Conversation so far:
how much does the new tappan zee bridge cost
The Tappan Zee Bridge project was expected to be completed by June 15, 2018, at a cost of $3.98 billion.
when did the new tappan zee bridge open
The New Tappan Zee bridge opened August 26, 2017 and September 11, 2018.

Question: what is the point of the bridge
Self-contained rewrite: what is the point of the new tappan zee bridge