Thursday, December 8, 2016

Electric City Penstock Load

Courtesy the NPTellTale.

Penstocks were built at the fabrication plant in Electric City, being far too large to ship by rail. Here is one of the 18 foot sections getting ready to depart for the dam. Locomotive 830 was built new for Consolidated Builders, Inc., in February 1939. This view shows the north wall of the Grand Coulee in the background.

Tuesday, December 6, 2016

Penstock Load At Dam

Photograph by the Bureau of Reclamation

This 18 foot penstock section is being lowered downgrade to the dam from the fabrication plant at Electric City. Note this type of locomotive, a Shay, which featured reduction gearing, is particularly suited to steep grades, slow operations, and heavy loads. The round object on the top of the penstock segment is a manhole cover. These access points are still used inside the galleries of the dam. What will become the upriver side of the dam is seen in the background.

Sunday, December 4, 2016

US Construction Railroad Mule Power

Photograph by the Bureau of Reclamation

Part of the way to keep costs low when building the railroad grade to Grand Coulee Dam was the use of mules for heavy grade leveling. Understand that when the contractor, Ryan Construction Company submitted a bid, they had in mind to do the work to the minimum standard at the lowest cost with the most profit to the company. Mules would fit this profile just fine.