<p>BEIJING, China (AP) -- China began filling the reservoir behind its gargantuan Three Gorges Dam on Sunday in a major step toward completion of the world's largest hydroelectric project.</p>
<p>The sluice gate of the dam began closing at midnight and by early morning live broadcasts on state television showed the water level had already reached 106 meters (350 feet). By June 15, the level is expected to reach 135 meters (446 feet).</p>