While work progressed at the Lower Mexican Heading (LMH) to dam the heading and prevent the water from the Colorado River from flooding the Imperial Valley, 4 miles to the north in California, USA efforts to build a new heading and headgate proceeded.
The purpose of the new Hanlon Heading was to make it possible to continue delivering water to the thirsty crops in the valley after the LMH was closed.
The delayed start for the Rockwood Headgate combined with the Hanlon Heading construction being behind schedule meant that efforts to close the LMH could not continue until after the spring and summer floods had passed. Meanwhile the Salton Sea continued to grow in size as the entire Colorado River continued to pour through the valley and into the sea.
Panoramic View of Construction at Hanlon Heading
Note; This panoramic image was constructed from three different pictures taken from the top of Pilot knob looking southwest at the Colorado River. It includes almost all of the infrastructure at Hanlon Heading built until this point. Please use the interactive map to see all of the different components of this panorama.
High Resolution Image
Super High Resolution Image
Super High Resolution Image with Super Zoom
Interactive Image
