p.13 #1219 Interior of Diversion Tunnel No.3, near upper portal. Invert and side wall sections of three-feet thick concrete lining have been poured. Jun. 2, 1932 p.13 #1289 Interior of Diversion Tunnel No.3, showing method of pouring alternate slabs in side wall section of tunnel lining. Lining form is shown in background. Jun. 22, 1932. p.13 #1220 Interior of Diversion Tunnel No.2, near upper portal. Invert and side wall sections of lining have been completed. Two cubic yard buckets for pouring concrete are shown on truck. Jun. 2, 1932. p.13 #1273 Detail pic, showing method of construction and operation of side-wall jumbo for placing lining in diversion tunnels. Jun. 29, 1932.
p.17 #1142 Marion type of 125 electric dragline with 5 cu. yd. bucket loading into 30 cu. yd. side dump cars at gravel pit. Mikado type locomotives pull 10-car trains, 3 trains of this type in operation. May 3, 1932. p.17 #1198 As protection against high water, a "bridle" has been attached to upstream face of gravel pit bridge. A 3-in. cable is anchored to concrete dead-men and horizontal stays are attached to bents on bridge. May 15, 1932. p.17 #1144 Ten car train of gravel crossing 1100 ft. trestle bridge and bound for screening plant. Round trip take slightly over two hours. May 3, 1932 p.17 #1193 Locomotive equipment of Six Companies Inc. on yard at gravel plant. May 15, 1932.