was granted in early 2005, allowing
the firm to obtain its goal of approximately 28 mil-
lion tons of additional refuse airspace, which
equates to approximately $500 million in future
revenue and almost 20 years of additional site
life. Getting the landfill expansion permitted in
two years allowed Waste Man-
agement to save several million
dollars in cell construction costs.
Waste Management’s design
group used MicroStation and
InRoads to accurately develop
the airspace calculations, facility
expansions and permit support,
standard engineering detail,
landfill phasing plans, and photo
rendering. The CADD group developed a sequence plan for
landfill construction for the life of
the site. Bentley software is helping
schedule just-in-time liner construction and optimize the spending of capital. ;
Visualization of the Marselis Boulevard Tunnel Construction
Carl Bro as
One of the biggest challenges for the design team
was to visualize and understand all the engineering problems posed by the complex geometry.
Carl Bro decided to use MicroStation to create a
3D model and, thus, reduce risk and uncertainty.
The town of Aarhus, Denmark, launched an envi-
ronmental impact assessment and initiative to im-
prove the road connection to the Aarhus Harbor
area. A traffic analysis showed that if the harbor
area is fully developed, the daily traffic to and
from the area will increase by some 25 percent in
a couple of years. In response, a new road tunnel
will be constructed as a cut-and-cover tunnel
placed under Marselis Boulevard, one of the
busiest and oldest roads in Aarhus.
The designers used InRoads to do model
surfaces of the existing ground level and the proposed design, and to make a 3D model of the tunnel construction. MicroStation was then later used
to do all other 3D elements in the tunnel. The 3D
model of the tunnel project of approximately 2.5
kilometers was made by one CAD engineer in less
than a day. ;