Drilling holes in rock to prepare for a rock blast on the east side of the bridge.
Access (causeway) construction, which continues until mid- to late-January.
Pile installation at pier 2, using a rotary drill. Approximately 18 steel pipe piles, each 30 inches around, will be drilled 175 feet into bedrock.
West side of bridge area from the top of the pit on the east side
Rouchleau Pit boat tour
Photos Courtesy of Iron Range Historical Society Gilbert MN.
This one-minute video was shot in the Rouchleau Pit in Virginia, Minnesota in August 2013. The Rouchleau Pit is the site of two of the five alternative routes considered for the re-routing of Hwy 53. The three-mile-long pit is filled with clear, cold water.
This video provides a glimpse of the pit and the drilling barge that has been taking core samples along the route of the E-1A alternative route.
The drilling rig is attached to a barge that is moved to the designated drilling locations. The drill operators work 24/7 and use small boats to transport themselves and supplies back-and-forth between shore and the barge.
Hwy 53 aerial photos