There’ll be no Rhythmic Bumps on New Bridge


Driving across the current bridge is sometimes an interactive experience.

Motorists see the construction progress — most noticeably, that self-climbing jump forms were removed from all eight main span towers, revealing their chamfered tops. They can also feel and hear their three-mile trip, thanks to nearly 200 expansion joints that absorb the bridge’s steel and concrete slight expansions and contractions.

No rhythmic bumps on the new bridge, which will have 12 such joints on the westbound span and 11 joints on the eastbound span.

About the overhead gantries:

Intelligent Transportation Systems (ITS) will monitor conditions on the new spans and automatically inform the Thruway Authority staff about disruptions. Connections with law enforcement, first responders and tow truck operators will help minimize impacts from lane closures and accidents. Connections with the Thruway’s larger traffic management network will help synchronize operations, maintenance and repairs.

* * * * *

More than 85 of the 192 stay cables, ranging from 190 to 623 feet long, that will support the main span roadways were anchored the towers and tensioned to outside sections of structural steel the crews. That’s more than 700 miles’ worth of steel reaching from Tarrytown to Cincinnati.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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