“I did work with the design-
At the time that project was being completed, DBE Elec-
ers in terms of feedback—what
works, choosing the supplier to build
the gantry, the signs,” Lerdahl said. “It was
collaborative in that way. When you work all that
out before you actually put plans together, you have
more success with the project.”
In late 2011, construction of the 77 concrete pontoons
began in Aberdeen and Tacoma, Wash. These hollow
structures provide the bridge with buoyancy. The pontoon-
building site required power to operate the cranes that
hoisted the massive concrete structures (some of which are
as long as football fields) and lighting for the work area. DBE
Electric provided that electrical service.
tric won the contract to provide electrical construction for
the bridge itself.
In 2012, construction began on the bridge’s anchor and the
actual floating bridge. Work began on the eastern approach
bridge deck. Once fully assembled, the pontoons were fastened to the bridge’s deck. The entire bridge construction
wrapped up in April 2016.
As the new bridge was being built, motorists were trav-
Amaya Electric also installed the medium-voltage sys-
elling the old bridge, and WSDOT required a temporary
tolling system there. DBE Electric provided that system, then
decommissioned it and transitioned it to the new bridge as
traffic shifted to the new structure. The company installed
two tolling gantries and signs for the temporary system
and two for the
KGM installed the
equipment that ran through
each pontoon, including all sensors,
wires and other electrical compo-
nents. Pontoon commissioning consists of
testing all electrical components and monitoring
systems once the system is fully installed.
DBE Electric installed the conduits that protect electrical
wires through those pontoons as well as under the roadway.
Electrical contractor Amaya Electric, Lakewood, Wash.,
ran power under the deck, with brackets and hardware that
support electrical conduits between the top of the pontoons
and below the roadway.
tem that carries electricity to the entire bridge, including
lighting, signaling and sensors.