Dive summary:

• The chosen solution for how to take up the load of 32 anchor bolts that broke during post tensioning of concrete used in building the San Francisco-Oakland Bay Bridge is a set of specially made steel saddles to hold down shear keys that the bolts were to have secured.
• The saddles will add $5 million to $10 million to the $6.4 billion project, but the Toll Bridge Program Oversight Committee says they are the best choice and are half the price of an alternate solution.
• Engineers found out in March that 32 of 96 of the bolts, which are 3 inches in diameter and vary from 9 to 24 feet long, broke and were found during analysis to have developed hydrogen embrittlement that made them structurally inconsistent.

From the article:

The committee also asked the Federal Highway Administration to conduct its own review of the problematic bolts and the saddle fix. ...