there is a classic old arched metal bridge spanning the Brazos river that I would really like to take some videos / stills of from the river perspective but I VERY concerned about flying around all the large metal beams that comprise the center span of the bridge - I don't want to end up flying a P3 into the Brazos. I would be able to do pre-flight check and calibration down stream. Any thoughts on if I should attempt this project? The link will take you to a picture of the bridge. https://s.yimg.com/fz/api/res/1.2/i...X-Brazos_River-1934_Brazos_River_Bridge_3.JPG