Show i I In Mr Ir I. I s opinion the first tint criticism of Dr DI Pack is It tho the most se serious serious se- se rious from an engineering standpoint He Ho sa says s 's The rock in tho tile faulted belt or zone zono is more or less shattered and small quantities of water are not only found In this formation but Jut small streams rna may flow In the direction of the frac frac- ture If H it can bo bG shown upon further excavation watSon that water flows Clows within this belt of broken rock approximately approximate parallel to the grade of the river bed then the trench must be ha deepened until such flow Is Intercepted The fhe trench must likewise bo deepened over o this portion until safe and solid bedrock is reached regardless of the passage of water The necessity for Cor taking every precaution precaution precaution pre pre- caution to check all passage of water in the rock formation underneath tho dam and at tho the same time secure a solid foundation Is apparent when one considers the effect upon both of these conditions resulting from a a. full tull reservoir reservoir reservoir reser reser- voir head Before Defore the tho foundation can be pronounced absolutely safe a a. large amount of rock excavation will bo be necessary necessary essar essary and suitable equipment ought to be provided for 01 this work In order to protect the workmen from injury Injun f I and t to lessen lesson the cost |