Construction Equipment Guide
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Wed September 18, 2024 - West Edition #19
A piece of Las Vegas history is disappearing from the city's "Just Off the Strip" landscape. The Tropicana Hotel complex, once a hub of Las Vegas betting and nightlife, is being systematically demolished to make way for a stadium that will house the city's newest professional sports franchise.
Heading the effort to level nine structures — including a pair of 22-story towers — on the 34-acre site, Miller Environmental Inc. (MEI, Orange, Calif.) has assembled an armada of equipment, including no fewer than 10 Link-Belt excavators, a host of attachments, support equipment and a crew of more than 100 skilled personnel.
As the phrase "Drop the Trop" enters the vernacular, Miller is helping usher in a new era for Las Vegas.
By Las Vegas standards, the Tropicana Hotel is ancient. First opened in 1957, it was, at the time, the most expensive Las Vegas resort ever developed, with a price tag of $15 million. Over more than six decades, despite expansions, multiple owners and several rebrandings, the Tropicana failed to keep up with the more popular and elaborate offerings on The Strip.
This year, Bally's, the Tropicana's owner, agreed with the Oakland A's baseball club ownership group to make available a huge portion of the site for construction of a new Las Vegas A's stadium — setting the stage for the Trop's planned demolition.
"When we first got on site in March, we dealt with some minor asbestos abatement," said Gregg Miller, MEI's president and owner. "Despite the Trop's age, there had been so many additions and renovations over the years that the bulk of the asbestos had already been removed. We quickly moved to demoing 100,000 sq. ft. of smaller three- and four-story structures that were part of the original Trop layout."
Though dwarfed by most of the newer mega properties on The Strip, the Trop complex contains more than 1.7 million sq. ft. of structures, including the pair of towers (725,000 sq. ft., a pair of parking garages (one above ground, one below), a pool/spa area, a theater, the casino gaming area and 184,000 sq. ft. of support facilities.
Both in size and stature, there's little denying that the pair of guest room towers are the center of The Trop's profile. Though they will ultimately be imploded by Controlled Demolition Inc. (Phoenix, Md.), Miller has taken a different upfront approach to that facet of the project.
"Because we plan to recycle the concrete and steel from each structure, we are choosing to gut each structure before implosion," he said. "If we were to simply drop the structures as they are, we would contaminate that valuable debris with all the building components: the walls, the ceilings, the carpet, furniture and so on. So, working from the ground up, we are tackling an interior demolition effort, three floors at a time. We have a dozen Bobcat loaders — two on each floor of each tower — gutting the rooms, punching a hole in the exterior wall, and pushing the debris to a pile below. There, we have a Link-Belt 350 X4 equipped with a grapple/thumb loading out debris to end-dump trailers."
On each tower, MEI is averaging six floors per week, after which each skid-steer is set onto a platform and lifted by crane to the next target level to repeat the process.
"This will allow us to have a relatively clean pile of steel and concrete after the implosions," said Dave Anderson, MEI's general superintendent for the project. "The concrete is being crushed on-site and will be repurposed, both as backfill and sold off for Class 2 base. The steel, on the other hand, is being taken to one of SA Recycling's Vegas yards, less than five miles from the site. It's really been an efficient operation right from the start."
Different structures demand different demo techniques; The Trop's mostly steel-constructed pool/spa area is a case in point. For it, MEI used another Link-Belt 350 X4, this one equipped with a Genesis GXT 335R mobile shear.
"The resort is a fairly large area, about 110,000 square feet in size," Anderson said. "The shear is pulling double duty there — pulling the structure apart and then, when beams are freed up, downsizing them for transport. Another 350 X4 with a grapple/thumb is working alongside him and handling the loadout of that material."
Despite the large acreage of the complex, Miller's team's focus is always on maintaining an orderly job site — hence the push to move material offsite as quickly as possible.
"Really, the only piles you will find out here for any length of time are concrete that is being hammered and pulverized (using a 490 X4 and 250 X4, respectively) for crushing and reuse," Anderson said. "Everything else is hauled off fast."
Miller prefers Link-Belt excavators. The company owns 33 of the red machines, many of which are at the Tropicana site.
"Because of the size of the job and the varied nature of all the work, we have 10 Link-Belt units at The Trop site," Miller said. "Those include a pair of 750 X4s: three 490 X4s; three 350 X4s; one 250 X4 and one 145 X3. I've been a Link-Belt user since 2006 after I saw one of the larger demo firms in our area in California using it. I decided to follow their lead and it was a good move on our part. The equipment is extremely reliable, it performs well, our guys love it and I get the best level of support possible from both Link-Belt and our dealer, Bejac Corp."
A feature Miller and Anderson cite is the X4 Series' use of Isuzu engines. Because they do not use a diesel particulate filter — one of the biggest causes of machine failure — the company experiences fewer engine-related service problems. By instead using an exhaust gas recirculation (EGR) system, nitrogen oxide pollutants (NOx) are reduced without sacrificing fuel efficiency or engine horsepower. Harmful emissions are lowered even further by an SCR (selective catalytic reduction) system which removes pollutants to near-zero levels.
"Link-Belt excavators are also equipped with a proprietary control valve," Anderson said. "That feature allows a particular machine to truly multitask — track, have bucket movement and swing — all without one action impacting the other. With project schedules getting tighter all the time, that really helps keep productivity up. And Bejac, which now also has a Las Vegas location, is excellent in seeing to our needs and minimizing the risk of any downtime."
Other areas of the site MEI is tackling include 38,000 sq. ft. of the casino/gaming area and a broad expanse of concrete that served as an apron and parking areas for the various buildings. For the concrete removal, MEI called upon a Link-Belt 750 X4. The machine's i breakout force coupled with an 84-inch bucket is making short order of both the removal and loadout. As the project progresses, Anderson foresees both 750s playing key roles.
"The underground and foundation facet of this job will probably be the most challenging," he said. "The footers for the Club Tower are built on caissons that are 19 feet deep and sitting on caliche rock. There are also three tunnels that connect some of the buildings — ranging in dimension from utility-sized to pedestrian — as well as additional underground infrastructure. For all that work, we will equip the 750s with Epiroc HB 7000 hammers; they'll have no problem with any of it at all."
The implosion of the towers is set for October, with a project wrap-up slated for April 2025. By project's end, Miller estimates they will recover about 180,000 tons of concrete and asphalt and 9,000 tons of ferrous/nonferrous metals.
"We are pleased with how well the Tropicana project is proceeding and are already getting set to begin work at the Mirage Hotel on the other end of the strip," he said. "These are exciting times for both Las Vegas and Miller Environmental."