Archive for the ‘Philips Lighting’ Tag

Bridge Lights captured against Darkened Sky

Like candles glowing in the night, belying the freezing cold temperatures, the new bridge’s main span towers were alight in blue as its piers below supporting structural steel, road deck and traffic changed rhythmically from blue to red and back, seen in this video by Flying Films NY co-founder and pilot Vinny Garrison.

“I have been in business for four years, back when drones were only things that flew around and shot missiles at people,” Garrison said. “I have enjoyed filming the construction of the new bridge and deconstruction of the old bridge and look forward to having an all-inclusive video from start to finish.”

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Inside Story of how TZC built the new TZ Bridge

Four years after its first foundational steel piles were driven into the river bed, one span of the new Governor Mario M. Cuomo Bridge connecting Westchester and Rockland counties in New York State opened to westbound traffic this past August.

Following a ribbon-cutting ceremony for the twin span, cable-stayed bridge named after his father, Governor Andrew M. Cuomo drove eastbound across the new span with Sleepy Hollow resident and Bronze Star recipient Armando “Chick” Galella in a 1955 Corvette, the same model year Corvette Galella drove with Governor W. Averell Harriman as part of the Tappan Zee Bridge’s December 15, 1955, inaugural procession.

This remarkable transition reflects the tireless efforts of thousands of men and women from Tappan Zee Constructors (TZC), a consortium of some of the world’s best-known and most highly-regarded design, engineering and construction firms.

In October, and weeks ahead of schedule, the Tappan Zee Bridge was retired, and eastbound traffic moved from that bridge to the new span. This allowed the design-build team to begin dismantling the old structure — including the steel and concrete above River Road in Rockland County — and to continue work on the eastbound span, which will open in 2018.

TZC’s first task involved removing the old bridge’s landings, which occupy the same footprint as the second span’s connections to the New York State Thruway. This was accomplished by cutting and dividing sections of steel and concrete into manageable sections, then using barge-based cranes to transport the materials away from the project site.

Transportation barges will carry the materials to ancillary facilities including the Port of Coeymans in Albany County. Many concrete materials and steel trusses will be recycled. More than 130 deck panels units, each approximately 13 feet wide by 50 feet long, will also be given to nearly a dozen state and local municipalities to be repurposed for other bridges and roadways.

Upcoming key operations include lowering of the old bridge’s main span steel cage via hydraulic jacks, and the removal of piles, piers and caissons with foundational material being removed below the bottom of the river. TZC will continue to remove pieces of the old bridge throughout the year, starting from the Rockland and Westchester landings and working toward the middle of the Hudson River.

Work on the new bridge’s eastbound span will continue throughout 2017 and into 2018. Once it opens to traffic, crews will begin building the new bicycle and pedestrian path on the westbound span. Features include six overlooks (resting points), visitor parking and pavilions; and interpretive exhibits, art and signage.

The Governor Mario M. Cuomo Bridge features an aesthetic lighting system that accentuates the iconic features of the new bridge, specifically its 419-foot towers, stay cables and concrete piers. TZC conducted numerous lighting tests throughout the year to help confirm the aiming angles of each lighting fixture, which needed to precisely follow the rendering plan set forth by lighting designers.

The project’s Visual Quality Panel, made up of the local community and design professionals, helped TZC develop the lighting plan. TZC prepared for these systems well in advance, installing parts of the utility and systems infrastructure into the steel girder assemblies that were fabricated offsite, reducing the amount of work required over the Hudson River.

Once the steel was safely secured atop the bridge’s concrete piers, TZC electricians began splicing and extending material, tying the bridge utilities into the systems in Rockland and Westchester counties. Utility lines provide electricity for the roadway and aesthetic lighting systems, and will also power the bridge’s structural health monitors, security systems and Intelligent Transportation Systems.

Much like the bridge’s roadway lighting, the aesthetic lighting utilizes energy-efficient light emitting diodes, or LEDs. The project’s LEDs are designed with 100,000-hour lifespans, using an estimated 75 percent less energy compared to traditional lighting technology.

TZC is utilizing modular construction techniques to create large sections of the bridge’s foundations, roadway and superstructure on-land. This allows TZC to safely prepare massive segments of the bridge off-site ahead of time, with some steel sections measuring up to 410 feet in length. Its ability to install these bridge elements is aided by the I Lift NY, whose enormous 328-foot lift arm can lift up to 1,900 tons of material — the equivalent of 12 Statues of Liberty at once.

