PITTSBURGH — The southbound I-579 ramp to Boulevard of the Allies is closed for the weekend so that crews can work on improvements. The ramp closed for about nine hours on Monday because of a large pothole. Crews will be making a permanent fix over the weekend. The ramp, which carries traffic onto outbound Boulevard of the Allies in Pittsburgh, closed at 8 p.m. Thursday and will remain closed through 6 a.m. Monday, Aug. 12. PennDOT announced the HOV lanes will be open for rush hour on Friday. The HOV 2 restriction will be lifted from 6 to 10 a.m. to lessen traffic congestion. Ramp traffic will be directed to the following detours: Southbound I-579 to southbound Boulevard of the Allies From southbound I-579, take the ramp to 7th Avenue/6th Avenue Take the ramp toward PPG Arena/6th Avenue Continue onto 6th Avenue Turn left onto Grant Street Turn left onto Forbes Avenue Turn right onto Craft Avenue Follow Craft to the Boulevard of the Allies End detour Bigelow Boulevard to southbound Boulevard of the Allies From southbound Bigelow Boulevard, take the ramp to PPG Arena/6th Avenue Continue onto 6th Avenue Turn left onto Grant Street Turn left onto Forbes Avenue Turn right onto Craft Avenue Follow Craft to the Boulevard of the Allies End detour Additionally, an around-the-clock lane closure on westbound (inbound) I-376 (Parkway East) will occur under the Birmingham Bridge from 9 p.m. Friday night continuously through 6 a.m. Monday morning for painting operations. Download the FREE WPXI News app for breaking news alerts. Follow Channel 11 News on Facebook and Twitter. | Watch WPXI NOW TRENDING NOW: