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Train derailment near Córdoba, Spain

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Cloud Strife

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The death toll has risen to 42, unfortunately. 43 have been reported missing, so I expect that the last missing person will be found once they manage to lift the Alvia train.

El Pais is reporting that:

The driver of the Iryo train, which was hit by an Alvia train near Ademuz on Sunday, causing at least 42 deaths, contacted the Atocha command center to report that he had suffered "a snag" and that his vehicle had derailed.


It seems that the driver was unaware of the other train hitting his train.
 
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staleydm01

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Honestly I was heartbroken to hear this news, train travel in Spain has always been the easiest way to travel, I’m not sure how much of the line can operate at this difficult time and going in 2 months I was pondering taking the Malaga to Cordoba route but will the units be going over the track and how many will still risk such a journey, how frequent as a event like this happened as I don’t live in Spain but there yearly.
 

rmHawk765

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how many will still risk such a journey, how frequent as a event like this happened as I don’t live in Spain but there yearly.
I am hoping that this will not uncover Railtrack levels of neglect. Assuming ADIF is found to be generally good with maintenance (I have no idea what their track record is like), the chance of a similar situation happening again should be extremely low.
 

Angmering1974

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how many will still risk such a journey, how frequent as a event like this happened as I don’t live in Spain but there yearly.

We flew to Lisbon then looked at trains to Spain - bit of a hassle. Then we flew to Málaga and this disaster happened. We then thought we'll still find a way up to Barcelona then the two accidents happened. We're not religious but sometimes things aren't meant to be...our interrail passes might go unused
 

Harpo

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We flew to Lisbon then looked at trains to Spain - bit of a hassle. Then we flew to Málaga and this disaster happened. We then thought we'll still find a way up to Barcelona then the two accidents happened. We're not religious but sometimes things aren't meant to be...our interrail passes might go unused
In railway parlance, a right side failure.
 

Paul AC

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Honestly I was heartbroken to hear this news, train travel in Spain has always been the easiest way to travel, I’m not sure how much of the line can operate at this difficult time and going in 2 months I was pondering taking the Malaga to Cordoba route but will the units be going over the track and how many will still risk such a journey, how frequent as a event like this happened as I don’t live in Spain but there yearly.
Starting this coming Saturday there's five days of special charter train (loco haulage plus track-bashing) basically around the Barcelona area, with probably around 50 Brits and others on board. I know some are already in Spain, some have started journeys today, I fly out on Friday. The majority are seasoned travellers who won't consider backing out. The Barcelona area storm and its aftermath will no doubt cause plenty of problems, but I'm sure we'll cope.
 

LYuen

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My experience of the Tōhoku Shinkansen from Tokyo to Aomori (albeit over a decade ago) on an E2 type train at the 275 km/h line speed was of a much harsher (and noiser) ride than I had expected, with quite a lot of ‘fussy’ movements, much less smooth than my experience of TGV type trains at speed. The license built CRH2A variant I ride in China was smoother than in Japan, but not as good as a TGV family train (though the Shinkansen has a more pleasant interior than any TGV). My one Spanish high speed experience was a Trax class 252 loco hauled Talgo in the very early days before the line through to Malaga was completed. From memory, at 250 km/h that was OK, but no better…

On the same trip, I ended up in the same Couchette carriage on the sleeper from Irun to Madrid and then back 10 days later. This hunted alarmingly at speed all night giving me a bad first impression of track and rolling stock maintenance and by contrast the Talgo was better…
Trains with Jacob Bogies will typically have better ride, as vibrations are shared and balanced out between the nearby carriages.
However, such design is only seen on push-pull high speed trains, mostly TGV based trains and also the Talgo, which could explain why the ride was much better.
Shinkansen, China HSR use classic bogies. The Iryo train and most Alvia trains suffering from vibration, are distributed power high speed trains with classic bogies.
 

Thames99

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El Pais is reporting that a speed limit of 160 km/h is being imposed for 78km of the Madrid-Barcelona line

This is due to "mal estado de varios puntos de la vía" (the bad state of various point of the track). The article states that this was reported by a driver. It also mentions bad vibrations experienced on the line since the summer

== Doublepost prevention - post automatically merged: ==

El Pais have also published a photo of a bogie that they say they discovered 270 metres from the line. Does anyone know which train this would be from?
 
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ainsworth74

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El Pais is reporting that a speed limit of 160 km/h is being imposed for 78km of the Madrid-Barcelona line.

This is due to "mal estado de varios puntos de la vía" (the bad state of various point of the track).
Few more echoes of Hatfield then...
 

Cloud Strife

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Honestly I was heartbroken to hear this news, train travel in Spain has always been the easiest way to travel, I’m not sure how much of the line can operate at this difficult time and going in 2 months I was pondering taking the Malaga to Cordoba route but will the units be going over the track and how many will still risk such a journey, how frequent as a event like this happened as I don’t live in Spain but there yearly.

