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Quantities and costs of Echo Dam—Continued
Installing and painting highpressure control piping and oil tanks for emergency gates.
Installing and painting 72inch outlet pipes (see also E. W. O. no. 12 at p. 136).
Installing and painting 60inch balanced needle valves and control mechanism (see also E. W. O. no. 19 at p. 136, and E. W. O. no. 27 at p. 137; also O. C. no. 5a at p. 139, and O. C. no. 14 at p. 140).
Installing and painting metal stairs and floor system in needle valve structure.
Installing and painting gantry crane and rail.
Installing and painting metalwork in trashrack structure (sec also E. W. O. no. 10 at p. 135).
Installing and painting spiral stairs (see also E. W. O. no. 16 at p. 136).
Installing and painting pipe handrailing.
Installing and painting metal lampposts.
Installing electrical conduits, fittings and boxes, sizes 1 inch and under.
Installing electrical conduits, fittings and boxes, sizes \%; \)z inches.
Installing electrical conductors, fittings, and apparatus, complete.
Erecting timber in walk along 72-inch outlet pipe, and stairway to emergency gate structure.
Constructing and painting wood guardrail.
Constructing and painting standard highway fence.
Subtotal, contract items
Extra work orders
Orders for changes
Echo Dam—An Earth and Rock Fill Dam on the Weber Design and Construction of Two New Reclamation Dams. River. Reclamation Era, September 1928. Engineering News-Record, June 18, 1931.
Echo Dam, Progress of Construction. Western Construe- Construction of the Echo Dam. Reclamation Era, tion News, Dec. 10, 1929. October 1931.