When the Roanoke Valley needs more water, it won’t build a new reservoir. It will build pipelines.

Fourth in a four-part series on the Roanoke Valley’s water supply.

Part one: Carvins Cove is at one of its lowest levels in the past four decades. Here’s why this is different from previous droughts.

Part two: The Roanoke Valley was supposed to run out of water in 2060. Now that date has been pushed to about 2100. Here’s why it’s changed.…