I'd expect things to go back to normal pretty quickly. The high speed network is absolutely critical in Spain because of the huge distances, and the airlines simply can't take up the slack. To give an example, to get from Valencia to Malaga right now involves either a flight or a very torturous rail/coach journey that takes 10 hours.

Assuming ADIF is found to be generally good with maintenance (I have no idea what their track record is like), the chance of a similar situation happening again should be extremely low.

This is the million dollar question. The drivers have been saying quite publicly now that the track is not as good as it should be, and it seems that the complaints aren't just in this area, but on other high speed lines too. From what I can put together, the issue is that Spain has actually developed a very competitive high speed railway, but ADIF haven't increased maintenance to account for the rather intensive usage of the lines.

Wasn't it during last summer that the track was renewed?

It was, but I think it's important to note that this section of track is in a fairly wild place weather-wise for Spain. It's quite normal to see huge temperature variations there, ranging from brutal heat to intense cold. Having said that, if the videos are true, then the track wasn't renewed particularly well.
 

rmHawk765

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From what I can put together, the issue is that Spain has actually developed a very competitive high speed railway, but ADIF haven't increased maintenance to account for the rather intensive usage of the lines.
Spain does like to take pride in its HSR network, it would be a real shame for a comprehensive report to find its safety is subpar.
 

Paul AC

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Starting this coming Saturday there's five days of special charter train (loco haulage plus track-bashing) basically around the Barcelona area, with probably around 50 Brits and others on board. I know some are already in Spain, some have started journeys today, I fly out on Friday. The majority are seasoned travellers who won't consider backing out. The Barcelona area storm and its aftermath will no doubt cause plenty of problems, but I'm sure we'll cope.
That aged well..... it's all got very political, perhaps not surprisingly.... ADIF have canned the special trains this morning; basically all non-essential activities have been cancelled. Looking to try again later this year.
 

petergb

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Apparently it was a New York Times photographer who discovered the missing bogie. The NYT article here has some better pictures of the bogie in the stream, and also has a clear picture of the Iryo with a bogie missing.

edit: sorry it now seems to be paywalled, try the cached version

from the article:
The Italian state-controlled railway group ‍Ferrovie dello Stato, which is the majority owner of Iryo, which operated the derailed train, declined to comment about whether the undercarriage belonged to their train. Iryo did not return a request for comment. Renfe, the state-owned company that operated the second train, said questions about the undercarriage should be addressed to the investigators.
 
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I'd expect things to go back to normal pretty quickly. The high speed network is absolutely critical in Spain because of the huge distances, and the airlines simply can't take up the slack. To give an example, to get from Valencia to Malaga right now involves either a flight or a very torturous rail/coach journey that takes 10 hours.
One hopes so as there will be many people planning on taking the train to Spain in August to be in a good position to view the total solar eclipse.

We had planned to be in Leon but a change of plans prior to the current disruption means we should now be on a boat at the appropriate time.
 

Paul AC

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Note, a detached bogie, which it turns out is from the iryo, was found in a nearby stream by a reporter, and there appear to have been claims that no-one else had found it.

Extract, with Googlish translation:
RTVE.es 21.01.2026 - 13:26 | Updated: 14:05

Transport Minister Óscar Puente confirmed on Wednesday that there are "marks" on the bogies —the train's steering components—of the first five cars of the Iryo train . Puente also explained that other trains that had previously passed through that section of track had been examined , and "some similar marks were observed; specifically, on the two or three trains that passed before it." The minister made these remarks in an interview on the program "Mañaneros . "

These "marks" on the Iryo carriages—Puente also called them "notches"—are " one millimeter thick" and "several centimeters wide," and they are repeated on the first five carriages. All of this, the minister commented, suggests that "something we cannot yet determine has caused this on the front bogies and may have been the cause of the derailment."

On the other hand, Puente also indicated that Renfe has examined other trains that have passed through the same section of track at longer intervals, exceeding one hour , and that none of these markings have been found on them so far . "It also confuses us that, on one of the trains that does have markings, there are two, but on the left side of the train and not on the right, which is where the markings are visible on the Iryo line," he commented.

Therefore, the Minister of Transport has indicated that asserting that these marks "necessarily" correspond to a track break is "completely premature ," although he acknowledged that it remains one of the possible hypotheses. Nevertheless, Puente pointed out that new data and evidence are emerging and that the investigation continues to progress.

He claims that the Iryo piece found in a stream appeared on Monday and that he was a witness.

On the other hand, the Minister of Transport referred to the bogie of the Iryo train that was found partially submerged in a stream , about 300 meters from the crash site. According to a report published by The New York Times , this piece was neither cordoned off nor guarded by the authorities, although Adif (Spain's railway infrastructure manager) maintains that they had located it and that the railway accident investigation commission was aware of its existence.

