It was mostly built in the right-of-way of existing roads, so it's probably not comparable to projects that involved a lot of land acquisition.

That’s not true. The majority of the costs in the light rail project discussed (ST3) involves ROW acquisition, for above grade or underground rights of way.

You may be thinking of the original light rail or Sound Transit 2.

The original light rail was kind of a disaster but since then the management has changed; we will see how ST2, currently in construction, plays out.

I was referring to the Silver Line addition to DC's metro system. It mostly runs in the median of 267.