Why does the interstate bridge have a secondary gate chain that drops down when the bridge is about to lift. Those gate chains are connected to the hydraulic door
@@garbagemanbear406 did you see the part where the truck overran the barricade? It's actually more like a Railroad crossing arm. That chain net is what would actually stop a runaway vehicle from diving into the river.
Traffic lights weren’t installed until at least 2005. Old photos of the bridge showed that it had black boxes that would activate “STOP” when drawbridge was active
Those STOP signs are still there today (though about a year ago someone hit and destroyed one of the 4 main ones). I don't remember when the lights went on, but I wanna say late 90s (about the same time the Hawthorne bridge in Portland switched it's STOP signs out for lights)
Yeah the semi truck would have been okay to keep going. The drawbridge operator would probably see he was on the bridge and not lower the gates at the far end of the bridge until he was clear of the bridge. Like others stated though, he may have been trying to stop anyway, and it takes longer to stop a semi truck than it does to stop a car.
Howdy Sean, I was wondering if I could show your video for part of one I'm working on? (With credit / your permission) I'm putting together a video about the engineering behind the Interstate Bridge and the replacement that almost happened a decade ago. I actually hung out for an entire day in Vancouver hoping to film the lift, but no large ships came by. So I had to pack up without the shot. This video is, frankly, amazing. Anyway, if you're open to sharing -- that would be really cool. If not, it's all good. Cheers, Rob
Incidentally that's exactly why I wanted to start recording when I saw the bridge lift warning signs. I just don't see enough videos of the actual lift process, especially not from the driver's perspective.
@@jordansean18 AWESOME JordanSean! Thank you so much! (What name should I use for credit, e.g. "(Name) was driving on I-5 and saw the bridge lifting...."?)
@@RoadGuyRob you can just say "Sean Bates". This is not an anonymous account (though i don't have the name always rendering consistently. ) Thanks for asking!
I think the bell was just the door chime on my car. I don't recall hearing any bells on this bridge, just the horn and sirens.. and maybe the beeps from the pedestrian gates
Simi truck take longer to stop than a regular cars i play ats from time to time I had no warning as open I had to slam on the brakes and ended up crashing head on into the bridge because around 70 plus my truck not start and it totaled my trailer that I was pulling
I5? I guess this is the bridge at Portland, on the border between Oregon and Washington, right? (Exit number 1, and the road number in a silhouette of George Washington's head are a bit of the hints). I guess that trucker thought he/she could make it.
@@jordansean18Ah, I see... Hard for me to tell since I've never been there (in fact I've never been in the States at all. I'm Dutch, thus European, you know), so I gotta take your word for it, and I guess it's indeed pretty hard to get a truck to stop from the situation you describe.
The air sirens are located near all the highway warning signs, and the horns are near the motor houses on each of the two lift spans (I think? Might be on the control booth between the spans)
Seeing those lights in the tower and the blinking red lights make me think about wanting to go to CBS Television City in Hollywood, California for my 50th birthday; giggle!🤭🎂
📺When one of the passengers exclaimed "Don't run the barricade, you dork!" It sounded like he was quoting a line from a science fiction TV show or movie, giggle!🤭
When I get a car again, I want to stop at those lift- and drawbridges again, so that I can put my car in park, and long-kiss my sweet bonbon; while he's hanging on to me; giggle!!🤭
Me and my mom have crossed that bridge several timex on the way to Washington for doctors appointments,never actually seen it opening though,interesting!
@@jordansean18 I think it's both the bridge and vessels, they do that on a lift bridge in Duluth, MN. I believe it's tradition to do this as the bridge tender knows well in advance that the vessel is coming.
