CNR Cisco bridge repairs after tie fire Jul 2013
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- Опубліковано 14 лис 2024
- Only took 3 days for them to make temporary repairs and get bridge ready for train traffic at slow speed. End of video shows first train across.
Each wood tie on an "open deck" steel bridge such as this one has notches or "daps" on the underside of the tie only about 1/2" deep to fit over the steel. (If dap is cut too deep, wood between daps tends to split and break off). Every 2'nd or 3'rd tie has 7/8" holes drilled from top to bottom just outside the girders. L shaped "hook bolts" are inserted from below the tie and a washer/nut is placed on top to secure the tie to the bridge steel. It is preferred to cut the daps and drill holes at the tie manufacturing shop before the ties are creosoted. The creosote will then completely cover the wood, even in the holes. To maintain correct spacing of ties, several methods are used. In the old days, timbers about 8" x 8" were bolted to the ends of the ties. Now some railroads use steel "tie spacer plates" 1/2" thick x 3" wide lag screwed to each tie. Sometimes wood blocks are placed between ties. If bridge is on a spiral or curve, each tie is designed to provide correct superelevation at each tie, so a bridge could have many different ties. They number the ties so they will be installed in correct locations. If a walkway is provided, about every 5'th tie is made about 2 feet longer to support the handrail post and steel walkway grating. On Ebay under "smokeywoodstover" I sometimes sell a complete set of railroad bridge drawings showing all this in detail.
Each wood tie on an "open deck" steel bridge such as this one has notches or "daps" on the underside of the tie only about 1/2" deep to fit over the steel. (If dap is cut too deep, wood between daps tends to split and break off). Every 2'nd or 3'rd tie has 7/8" holes drilled from top to bottom just outside the girders. L shaped "hook bolts" are inserted from below the tie and a washer/nut is placed on top to secure the tie to the bridge steel. It is preferred to cut the daps and drill holes at the tie manufacturing shop before the ties are creosoted. The creosote will then completely cover the wood, even in the holes. To maintain correct spacing of ties, several methods are used. In the old days, timbers about 8" x 8" were bolted to the ends of the ties. Now some railroads use steel "tie spacer plates" 1/2" thick x 3" wide lag screwed to each tie. Sometimes wood blocks are placed between ties. If bridge is on a spiral or curve, each tie is designed to provide correct superelevation at each tie, so a bridge could have many different ties. They number the ties so they will be installed in correct locations. If a walkway is provided, about every 5'th tie is made about 2 feet longer to support the handrail post and steel walkway grating. On Ebay under "smokeywoodstover" I sometimes sell a complete set of railroad bridge drawings showing all this in detail.
I have been asked how the ties are attached to the bridge:
Each wood tie on an "open deck" steel bridge such as this one has notches or "daps" on the underside of the tie only about 1/2" deep to fit over the steel. (If dap is cut too deep, wood between daps tends to split and break off). Every 2'nd or 3'rd tie has 7/8" holes drilled from top to bottom just outside the girders. L shaped "hook bolts" are inserted from below the tie and a washer/nut is placed on top to secure the tie to the bridge steel. It is preferred to cut the daps and drill holes at the tie manufacturing shop before the ties are creosoted. The creosote will then completely cover the wood, even in the holes. To maintain correct spacing of ties, several methods are used. In the old days, timbers about 8" x 8" were bolted to the ends of the ties. Now some railroads use steel "tie spacer plates" 1/2" thick x 3" wide lag screwed to each tie. Sometimes wood blocks are placed between ties. If bridge is on a spiral or curve, each tie is designed to provide correct superelevation at each tie, so a bridge could have many different ties. They number the ties so they will be installed in correct locations. If a walkway is provided, about every 5'th tie is made about 2 feet longer to support the handrail post and steel walkway grating. On Ebay under "smokeywoodstover" I sometimes sell a complete set of railroad bridge drawings showing all this in detail. - Авто та транспорт
In 1978 I worked on that bridge as a 17 yr old high school student- summer job. The year prior it caught on fire and had all it’s ties replaced at that time. I worked on resurfacing a couple of other CNR bridges in the following summers and can say that worker safety was not a priority with CNR into the early 80’s. I’m surprised no one got hurt back then
I got to that side of the river on the little power line access road that starts at Keefers.
at 7:30 2 of the thickest planks on the bridge ! what in the hell were they thinking passing the load over them ? insanity !
+imautuber444 Canucks....nuff said!
imautuber444 Yeah that's dumb of them to be there, but maybe they have to be for some reason. I certainly wouldn't volunteer to do it though.
There was no real choice to get to their working place. The alternative would be to follow the excavator onto the bridge, but that would probably mean doing some unsecured steps around it.
There is NEVER and excuse to put oneself under a suspended load. PERIOD.
It's okay, they've got hardhats.
WTF were you thinking 7:30 yes have to agree
On an open-deck railroad bridge, those are not called "ties". They are called "bridge timbers". Note that they are standing on edge, not laying flat as conventional ties do. Also, they have a larger cross section than conventional ties.
They are bridge ties. Take it from someone that worked in a railway bridge engineering office for 24 years.
@@smokeywoodstover , I wonder how big those ties were. They look like 8 x 12.
