This dam does not sleep. It is an automated god of a small watershed—forgiving when the rains come, merciless when the drought sets the allocation to zero. It is just a wall of compacted clay and a $200 wireless card. But it decides who drinks and who watches their fields turn to dust.
Built into the shoulder of the ravine is a small, reinforced concrete housing. Inside, bolted to the wall, is a —a Wireless Access Point. Its antenna, encased in a weatherproof shroud, points toward a relay tower on the ridgeline. This is the brain of the operation.
The command is simple: Release 2.5 cubic meters per second.