Regarding this, Puente confirmed that he himself was present when the part was discovered. "I was there when it was located, and it was located on Monday morning," the minister stated. At that time, he continued, they knew that the front bogies of car number 8 of the Iryo train had disappeared, and therefore, Adif asked the Civil Guard to use a drone to try to locate them.

Ultimately, this wasn't necessary, according to Puente, because an officer alerted them that he had spotted "something" in a stream, which he described as wheels. Adif personnel then arrived at the scene and confirmed that they were bogies . "It is believed that these bogies may have been ejected by the impact, but the investigation will have to determine that," he stated. When asked why the piece wasn't cordoned off, Puente emphasized that it weighs 20 tons, is located in a stream, and that "it's not so easy for someone to pick it up and carry it away."

However, the minister has again called for caution because, in his opinion, an investigation of this nature "is not a football match that is filmed and broadcast minute by minute from the commentator's booth," as it can lead to "grotesque extremes."

He regrets the "confusion" following the publication of the Iryo train driver's calls

On the other hand, the minister also referred to the two conversations between the Iryo train driver and the control center at Madrid's Atocha Station, extracted from the train's black box. He lamented the "confusion" generated by these kinds of leaks, which "lead to interpretations that have nothing to do with reality."

The Iryo train driver reported a "junction" in Adamuz and asked for traffic to be stopped "urgently".

As he explained, when the Iryo train driver called Atocha station, "everything had already happened: the derailment and the collision with the Alvia train," but "he didn't notice." How is this possible? According to the minister, the first five cars of the Iryo train were not impacted and did not perceive "the movements" that caused the train to derail. Therefore, Puente indicated, when the driver got off the train, he saw that there had been a derailment , but he was unaware that there had been a collision with the other Alvia train , which was 800 meters away, and he didn't see it because it was nighttime.

The director of the 061 emergency service in Andalusia: "It took us almost 15 or 20 minutes to realize there was a second train."

On the other hand, Puente recounts that, in the initial call, the control center at Atocha was also unaware of the collision, and therefore the operator commented that "no train is arriving." However, as the minister explains, at that moment the Alvia had already collided with the Iryo and was derailed, and shortly afterward they discovered at Atocha that the Alvia was stopped and attempted to contact the train. Nevertheless, Puente pointed out that simply listening to the audio recordings of the Iryo driver is not enough to fully understand the sequence of events.
 

Paul AC

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I agree with hwl - the bogie pictured in the stream is not from the Iryo (Frecciarossa 1000) train.

A picture of the Frecciarossa 1000 bogie:

talian-fast-train-Frecciarossa-1000-a-view-of-the-train-b-view-of-the-bogie-of-train.png


...and the renfe S120 bogie:

Renfe-Class-120-Spanish-electric-multiple-unit_bogies_suspension-min.png


Note the difference in the secondary suspension, for one thing, plus all the things hwl listed in post #165 above.
I beg to disagree.

The bogie in the stream has a traction motor mounted on it - it would have had a flexible coupling to an axle-mounted gearbox, but that is presumably still attached to the axle, wherever that is. That motor is parallel to the axle.

S120 have right-angle drive from a longitudinal, body-mounted traction motor, like a UK 390. On the S120 that allows for the gauge-changing capability of the axle, on 390 it allows for the tilt.
 

hwl

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I beg to disagree.

The bogie in the stream has a traction motor mounted on it - it would have had a flexible coupling to an axle-mounted gearbox, but that is presumably still attached to the axle, wherever that is. That motor is parallel to the axle.

S120 have right-angle drive from a longitudinal, body-mounted traction motor, like a UK 390. On the S120 that allows for the gauge-changing capability of the axle, on 390 it allows for the tilt.
I changed my mind after seeing the second photo in the NY times (the photographer went into the river to take the photo) which is much better than the one in El Pais and also being able to look at it on a proper screen!

The Frecciarossa 1000 have very different designs of motor and non-motor bogies, the one in image B in post 171 is a non-motor bogie which has 3 inboard brake discs per axles but the motor bogies have wheel mounted discs.

On the Frecciarossa 1000 the cars 1,3,6,8 are motored (all axles) and cars 2,4,5,7 are unmotored. The missing bogie is a motored one with wheel discs matching the NY times photo (the underwater wheelset has wheel mounted discs) and the leading (at the time) wheel set of bogie is the one missing above the water line.

