Six Companies, Inc.
On January 10, 1931, the Bureau of Reclamation made the bid documents available to interested parties, at $5 a copy (equivalent to $79.00 in 2016). The government would provide the materials, and the contractor was to prepare the site and build the dam. The dam was described in minute detail, covering 100 pages of text and 76 drawings. A $2 million (equivalent to $26.1 million in 2016) bid bond was to accompany each bid. The winner would have to post a $5 million (equivalent to $65.2 million in 2016) performance bond. The contractor would have seven years to build the dam, or penalties would ensue.
A consortium was formed by eight smaller general contractors in order to submit a bid for the Hoover Dam construction contract. (They chose to call themselves Six Companies, Inc. as an allusion to Chinese Six Companies, where Chinese tongs in California took their grievances.) Because of the immense size of the first dam on the Colorado River, no single contractor had the resources to make a qualified bid alone. Harry W. Morrison of Morrison-Knudsen (Washington Group International, a division of URS Corporation) formed the joint venture and was elected president of it. He selected Frank Crowe, an employee of Morrison-Knudsen as the General Superintendent. Crowe was the true project manager of the undertaking. He drafted the bid, costed the project, won the project selection process, and hired each of the men who were employed during the course of the project. The Six Companies started working in about June 1931.
Six Companies Inc. was composed of:
- Henry J. Kaiser Co. of Oakland, California and Bechtel Corporation of San Francisco (Bechtel-Kaiser): 30%
- MacDonald and Kahn of Los Angeles, California: 20%
- Utah Construction Company of Ogden, Utah: 20%
- Morrison-Knudsen of Boise, Idaho: 10%,
- Pacific Bridge Company of Portland, Oregon: 10%
- J.F. Shea Co of Portland, Oregon: 10%
The Six Companies Inc. won the contract in 1931, after a bid of US$48,890,955 (equivalent to $637 million in 2016). The project was so complex and large that only three bids were received. The Six Companies Inc. bid was $5,000,000 lower than the next bidder, meaning a bid-spread of almost 10%. The Six Companies completed construction of "Boulder Dam—Hoover Dam" two years ahead of schedule in 1935, although it took nine years (1938–47) under relative secrecy, to fix serious leaks with a supplemental grout curtain.
Six Companies Railroad
The Six Companies also built the 19.1-mile (30.7 km) Six Companies Railroad. It connected along the Hemenway Wash, present day Las Vegas Bay, to the US Government Hoover Dam Railroad at Lawler, Nevada, a location also known as "US Government Junction". From Lawler the railroad went north for seven miles (11 km) to Saddle Island and then east to the Three-Way Junction gravel plant, now submerged under Lake Mead. From the gravel plant the line split into two branches. One branch ran south for 4.8 miles (7.7 km) to Hoover Dam via Cape Horn, Lomix (the Low Level Concrete Mixing Plant) and Himix (the High Level Concrete Mixing Plant) and the dam face. The other branch is now also submerged under Lake Mead and ran north for 7.3 miles (11.7 km) across the Las Vegas Wash, crossed the Colorado River on a bridge into Arizona and the Arizona gravel pit (Arizona Gravel Deposits) at a location two miles (3.2 km) from Callville.
The line was constructed by railroad contractor John Phillips of San Francisco, California. The dam was dedicated in September 1935 and the Six Companies, Inc. railroad line is now submerged.
The Western Pacific Railroad purchased several of the Six Companies dump cars for company service after the dam was completed and the equipment declared surplus. One of these cars is now preserved at the Western Pacific Railroad Museum at Portola, California.
During World War II, the Six Companies built airstrips and related facilities on Pacific islands. Also, the Six Companies held a majority ownership interest in Joshua Hendy Iron Works in Sunnyvale, California. Hendy was most known for its record-breaking assembly line production of 754 Liberty Ship EC-2 Reciprocating Steam Engines, producing one engine every 40.8 hours. They were used at the Richmond Shipyards, building the Liberty Ships.
- Herman, Arthur (2012). Freedom's Forge: How American Business Produced Victory in World War II. New York: Random House. pp. 37, 52–5, 210, . ISBN 978-1-4000-6964-4.
- Federal Reserve Bank of Minneapolis Community Development Project. "Consumer Price Index (estimate) 1800–". Federal Reserve Bank of Minneapolis. Retrieved January 2, 2019.
- Thomas, Ryland; Williamson, Samuel H. (2018). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved January 5, 2018. United States Gross Domestic Product deflator figures follow the Measuring Worth series.
- Stevens, Joseph (1988). Hoover Dam: An American Adventure. New York: Free Press. p. 34. ISBN 0-8061-2283-8.
- Herman (2012), pp. 37, 52-3.
- Reisner, Marc (1993). Cadillac Desert: The American West and Its Disappearing Water. Penguin Books. p. 610. ISBN 0140178244.
- Stevens (1988), pp. 35–42.
- Stevens (1988), pp. 45–46.
- Rogers, J. David (September 22, 2005). "Hoover Dam: Grout Curtain Failure and Lessons Learned in Site Characterization" (PDF). Dams Symposium. Las Vegas: Association of Engineering Geologists. Retrieved June 14, 2010.
- "Engine #754 at Joshua Hendy Iron Works". Sunnyvale History. Sunnyvale Collection. Sunnyvale, CA: Sunnyvale Public Library. Retrieved August 19, 2017.
- "Corporations: Machine Maker for the West". Time. March 25, 1946. (Subscription required (help)).
- Herman (2012), pp. 169-74, 176-91.
- Six Companies, Now Single Unit, Ready to Sign Contract for Hoover Dam; newspaper article; unknown date.