The All-American Canal in southern California delivers approximately 3.1 million acre-feet (382,379 ha m) of the Colorado River to nine cities and 500,000 acres (202,343 ha) of agricultural land. The 82 mile (132 km) long canal was originally constructed in the 1930s and 1940s. It begins at the Imperial Dam on the Colorado River, about 20 miles (32 km) northeast of Yuma, Arizona, and extends south and west, following the Mexican/ American border.
The canal is currently unlined and substantial amounts of water are lost due to seepage, according to the Imperial Irrigation District, who operate and maintain the All-American Canal. They want to rebuild a section of the canal, with the new canal constructed parallel to the existing canal. The new concrete-lined canal will help minimize water lost because of seepage. Coffman Specialties, based out of San Diego, California, won the initial project bid to complete a portion of the new canal.