NORFOLK, Va. (WVEC) -- Drivers who used the Berkley Bridge to get to and from Norfolk during their lunch break Thursday found themselves at a standstill as some very large cargo made its way down the Elizabeth River.

The bridge was opened for about a half hour, beginning shortly before 1:30 p.m. The scheduled opening was to accommodate the transit of a 600-foot long, 140-foot wide floating dry dock that was bound for Colonna's Shipyard in Norfolk.

"This new dry dock will be a valuable new tool for the port," Capt. Rick Wester, Captain of the Port said in a press release. "But it is very large, and our first priority is to make certain the proper precautions are implemented to ensure the safety of the port."

PHOTOS: Giant dry dock floats to Colonna's Shipyard

Motorists in the cities of Norfolk and Portsmouth experienced delays as several tug boats steered the floating vessel along the Elizabeth River.

The bridge was lowered and reopened to traffic at about 2:15, but drivers can expect residual delays leading into the afternoon rush hour,