C.W. Hancock, Cass County. Views show centerline of pipe spillway before and during construction. About 8 feet of excavation was necessary at the upper end by the riser.
C.W. Hancock, Cass County. Views of the gully before and during construction. The excavation is for the pipe spillway, which had a total fall in it of 9 feet.
Lee Johnson's farm, Cass County. This set of pictures show various stages of a gully control structure on the East property line of the Lee Johnson farm 1 1/2 miles south of the town of Lewis, Iowa.
Looking South-southwest. Observer is facing upstream. North-south property line fence is visible on hill to left. The trees in foreground are growing down in the lateral. This lateral enters from the right.…
Bulldozer bringing in earth from left downstream bank. Top of riser forms are seen in left center. View taken from approximately same spot as picture No. 1.
Another view showing lateral to North-west. Note how building of riser delayed earth fill, and prevented placing the earth in level layers over the entire fill.
