Its probably easier to measure the frequencies if you provide the actual recording, not a modified version of it.
At which time point of the recording is the annoying sound particularly prominent? I am asking because there is a lot low-frequency noise in the recording. What seems to be prominent to me is a component at 90.5 Hz, and another one at approx. 179.5 Hz. First I though these were directly related, the second one being an overtone of the first one, but this is most likely not the case. There are also quite clear components at 60, 120 and 240 Hz, likely related to power frequency (unless you live in country with 50Hz AC frequency, but from the file name I infer that you live in the US). 75 Hz is also visible, as is something at approx. 62.5 Hz and 46 Hz. And yes, unaltered original recording would be more suitable.
Also where I live there's a big river nearby with a lot of commercial ship traffic, about 10km away, sometimes at a quiet night I can hear the ship engines or rather the propeller(s) faintly stomping.
In the last two and a half years I have suffered with first, jolting vibrations in July 2008, then by December 2008 loud noises, becoming more and more frequent. Originally I thought it was a factory, but over a year after it started I found the "first" offender: a cell tower miles from my home, generating low frequency sounds from the top that have created a torment that I would wish only on terrorists at Guantanimo! Until I had a High-Fi recorder I had no proof at all, only "crazy" accusations. I have found more than one tower too, different nights, different directions, same inhuman misery that only myopia could design.