Somebody succeed to build bridge which reach other side of the sea ??!
Yes, you can drag the blueprint into the fogged map parts, the last part slopes into the unrevealed map and after building you can remove that sloped part and extend your way.
Thank
Here's a short video demonstrating it:
You may want to sing along "Bridge Over Uncharted Water" by "Erin and his Uncle" while watching the video.When you're weary, feeling small ... :-D