When the Golden Gate Bridge and the Bay Bridge were built in the lat 1930’s the toll was established at $.25 each way to be collected until the bonds that financed their construction were paid off. As of January 1st, the tolls on ALL the Bay Area Bridges ( one way) went from $5 to $6. But that’s for passenger vehicles. I have not looked at the “per axle” toll increases ( I am assuming that they have been increased as well) so if you tow a utility trailer (single axle) across a bridge last year, you cease to be a passenger car and you pay $5 per axle, so for that trailer, you paid an additional $10. Imagine an 18 wheeler (that’s nine axles) was paying $45 to cross. If, as I suspect the per axle toll also went up a dollar, that truck is now paying $54 ( which is ultimately paid by the consumers who by the stuff the truck is carrying.
do you have figures annual maintenance (without toll taker pay) vs income?
18 wheelers usually have 5 axles, unless they consider a typical trailer axle as 2 axles because it has 4 wheels.