For a third straight Thursday, there will be rolling slowdowns and delays on Interstate 84 between 12:30 p.m. and 2:30 p.m. for rock blasting necessary to build the latest segment of the Historic Columbia River Highway State Trail. The up to hour-long delays will be the result of the third in a series of as many as seven blasts in the coming weeks near milepost 53 in the Lindsey Creek area. The Oregon Department of Transportation says the blasting is necessary for construction of the Historic Columbia River Highway State Trail segment connecting Wyeth and Lindsey Creek. At Lindsey Creek, blasting will create room for the new segment of trail in the existing rock slope. This work is located in the same area where eastbound traffic is temporarily diverted into one lane of westbound I-84 due to fire debris removal activity from the Eagle Creek Fire.