Road Bridge 01 (excerpt)

Recorded by duct-taping two piezoelectric (contact) microphones, approximately 20 feet apart, to the underside of this road bridge: http://goo.gl/maps/Yf7t As an aside, someone called the police while I was recording, leading to an odd conversation regarding sound art with two local Sheriff's deputies. This is an excerpt of a longer recording, which can be found here.