Mezue ahịrịokwu na-esonụ: Bechtel sonyeere azụmahịa ezinụlọ na 1948. Ọ bụ ezie na ọ bu ụzọ chọọ ịbanye n'ụlọ ụlọ, nna ya kwenyesiri ike site n'igosi Bechtel Corporation ọrụ zuru ụwa ọnụ na njem izu atọ. Ọ nọchiri nna ya, Stephen Bechtel Sr., dịka onye isi oche nke Bechtel Corporation na 1960 na onye isi oche na 1969. Ọrụ ya na ụlọ ọrụ ahụ were afọ iri atọ ruo mgbe ọ lara ezumike nká na 1990. N'oge ya, ụlọ ọrụ ahụ nke a maara na mbụ maka ọrụ ya na Hoover Dam na Bay Area Rapid Transit, gbasaa akara ụkwụ ya zuru ụwa ọnụ site na ịrụ ọrụ na Channel Channel n'etiti France na United Kingdom, King Khalid International Airport na Riyadh yana Jubail Industrial City na Saudi Arabia. A na-ewere nke ikpeazụ a dị ka otu n'ime ọrụ injinịa obodo ndị kasị ukwuu n'oge ahụ. Ụlọ ọrụ ahụ tinyere aka n'ịrụpụta mmanụ ụgbọ mmiri na North Sea, ụlọ ọrụ gas na Algeria, Indonesia na United Arab Emirates, nakwa na nhicha nke ebe a na-emepụta ihe ọkụkụ nuklia
Ebe a na-akpọ Three Mile Island dị na Pennsylvania.