Photograph of a view of an arch spanning the Los Angeles aqueduct, [s.d.]. A concrete arch can be seen in a hillside at center, and the aqueduct passes through the archway. A small amount of water can be seen in the channel. At right, a large metal pipe is visible. Utility poles can be seen in the background at right, while a tree is visible in the foreground at left. Photoprint reads: "Department of Public Works 180-inch multi-plate arch spanning Los Angeles Aqueduct Canal and 150-inch multi-plate arch spanning 96-inch Los Angeles Aqueduct Penstock".