Page 5a: Three Color Photos [11/14/74] Rock face upstream side key trench showing station 14+30 to station 14+70 at elevation 5138+. [11/14/74] Grout hole at station 14+65 92’ upstream at elevation 5143.0. This is typical of the voids found in both abutments of the zone one area of the dam. [11/14/74] Grout cap in the right abutment key trench. Page 5b: Three Color Photos [11/14/74] Downstream side of the right abutment key trench zone 1 embankment is at elevation 5138, Station 14+45 to Station 14+65, right to left. [10/16/74] View of right abutment key trench upstream rock face showing rock between station 13+00 and station 13+50. [2/14/75] Excavated grout cap trench in the right abutment key trench station 9+25 to 9+90 showing jointing and flow planes which cause the blocky excavation.