Well, if that engineering bothers you, for those US citizens, maybe you should take a look a little closer to home,
Less than 50%
"The renovation of the Alexander Hamilton Bridge in New York is being overseen by China Construction America, a subsidiary of the China State Construction Engineering Corporation. The company uses mostly U.S. labor, but many coveted skill jobs such as engineering and design work are Chinese. The profits will also go overseas.

In Alaska, they are set to spend millions on foreign materials for the Tanana River Bridge Crossing and would largely fabricate the bridge overseas. Iron union workers took to the airwaves to express their outrage in seeing jobs go abroad.

"This is not the time to send more jobs to China," said the Alaska Iron Workers in a radio advertisement. "Our tax dollars will provide hundreds of jobs there, not at home."

U.S. law does requires major infrastructure projects to give American companies preferential treatment under Buy America, but companies can opt out and choose a foreign company if there is a significant cost differential. In the Alaska case, officials contend that even with laws that favor domestic companies, the difference in cost was still too high."

[link to abcnews.go.com (secure)]