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Wait so all this lets them pave a 100 meters a week (assemble bridge on one weekend, pave on Monday, then disassemble the bridge the next weekend after the asph
by ummonk 2y ago
Wait so all this lets them pave a 100 meters a week (assemble bridge on one weekend, pave on Monday, then disassemble the bridge the next weekend after the asphalt has dried)? That seems horribly slow and expensive.
- cryptonector 2y agoNo. This bridge travels. Look closely: it has wheels and it's motorized.
- Plankaluel 2y agoOnce installed, the bridge can be driven along the road when a 100m segment is finished
- ssl232 2y agoPresumably the road has to be closed for the bridge to travel? I assume this takes place at night.
- tantalor 2y agoThat probably just takes a few hours, easy to do. And you can start/stop a few times to let cars go over.
- giantg2 2y agoIf it's moved slowly enough, I don't see why traffic couldn't drive on it.
- phire 2y agoI guess it's theoretically possible to engineer a bridge that can move with traffic on it. But this bridge is engineered with solid feet for taking traffic loads. The wheels are only extended for movement and wouldn't be able to take the load of traffic.
- deleted 2y ago[deleted]
- shikon7 2y agoDuring the night, there will be 1 lane open in each direction (one on the side of the bridge, and one on the opposite carriageway), so the bridge can be moved.
- kinnth 2y agooh this is cool. I did think for a 2 day setup and 1/2 day takedown it wasn't a huge efficiency saving but it is if you move it down the road at the same time. As the comment above mentions, safety is a huge factor too.
- niccl 2y agoI think they pave 100 m, wait til it's dried (next day, perhaps) then drive the bridge 100 m up the newly paved bit and start again. No break
- onthecanposting 2y ago100m at 1 lane is around 430SY. That's probably 2hrs of milling and an hour of tacking and paving, with maybe another hour or so for incidentals. So you may only get half a workday of production. For time consuming repairs, like full-depth replacement, the setup time cost may not be significant. Keep in mind, though, you don't lose a lane of traffic. There is no need to truck in jersey barriers. You don't have to build an entire temporary detour road. You don't pay a consultant $200/hr to design a traffic control plan. I think the real value is safety. The crew is shielded by the bridge and you have complete grade separation from traffic. That's a lot better than an orange barrel being the only thing between you and a minivan.
- stevage 2y ago430SY? What's SY? Square yards?
- onthecanposting 2y agoYes. We don't use metric in the USA and you can't make us :)
- Log_out_ 2y agoI have a addon that autoconverts imperial units. Your comment is the only thing peaking out of the insanity bubble. =)
- Zecc 2y agoI'm not American, but I would have understood what you meant had you written sq yd instead.
- Qwertious 2y ago>Yes. We don't use metric in the USA and you can't make us :) NASA demonstrates otherwise.
- mr_toad 2y ago
- xyst 2y ago> That seems horribly slow and expensive. That’s because it is. Welcome to the world (in the case of USA, the entire country) car centric transportation.