ATTN: Fire dept. activity on Potrero b/t 24th and 22nd. IB & OB 9, 9R & 33 buses are being allowed through, but minor delays are likely through the area. IB & OB 48 will reroute via Utah St. -- avoiding Potrero b/t 24th & 23rd.Missed Stop OB: Potrero/24thBoard: 23rd/Utah(More: 19 in last 48 hours)