Total cost to build plant was $1,300,000,000 and involved more than 8,100 companies of which 5,745 were small firms. More than 138,000 purchase orders costing more $500,000,000 were placed. More than 87,000 orders totaling about $245,000,000 went to small firms. There were 38,500 people employed at the construction peak, 5,000 of them technically trained. The size of the site is 200,000 acres, four times the size of the District of Columbia. Two world safety records for construction were set and 6,000,000 man hours were worked without lost time injury. 75,000,000 vehicles miles were logged per year on the project, 8,500 vehicles per day. National average traffic death rate seven 100,000,000 vehicle miles on the project, 2.7.