Why don't road users pay for the land the roads are on? Beyond construction and maintenence. If 1 square foot of land costs $600 (manhattan), and with say an op

Why don't road users pay for the land the roads are on? Beyond construction and maintenence. If 1 square foot of land costs $600 (manhattan), and with say an opportunity cost of 2%, that's $12 a year per square foot. A 13' lane would thus cost $156 per foot, or $800k per lane-mile. Assuming an average 4 lanes per street/avenue (including parking) that would be the best part of $2bn a year for roads in Manhattan alone.