Sharraxaadda

Very large oak tree on the curb of 500 block of College Avenue partially fell during storm of 7/7/16. Large part in my front yard. Another part over drop lines of neighbors yard. Duke power did not cut or move any part of the tree when they responded to report after the storm. Tree is on street side of sidewalk between two properties and has been maintained by the city. I believe the tree is rotting as evidenced by internal structure revealed by break and is now unstable as all the weight is now distributed to the street side. Please advise, as this is too large a job for one property owner and a professional will need to remove the tree due to entanglement and proximity to power lines.