Submitted by Point Defiance Zoo & Aquarium.

TACOMA, Wash. It was a huge undertaking. A massive window. A precision placement. And it all went swimmingly.

A wave of excitement washed over Point Defiance Zoo & Aquarium on Wednesday as a 157-foot-tall construction crane carefully lowered a massive acrylic panel demi-tunnel into place inside the new Pacific Seas Aquarium.

The nearly 35-foot-long, curved sheet of crystal clear acrylic will provide a window into the world of hammerhead sharks, green sea turtles, spotted eagle rays and other tropical animals that will live in the Baja Bay exhibit of the 35,000-square-foot aquarium, which is due to open next summer at Point Defiance Zoo & Aquarium.

Its placement in an operation that featured huge machinery, precise measurements and a choreographed construction ballet marks a major milestone toward the completion of the new aquarium.

We broke ground on the Pacific Seas Aquarium just over a year ago, zoo Deputy Director John Houck said. We have eagerly watched as footings went in, walls were formed and concrete was poured. Weve noted progress with each passing day, but the installation of this piece was truly an occasion to stop, watch and celebrate. We cant wait until next summer when we begin expanding on the many conservation stories of our seas, from cold waters of Alaska down to the warm waters of the Baja Peninsula.

We remain grateful to the visionary voters of Tacoma, who approved a Metro Parks Tacoma bond issue three years ago to make this aquarium and dozens of other projects across the city a reality, Houck added.

The window installed on Wednesday weighs nearly 12 tons and will sit at the heart of the $51.6 million Pacific Seas Aquarium, a replacement for the now 54-year-old North Pacific Aquarium.

A crane hoists a 12-ton acrylic window up and over the rear wall of the new Pacific Seas Aquarium at Point Defiance Zoo & Aquarium on Wednesday morning. It will be the window into Baja Bay, a new home to hammerhead sharks, green sea turtles, spotted eagle rays and other sea animals.

With its demi-tunnel design that will allow visitors to look up and see fish swimming over their heads, this one water window is likely to capture the hearts of visitors, too.

The hammerhead sharks, green sea turtles and eagle rays all newcomers to Point Defiance Zoo & Aquarium will swim in Baja Bay, the 250,000-gallon centerpiece of the new building.

The window, manufactured by Reynolds Polymer Technology, Inc., Grand Junction, Colo., arrived by truck at the entrance to Point Defiance Park in the early morning hours. A crew of flaggers guided the truck on a slow-motion, hour-plus ride through the park until it arrived at its destination inside the construction zone.

Another painstaking process slowly unleashed the acrylic panel from its steel shipping crate, then hooked it to a crane so it could be carefully hoisted aloft some 70 feet, up and over the aquarium building under construction. All the while, work crews made incremental adjustments so that the window could be lowered, inch by inch, into its final position.

But even with all that precision, the final act of hoisting the panel, swinging it into place and lowering it into position took only about two minutes. Construction crews positioned inside the building, however, took much longer to ensure the 6-inch-thick window was correctly set into place, where it will form one of the watertight sides of that huge exhibit.

In addition to the inhabitants of Baja Bay, the new Pacific Seas Aquarium will include new homes for the species that now reside in the North Pacific Aquarium including a giant Pacific octopus and several kinds of jellyfish.

The existing South Pacific Aquarium, which is home to 16 large sharks of five different species, as well as smaller sharks, stingrays and other fish, will remain open. The popular Eye-to-Eye Shark Dive program will continue there.

An architects rendering shows visitors watching scalloped hammerhead sharks, green sea turtles and spotted eagle rays in the Baja Bay exhibit of the new Pacific Seas Aquarium at Point Defiance Zoo & Aquarium. It is slated to open in Summer 2018.

Visitors to the new aquarium will enter alongside an outdoor Tidal Surge exhibit, where moving waves will course through a habitat teeming with sea stars, anemones and urchins. Theyll stroll past schools of herring racing around a circular tank with a 4-foot tall, 7-foot wide viewing window. Theyll get a glimpse of the sea life that lurks beneath the ruins of Galloping Gertie, the first Tacoma Narrows Bridge, which twisted apart and collapsed into Puget Sound in 1940. Theyll see jellyfish, giant Japanese spider crabs and more as they continue their journey toward Baja Bay.

The new aquarium is being built on a spot between the zoos Wild Wonders Outdoor Theater and the Rocky Shores area, home to marine mammals like Pacific walruses, California sea lions, harbor seals and sea otters.

Its the largest capital project in the 112-year history of Metro Parks Tacoma. It is funded largely from the $198 million bond issue approved by voters in 2014.

Turner Construction is the general contractor and construction manager for the project.

An architects rendering shows visitors watching scalloped hammerhead sharks, green sea turtles, spotted eagle rays and other sea animals in the Baja Bay habitat of the Pacific Seas Aquarium, which is scheduled to open in the summer of 2018 at Point Defiance Zoo & Aquarium.

For more information, go to http://www.pdza.org/new-aquarium.

See the article here:
12-ton window placement marks major milestone in Pacific Seas Aquarium construction - The Suburban Times

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