This document provides instructions for designing an earthen dam, including: 1) calculating the free board and dam height based on the water table and equations; 2) defining the top width and selecting dimensions for the core and transition or filter zones; 3) choosing upstream and downstream slopes based on recommendations; and 4) performing seepage and slope stability analyses using permeability coefficients and soil strength parameters from textbooks.

1. 2nd
Home work (Critical Thinking Problem)
HINT: You would be judged based on the values you select.
The given figure, in page 2, in just an illustration figure, you final dam
drawing, will vary, depending on the cross-section and properties you
select.
………………………………………………………………………
1-Assume Water Table
2-alculate Free Board (Based on Equation, this can be found in any
Dam-Engineering Text-book)
3-Based on 2, Calculate Dam height
4- Define Top Width
5- Select the core dimension
6- decide whether, transition zone is necessary, or should it be replaced
by a FILTER
7- Do you need a filter at Down-stream ?, is so, set a filter zone
8- decide to what depth. the dam-foundation should be considered in our
analysis.
9- Select upstream and downstream slope. From recommended slope
value provided by Terzaghi or any other authors.
Required:
Perform Seepage Analysis, for coffecient of permeability refere to any
geotechnical text-book
Perform Slope stability, use Unconfined compression test resluts
(cohesion, and angle of internal friction values).