Solid & Resilient Wheels | Gear Boxes | Axles | Gear Box & Wheel Set Repair
Solid & Resilient Wheels
That Outperform the Others
Penn Machine Solid & Resilient Wheels set
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What’s more, our 300,000+ Resilient Wheels
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> Rubber or Ring Elements with Precisely
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By using ultrasonic and Magnaflux® testing,
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To find out how we can help,
call 724.459.0302 or
visit www.pennmach.com
310 Innovation Drive
Blairsville, PA 15717
724.459.0302 Marmon Holdings
www.pennmach.com
22 | Mass Transit | MassTransitmag.com | JUNE 2017
A Berkshire Hathaway Company
See us at booth #109
For more information, visit www.MassTransitmag.com/10065912
the public we maintained an active
community relations team,” said
Medved. “We benefi ted from really
a tremendous amount of support
from the city of Fremont and the
residents of Fremont. You can
hardly imagine a more supportive
group for a project such as this.”
“Th ere were some issues in the
tunnel. We built a bridge over the
Hayward Fault, which was structural,”
said Murphy. “Th ere were
issues like that, that were more really
innovative for the alignment
compared to other alignments.”
Th e Hayward Fault is around
74 miles long and the rail line
happens to cross the fault in two
diff erent locations.
“Th e original forefathers, and
probably some foremothers of the
BART system, were really smart
people, but unfortunately aimed
the line that runs down from Oakland
to Fremont essentially right
at the Hayward Fault and stopped
right in front of it. Our fi rst task, at
least geographically, immediately
south of the 45-year-old Fremont
Station, was to cross the Hayward
Fault on a structure. It’s a challenging
confi guration. We devoted
a lot of time to making sure that
that structure would be robust
enough to deal with the constant
creep that happens, as well as an
anticipated rupture that is probably
due,” said Medved.
Medved explained that they
looked at the possibility of an
earthquake as “not a question of
if, but when.” Th ere needed to be
a great deal of attention that went
into the structural development in
the crossing of those two locations.
Focusing on the fault crossings
was a highly important factor.
THE STATION is the
first step in BART
extending its
line down to the
San Jose area.
The area around
is also booming
in infrastructure
development.
HNTB
PROJECT UPDATE: BART WSX