Sewer Repair....I'm on the hook for $18k for city road work??

[Brandon Capelle]

My properties sewer line needs repair under city street - $18k for excavation and road work alone. Sewer line connection to the main is 15 feet below grade so there is a lot of excavation and then road resurfacing once the sewer line is repaired. Can this really be 100% the property owners responsibility? No local insurance program is offered for sewer line protection like some cities. The property line ends at the boulevard. If I was only digging up the front yard I'd have no issue with assuming responsibility. But the road??? 

Anyone who has had experience I greatly appreciate your insight. 

BC