Yeah, i guess Jacksparrow is right. Since you have the copy of your visa, take it to the international advisor and tell them to notarize it. Because i am sure every international office will have the copy of your important documents. So, once they notarize that, at least you should be able to use that for some official purpose here in U.S. But i doubted whether that will allow you go outside the country and come back in or not. So i guess that would be a good option. Yeah, one of my sister lost her passport just a day before she was about to go to Nepal. She even cancelled her flight but later she found it. Lucky her.. Good luck bro..