Just want another set of eyes on this one.http://www.tomnod.com/campaign/campaign_1477/question/68361
could possibly be since there is this area just SE of the artifact. which looks like some impact sites I've seen. Magnafication doesn't reveal much but then in a crash things don't look normal.
I am thinking a bridge which is common over streams prone to flash flooding. Or power lines which their standards as opposed to US of A standards may just be put up tree limbs in the way or not. But I am leaning towards a bridge.