Will measure ties and post size here. On Ebay I'm selling bridge drawings of BC Rail (4000+ drawings). Sizes of ties are shown on each bridge. Look for "smokeywoodstover". and "BC Rail PGE historic plans of bridges, buildings, track charts, route map"
I measured some of the ties. They are all 12 inches wide. At east end on the curve they are 23 feet long. 16 inches high at one end and 22 inches high at other end. They are cut this way to provide superelevation. On straight track at middle of bridge they are 18 inches high and several feet shorter.
Did an investigation reveal the actual cause of what started the fire? Does anyone know the total cost for the repairs? Very Very nice video. I don't think I would have ever seen this without your great work.
Wow...WCB infractions up the ying yang!
Constant Neglect strikes again, luckily no one was hurt and no chemicals were spilled.
There are chemicals on railroad ties tar ash&vanish that's why it's a federal crime to remove them even if there no longer used
I figured cn would switch to concrete ties cause about 58 minutes east of there in spences bridge bc the cn rail ties are concrete
WCBC must have had a hay day with those two workers crouched down between the ties! If that chain would have broke or let go it would have been game over.
I hope they painted the bridge after replacing the burnt ties.
Utter recklessness lifting ties over workerss
best film ever. that is some tough ass people right there. not for me. well 150 hr maybe
How do they fasten the ties to the girders? Are they bolted or some kind of clamp? I can't see how they're doing that.
How did you get to that side to film this?
No OSHA in Canada?
7:20 how is that even slightly smart?
I'd have to agree with the other comments about dumb and dumber under a load well over a ton swinging above them. Is the foreman someone that used to be from the Mexican or Chinese workplace safety board?
7:30.. Oh Well! them two are replaceable..
True...they are replaceable. But they have the important job of monitoring the movement of the crane. Note they are replacing the roasted ties with new ties, using the ties as a path to move the crane into position. Their job is to monitor the positions of the crane's treads to prevent it from taking a dive into the river far below. I'm sure if you were the crane operator, wouldn't you be worried about falling to the river with the crane? As well as the rest of the crew working on a dangerous job.
@@wizardofodds8239 I work for the Bridge Department and I would be worried about getting crushed
@@wizardofodds8239 The crane's treads aren't on the tracks; in fact, they aren't even moving! The crane is a modified MOW piece of equipment that sits on a type of flatcar that has rail trucks/wheels that it rolls on the rail with. Those two guys aren't monitoring the movement of the crane or it's treads...lol. How stupid would it be to try and make a crane ride on railroad tracks using it's treads, regardless of being on a high bridge or on flat ground???
Yes it still looks like were still dumb as ever when it comes to safety. I wonder if all the cables use to lift the load were even within load limits! I know what they will tale..." know one was killed"... ya.... and "know other way to do it"...... heard all that before and after!
So they didn't replace those sagging melted cross beam truss links? You would think after seeing how bad a truss link reacts to heat when the towers fell on 911 you would want to fix that?
MidnightVisions It's OK the Company Engineers said So 😅
If they seem intact and seem strong they will keep them but not then they will replace them
@@gaugebrady5416 ‘seem’.
In America they abandoned the bridge and complete facility after a fire poukeepsie n.y.
The railroad wanted to abandon the bridge before the fire took place, and the fire made a good excuse to do so, hence why quite a few people think that fire was deliberate.
Timothy Barney Thanx for your reply .nice walkway they made .better as rail crossing only crossing by Albany.😎
Yep, that's basically what I heard. Conrail had the Poughkeepsie bridge, and the one outside Albany near Selkirk yard, and didn't want to maintain both. Albany being a former NYC bridge, and Poughkeepsie being former Lehigh & New England.
the bridge had no rail road value
What. Started the fire
those hytrackers are made in th loop !
Did they replace every single tie
Near far end (west end) there is a couple of spans with ballast deck and west of that is an old original span with open deck. Those did not burn so they were not replaced. The ballast deck spans replace the old original spans that were warped and buckled from a previous fire about 1977. That took 3 months to repair.
smokeywoodstover how did the fire start
In the on fire video it looked like they were starting to install ribbon rail on the bridge.
How many hours did the fire burn?
Burned from about 9am to 3pm, then it was put out by helicopter
What caused the fire??
Next time, use concrete ties
Concrete doesn't handle repeated flexure very well, and horizontal ties spanning box girders would flex with every pair of trucks. There might also be a problem with freeze/thaw cycles on a bridge in that climate.
I read where the concert are ok for passenger but no good for heavy trains.
I think that steel is all no Good any more !????
Safety is not the strongest knowledge huh?.NEVER stand or in this case,lay down under a heavy load what is hanging on a chain!..Chain can snap to..the crane can tip over..or even the crane driver can make a mistake by touching the wrong handle in his cabine. Yeah i know...1 of 10.000 th chances...but the guys would be one of that thousends,and then what? Just saying..and noticing as a ex worker with big cranes.
wood ? Why not paper?
Balls!
Burned bright
well OSHS has made it so safe for workers -- oh ya there are no jobs
Just drop the old ties into the river
идиотизм. деревянные шпалы обгорели, неужели проблемно купить и уложить железобетонные?
I used the translator to get your question in English. "
idiocy. wooden sleepers burned, is it really problematic to buy and lay reinforced concrete? They use wood ties because they are lighter than concrete and give some cushion or shock absorbing between the rails and the steel bridge. Many modern railroad bridges are designed with a concrete trough that holds regular gravel ballast and wood or concrete ties. This bridge was built in 1914 and is not strong enough to take the extra weight.