No, you're not imagining it. From the Los Angeles Daily News:
Nearly two-thirds of the major roads in the Los Angeles area are in poor condition, earning the metro region the second-worst ranking in the nation, according to statistics released today by a national transportation research group. Los Angeles roads were ranked the second-worst among the nation's regions with populations greater than 500,000, according to a report by TRIP, a Washington, D.C.-based nonprofit group, which analyzed government data from 2008.
Los Angeles also ranked second-worst for automobile operating costs due to poor roads, estimated at $746 annually. The dollar amount figures in repairs and maintenance, increased fuel consumption and tire wear.
The report listed 63 percent of Los Angeles' major thoroughfares as being in poor condition -- more than twice the national average for large population areas of 24 percent. It also said only 5 percent of major streets were in good condition.