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Third St. Bridge siren in San Francisco

Posted: Thu Dec 05, 2019 5:19 pm
by Daniel
This bridge was constructed in the 1930’s and while the lift siren sounds like an STL-10, could it possibly be a six-port Bullard?

https://youtu.be/CLtKSGNJvak

Re: Third St. Bridge siren in San Francisco

Posted: Thu Dec 05, 2019 8:21 pm
by JasonC
Wow, he's having a lot of fun with the siren. As far as I can see on Street View, there is a Model D at eye level on the north end of the bridge, a Model A on the south end (both mounted to street light poles), an ATI on a pole on the south end of the bridge, as well as a couple of large speakers on the operators tower. No sign of the STL10, although it does sound somewhat muffled

Re: Third St. Bridge siren in San Francisco

Posted: Thu Dec 05, 2019 8:27 pm
by archizackture
Daniel wrote:
Thu Dec 05, 2019 5:19 pm
This bridge was constructed in the 1930’s and while the lift siren sounds like an STL-10, could it possibly be a six-port Bullard?

https://youtu.be/CLtKSGNJvak
Where is the siren exactly? I looked around in street view taken in 2013 and saw the ATI speaker array (definitely not it) and the Models A and D (probably the high-pitched sound at the beginning of the video) but I couldn't find any others. It definitely sounds like an STL-10 to me though.

Re: Third St. Bridge siren in San Francisco

Posted: Thu Dec 05, 2019 10:59 pm
by coastalsyrolover
It’s kind of hard to tell but maybe? I’d like to know more too.

Re: Third St. Bridge siren in San Francisco

Posted: Fri Dec 06, 2019 6:14 am
by FSThunderboltfan1000
I found it definitely not an STL-10.

Re: Third St. Bridge siren in San Francisco

Posted: Fri Dec 06, 2019 6:26 am
by Synther
It's a Bullard. I remember someone posted a picture of it a while ago, and I can't find it.

Re: Third St. Bridge siren in San Francisco

Posted: Fri Dec 06, 2019 8:56 am
by siren_face2000
I love how they use the classic "Train crossing bells" during the bridge lifting & dropping. And I like the siren usage too! I know one is used to warn people & vehicles that the bridge is about to lift, and another is used while the bridge is lifting & dropping. Neat video!!!

Re: Third St. Bridge siren in San Francisco

Posted: Fri Dec 06, 2019 11:23 pm
by Valra Bellkeys
FSThunderboltfan1000 wrote:
Fri Dec 06, 2019 6:14 am
I found it definitely not an STL-10.
If that is the siren sounding, which I bet it is, that is absolutely amazing. Like Tristan suggested, appears to be a Bullard. The first recording of a Bullard, other than the news clip featuring the high pitch rotating one going off.

Re: Third St. Bridge siren in San Francisco

Posted: Sat Dec 07, 2019 4:43 pm
by JasonC
Here's another video with the camera pointing toward the Bullard:

https://www.youtube.com/watch?v=ZA_e7AjL7iE

Re: Third St. Bridge siren in San Francisco

Posted: Sun Dec 08, 2019 1:24 am
by siren fan
Wow that is really cool!