Environmental reviews have been weaponized by opponents of anything to delay it. Another aspect is all the public review. Replacing the eastern span of the Bay Bridge took 24 years after the Lona Prieta earthquake in 1989 because people fought over the design, and whether or not there should be bike lanes, etc.
California High Speed Rail has been stalled by opponents, including dome rather apparent astro-turf opposition funded by those whose ox is getting gored – airlines and oil companies. Endless lawsuits and environmental reviews.
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