Incredible story weaving engineering feats, machine politics, and personal tragedy. I keep thinking about the genius and precision it took to sink the caissons into the riverbed an inch at a time. My only gripe is that Emily's story isn't really told until late in the book when it's acknowledged early that she was a key player.
The agriculture practices get all of the attention, but the worst aspects to me were the rampant scams targeting the poor and immigrant communities (maybe because I recognize the same scams still being run). Didn't love the writing style and the characters were hollow, so it wasn't a great read, but obviously this isn't intended to be a character-driven story.
The premise is covered pretty well in the first third (on the movement for same-sex marriage) and the rest can be safely skimmed or skipped. The idea that citizen activists and groups lay the groundwork for SCOTUS decisions through local, state, and federal activism is intriguing and worth remembering, but ultimately this would have worked better if it were about half as long.