The shear keys help control sway during an earthquake, but after 32 of 96 high-strength anchor rods — 3 inches in diameter and 17 to 24 feet long — broke in March, engineers say the seismic ...

Engineer Bob Brignano examines the exposed end of on anchor rod cast in 2010 undergoing a corrosion stress test for the new eastern span of the Bay Bridge in Oakland, Calif. on Friday, Aug. 2, 2013.

The threaded rod and nut assemblies — 17 to 24 feet long — connect the bridge deck and pier columns just east of ... heat treatment of 96 anchor rods in 2008 — the same batch where ...

The writer, who helped designed the bridge, calls the mistakes RIDOT made in the wake of the shutdown "colossal." ...

Engineer Bob Brignano examines the exposed end of on anchor rod cast in 2010 undergoing a corrosion stress test for the new eastern span of the Bay Bridge in Oakland, Calif. on Friday, Aug. 2, 2013.

The bridge tower is secured by 424 massive anchor rods, each 25 feet long. Bridge officials reported last fall that about 95 percent of the rods had not been surrounded by grout, a cementlike ...

SAN FRANCISCO (BCN) — Anchor rods in the tower of the Bay Bridge’s new eastern span are not broken and 99 percent can withstand a major earthquake, Caltrans officials announced Wednesday. The ...

But side-by-side images of the anchor rods from both inspections have left some skeptical. (Courtesy: RIDOT) An image from the emergency inspection report shows the anchor rod severed at the base.