“do you have figures annual maintenance (without toll taker pay) vs income?”
No, but the higher tolls are reflective of the outrageous overruns on new bridge construction. The new northbound Benicia Bridge came out more than double it’s projected costs. They had to do some very expensive “pile driving” for the bridge’s supporting columns because it was harming the fish in the Sacramento River. The new Bay Bridge Eastern Replacement ( which is a thing of beauty, I will grant you) also went way over budget, and now they are concerned that some Chink steel used in it may be a problem.
The big problem with that bridge, amazingly enough, was U.S.-manufactured bolts made, I believe, from galvanized steel, which apparently corroded easily from the salty moisture in the air. Unless, of course, the Chinese steel, not subject to the usual stringent U.S. quality control, is already showing its wear.