So easy to learn before one speaks. The average home price in Eugene in 2016 was $264,000. The value of homes has increased on average at an increased rate over the last few years. Have lower priced homes increased at a similar rate? I don't know. Do you?
If there were one bond measure for all those you list, people would be upset they were being held hostage to passing a broad measure to get things they like, when they also must agree to fund things they don't like. 
Yes, there was a bond measure for roads five years earlier. Would you have been happy if it has been a 10 year measure and thus was not do to expire?
"Next thing" you'll be paying $800 more is correct. But when is "next thing going to happen"
Finally, if your mortgage payments are low like mine, you'd be paying 2x in property taxes what is paid  in a mortgage. Your statement lacks information. It depends on what your mortgage is. 
Your point: taxes are too high. Yes. Instead of $5,000 a year, I'd like to pay $1,000.