AARoads Forum

Please login or register.

Login with username, password and session length
Advanced search  


The next forum trivia night will take place on OCTOBER 30, 2019 at 8:15 PM Eastern.

Author Topic: China Builds A Bridge In Just 43 Hours  (Read 3183 times)

Stephane Dumas

  • *
  • Offline Offline

  • Posts: 1919
  • Last Login: Today at 04:10:30 PM
China Builds A Bridge In Just 43 Hours
« on: November 27, 2015, 08:44:04 AM »

To be more precise, it's a viaduct over an expressway. I spotted that video showing a viaduct in China built in 43 hours via a blog post at ZeroHedge


  • *
  • Offline Offline

  • Posts: 72
  • Age: 44
  • Location: Brighton, ON
  • Last Login: November 28, 2019, 08:37:08 PM
Re: China Builds A Bridge In Just 43 Hours
« Reply #1 on: November 27, 2015, 08:52:50 PM »

That is rapid bridge replacement.  MTO is currently doing this on ON-417 in Ottawa.  MTO has done this on several Bridges on The Queensway (417) over the last five years now.


  • *
  • Offline Offline

  • Posts: 716
  • Location: Midwest
  • Last Login: September 06, 2018, 02:05:15 PM
Re: China Builds A Bridge In Just 43 Hours
« Reply #2 on: November 27, 2015, 10:25:40 PM »

OK, they didn't do it in 43 hours, but they never closed it all while they replaced it.

3 330' spans (single track) over Missouri River, Blair NE in the earl/mid 1920s.  Chicago & Northwestern Railroad did it.  To my knowledge, with no fatalities.

So, what you're seeing in the picture, the span furthest to the right is the remaining original early 1880s span with a supporting trestle being erected beneath it.  The center span has had the original span removed after it was supported by the trestle, and the trestle will support the new span till it is structurally complete and can hold itself.  The span on the left is complete, and the temporary trestle has been removed.

The left span and the center span cannot have simultaneous trestle structures as that would block river traffic.  With the trestle supporting the track at all times, the delays to passing trains were minimal.  Also, most of the heavy equipment used to take down and erect the bridges was mounted on rail cars, and they could be wheeled in and out rapidly to clear the tracks for passing trains.

I don't know how long it took, I'd think at least one spring and summer, if not more.

The original spans were not wasted, they were taken to Wyoming in pieces and reassembled. They were shortened, and that allowed them to carry the heavier trains in use.


  • Everybody Obeys the Octagon
  • *
  • *
  • Offline Offline

  • Posts: 12865
  • Elimitante the truck trarffic,

  • Age: 36
  • Location: New Jersey
  • Last Login: December 08, 2019, 09:58:21 PM
    • Alps' Roads
Re: China Builds A Bridge In Just 43 Hours
« Reply #3 on: November 30, 2015, 09:20:10 PM »

NJ has done this in a few locations, with more coming. Route 18/1 and Route 4/Jones Road are two examples.


  • *
  • Offline Offline

  • Posts: 3503
  • Location: Appleton, WI USA
  • Last Login: Today at 11:07:26 AM
Re: China Builds A Bridge In Just 43 Hours
« Reply #4 on: December 02, 2015, 10:37:04 AM »

CN (Canadian National) did the same thing when they replaced the Oshkosh, WI Fox River drawbridge on their Chicago-western Canada mainline in 2012.  They only had to detour trains for a day or so when they swapped the new rolling bascule span for the old 1899 lattice-truss swing span.  Ditto when they replaced the two fixed lattice-truss approach spans in that crossing for shorter simple beam spans as part of that project.



  • *
  • Offline Offline

  • Posts: 874
  • Last Login: February 03, 2019, 02:49:05 AM
Re: China Builds A Bridge In Just 43 Hours
« Reply #5 on: April 02, 2016, 11:31:25 PM »

I recall them doing something similar in Utah, I believe on I-215 or maybe I-15 or I-80, but I think it was the bypass. Either way, they built the entire bridge right by the old bridge. They tore down the old bridge (not nearly as fast), and in one night, closed the road, and moved the new bridge on hydraulic lifts onto the roadway and into position and anchored it in. Bridge opened, ready to go the next day.

Because of the space used to build the new bridge they could do it quickly without closing lanes, working around traffic, etc, and could do it while they were demoing the old bridge.


  • *
  • Offline Offline

  • Posts: 5730
  • Trust me, I'm a transportation engineer

  • Age: 25
  • Location: Albany, New York
  • Last Login: Today at 08:38:32 PM
Re: China Builds A Bridge In Just 43 Hours
« Reply #6 on: April 18, 2016, 01:59:24 PM »

NYSDOT often does this downstate. They've had a few rapid projects on the Hutch relatively recently.
Please note: All posts represent my personal opinions and do not represent those of my employer or any of its partner agencies.

Travel Mapping (updated weekly)


Opinions expressed here on belong solely to the poster and do not represent or reflect the opinions or beliefs of AARoads, its creators and/or associates.