Saturday marked the 42nd annual Mifflin Street Block party in downtown Madison. The 42nd annual event drew thousands on Saturday. Madison police say the party started early, mainly because of nice weather, leaving revelers heavily intoxicated throughout the day, filling detox centers. Police say arrests actually went up from last year. As of 8 PM there were more than 200. That compares to 164 in 2009, and 440 in 2008.