This extraordinary lifting power, which shortened construction time by months from original estimates and reduce project costs by millions of dollars, will also help dismantle the old Tappan Zee Bridge.

Other innovative equipment includes: TZC’s mobile concrete batch plants that supply the majority of the structure’s concrete directly on the river, self-climbing jump forms that rose along with construction efforts to create the iconic main span towers, protective bubble curtains used to absorb the energy produced during pile driving; and the synchronized jacks used to lower football-field-length foundations into the Hudson River.

TZC is also constructing two buildings in Tarrytown: the Thruway Authority’s new maintenance facility and a new State Police facility. The buildings will improve bridge access for State Police and Thruway personnel responsible for maintenance, operations and security and will also allow emergency crews to quickly respond to vehicle breakdowns on the new bridge.

Crews created a new maintenance dock parallel to the new bridge in South Nyack. The dock will assist the Thruway Authority and emergency vessels near the new bridge.

Intelligent Transportation Systems will improve safety and mobility on the crossing by monitoring roadway conditions and notifying Thruway Authority staff of any disruptions. Motorists will also be informed of accidents and closed lanes through overhead electronic signage, enhancements that have been shown to minimize delays, allowing the public to get the most out of its investment.

The stream of data from the bridge’s sensors will be tracked at the Thruway Authority’s command center through an advanced Structural Health Monitoring System that will measure the twin-span crossing’s structural behavior under traffic and weather conditions. Routine and preventive maintenance work will also be efficiently scheduled with this state-of-the-art system. This vital communication network will make the bridge one of the most technologically advanced crossings in the United States when it opens in 2018.

Submitted by Tappan Zee Constructors, LLC (TZC) for the December 2017 issue of Rivertown Magazine. Photos courtesy of the New York State Thruway Authority.

On Location with more than a Thousand Words

Looking good: the shared use path on the Westchester side gets new LED roadway lighting stanchions (columns) for safety and visibility. Path construction in South Nyack begins in 2018. Photos courtesy of the New York State Thruway Authority.

How they get there (Tappan Zee Bridge and under-construction eastbound span) from here (land): by boat as both are independent of land. Back to river travel.

Check out this view inside the cage of a 300-ton crane. Like the super crane did, this will place steel girders onto newly-minted piers near the Rockland landing.

Mighty big for pick-up sticks, right? Above, the rebar sections being cut will be or were installed within concrete. FYI, a tiny piece of rebar is heavier than it looks.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

You say One Month, & They say a Different One

Winding down to the finish line yet still behind schedule for the first span to open. Maybe no one really knows as there’s still much work to be done before rubber meets roadway on the new Governor Mario M. Cuomo Bridge.

Weather may be a factor in the delay; however, a nearly-six-month delay is a bit much. “If the Thruway Authority doesn’t have the keys to the new bridge by March or April of 2018, then the contractor will be charged $100,000 per day for each day beyond that,” one source said in 2014. That’s the 62-month mark.

With eight or nine months until next spring, it seems unlikely both spans will open by then. “The bridge will open sometime in 2018,” other reporters and I hear and continue writing. No one is sure when.

You may be able to see some of the new westbound span’s lighting fixtures; not so easy with the upper main span tower’s aesthetic lighting fixtures. Periodic testing is on the way.

There’s also progress at the new maintenance facility in Tarrytown this week and footing and retaining wall construction — that includes galvanized steel sheets — for the new police facility on the south side of the Thruway.

About three-quarters of the eastbound span’s 96 stay cables have been installed, and yes! the eastbound span now has one of its eventual eight overhead gantries.

Another reporter said, “The Tappan Zee Constructors, the group of contractors tasked with designing and building the bridge, also need to stripe the driving surface.”

The consortium is Tappan Zee Constructors not the Tappan Zee Constructors. Further, Tappan Zee Constructors needs not need to stripe the driving surface. No editing prior to publication?

First photo courtesy of New York State Thruway Authority.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Noise Barrier Installation Continues — & Lights

You know about the hour-long light show under the bridge last month, right?

Above photo of lights courtesy of New York State Thruway Authority.

TZC also connected the Westchester and Rockland approaches to the main span last month. Getting closer! I wonder where they’ll put this happy sign:

Crews continue installing concrete noise barriers chosen way back when along the southbound Thruway and the northbound side (next to the future shared use path) in South Nyack.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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