This article is co-published with ProPublica , the Houston Chronicle and The Texas Tribune as part of an initiative to report on how power is wielded in Texas.

The devastating flooding in Houston caused by Hurricane Harvey in 2017 killed dozens of people, inundated hundreds of thousands of homes and left the community desperate for a solution.

Since then, local flood experts have extensively studied the possibility of a multibillion-dollar tunnel system across Harris County, where Houston is located. Studies have focused on the construction of pipelines, 30 to 40 feet in diameter, that could ferry massive amounts of water out to the Gulf in the event of a storm.

Now, after years of research and discussion, Elon Musk wants a piece of the project.

An investigation b

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