Blair County Traffic Cams I-99 @ Plank Road I-99 @ Frankstown Road I-99 Off Ramp @ US-22 (Cross Keys) I-99 & 17th St. 17th Street @ Valley View Road 17th Street @ Pleasant Valley Blvd. Plank Road @ Logan Blvd. Logan Blvd. @ Convention Center Convention Cntr Blvd. @ Convention Cntr Dr. RT-764 (6th Ave) @ Logan Blvd. Chestnut Ave. @ 4th St. 7th Ave @ 7th St.