Employee Benefit Research Institute

No matter their income level, a significant number of U.S. workers are likely to struggle to meet basic expenses during retirement, a new study of baby boomers and "generation Xers" released on Tuesday shows.

Over 40 percent of people with the lowest incomes face prospects of depleted savings within 10 years after retirement, with that number climbing toward 60 percent after another decade, according to Washington-based Employee Benefit Research Institute (EBRI).