Without a COA for that activity (and they are only very rarely granted), it's a clear violation of FAA rules, and could earn someone a fine. It's agains the FAA rules because it's dangerous.
Also ostensibly a violation, but perhaps not. I have gotten some AWESOME shots of a rather long civil war bridge here in VA. It's against VA law to "operate" the drone within park boundaries, just as it is agains NPS rules to operate a drone within national park boundaries.
HOWEVER, it IS permissible to fly over those same locations, just as long as you launch and recover from a permissible location (in your case, more than a 1/4 mile from the turn) and maintain visual on the craft. Solution? Have an observer with on the location with a phone (perfectly legal) to keep an eye on the craft in the objective area. In my case, I launched from about 1,500m away from a private farm that gave me permission.
NOT a violation.