If we had a system to reclaim the energy as it flowed down the other side - like hydroelectric generator to power an electric water pump - it might not be too e

If we had a system to reclaim the energy as it flowed down the other side - like hydroelectric generator to power an electric water pump - it might not be too expensive. I suppose an alternative - getting a modestly-sized (6 foot diameter?) drill and drilling from mid-Oklahoma to Eastern-Arizona - wouldn't be a lot cheaper. The tunnel would only have to be approximately 1000 miles long.