SOLUTION: $746$M$,$ & $1,616$M In example Problem $6\mathrm{.}9,$ water depths were required at critical diversion points located at distances of $188,423,748,$ and $1,675$ m upstream of the dam. The standard step method solution $($Problem $6\mathrm{.}8\mathrm{.}7)$ yielded depths of $1\mathrm{.}91,1\mathrm{.}82,1\mathrm{.}74,$ and $1\mathrm{.}66$ m$,$ respectively, at these locations. Use the direct step method and a spreadsheet program to solve for upstream distances using these depths. How closely do these distances compare with the standard step method distances prescribed in the original example problem?