Edit: to add second much clearer photo image
bogie in river.jpg
 
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Paul AC

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Thanks for the update @hwl . Your posted photo is the one I saw - the bogie is "upside down"; the nearer axle is in place but there's no traction motor; the other axle is missing but the traction motor is in situ. You can see the primary suspension spring and where the radius arm (is that the correct term?) would have been. The secondary suspension air bag is visible as the "rubber ring" just above water level.
 

hwl

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Thanks for the update @hwl . Your posted photo is the one I saw - the bogie is "upside down"; the nearer axle is in place but there's no traction motor; the other axle is missing but the traction motor is in situ. You can see the primary suspension spring and where the radius arm (is that the correct term?) would have been. The secondary suspension air bag is visible as the "rubber ring" just above water level.
I hadn't seen that photo at the time of the original post just the earlier one.
Both traction motors are there - the nearer one is under water!

The whole bolster on the topside of the secondary suspension air bag has come off too.


~8 tonnes getting to 270m is a lot of energy, but was it really 270m form the line or 270m from the train?

Left side is closest to the camera
Screenshot 2026-01-21 203115.png

Which leads to the next question - where is leading axle, gearbox, and a pair of radius arms (the one on the far side looks partly there so 1.5?)

== Doublepost prevention - post automatically merged: ==

A few updates from Spanish news:
  1. The train Drivers are threatening to go on strike on 9/10/11th Feb over infrastructure under investment.
  2. The transport minister has asked that the accident is not linked to infrastructure under investment :oops:
  3. estimated to be less than 9 seconds between the derailment and collision
  4. The 5 leading coaches on the Iryo unit have groves on the right wheels as did the 3 Renfe trains in the preceding hour
  5. The emergency services were on the scene (around the Iryo train) for 20minutes before they realised there was second Renfe service involved.
  6. The signalling centre in Madrid also took a very long time to realise a second train was involved - not being able to contract it apparently didn't ring enough alarm bells.
Missing / Deaths
45 reported missing
43 bodies found so far
They expect the other 2 to be under the Renfe Alvia unit, one of the 2 still missing was the cafe operator on the Renfe train (and a survivor of the 2013 Santiago crash)
28 bodies on the Renfe Alvia train, 20 in the first coach, 8 in the second coach
6 bodies on the track immediately adjacent to the Renfe Alvia train
3 bodies on the track between the two sites, which train they were on TBC
6 bodies on the Iryo (coaches 7&8)
 
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ac6000cw

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Any idea where the gully/stream (where the bogie was found) actually is?

(Looking around Google satellite view in the vicinity of the crash site hasn't been very fruitful so far).
 

lfc84

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Any idea where the gully/stream (where the bogie was found) actually is?

(Looking around Google satellite view in the vicinity of the crash site hasn't been very fruitful so far).
250m away according to rtve
 
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hwl

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Any idea where the gully/stream (where the bogie was found) actually is?

(Looking around Google satellite view in the vicinity of the crash site hasn't been very fruitful so far).

In terms of where the bogie ended up - the NY times who's photographer found it is quoting 400m (rather than other Spanish sources 270m). Having a look on google maps (after watching the Spanish TV video paying special attention the the bridge just upstream of the bogie) it looks like the landing site is indeed just over 400m from the right hand track as the crow flies. The bogie is effectively 400m at 90 degrees to the left of the track from roughly the location of the original rail break, however this is a very unlikely trajectory and it is likely to have been ripped off slightly further north and travelled slightly backwards and hence further overall.

(The stream moves downstream from the bogie landing site towards the railway so it hasn't been swept downstream).

Based on the reported speed of the train at the time of impact there would only have been enough kinetic energy in the bogie to travel circa 260m (ignoring aerodynamic resistances) but it reached over 400m so it gained at least 50% extra KE in the event that ripped it off.
(Flight time will have been just over 7s minimum for the 400m)
Screenshot 2026-01-21 230407 b.png
Edit to add:

If it got ripped off circa 200m further north where the huge track damage is beyond the points, then the total horizontal flight distance component would have been ~450m with a max ballistic height of >60m.

The impulse required to produce this change in direction is massive
 
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John Palmer

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I believe the Iryo bogie is probably located adjacent to the eastern portal of the culvert that takes the stream running along the Arroyo Tamujoso beneath the railway - as shown on the attached extract from Apple Maps' satellite image; location is https://satellites.pro/Spain_map#38.012230,-4.563354,19. If that is correct then the bogie is almost exactly 90 metres from the nearest point on the northbound track.
Arroyo Tamujoso.png
The culvert is also a photographed feature appearing on a rambler's route recorded at https://es.wikiloc.com/rutas-sender...ierra-morena-villafranca-de-cordoba-174743468
 

Paul AC

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I agree with @John Palmer on the location of the iryo bogie.

I was looking at the Google satellite images of the area and the 'greenery' is masking the stream bed. There's a better view in OpenStreetMap's edit mode: the screenshot of the area, below, with a square marking the eastern end of the culvert, makes it more clear. Note that this is nearly in line with the southern corner of the dam on the stream, as an added point of reference. This is near enough 90 metres from the rails, and 380 metres from the final location of the iryo's rear carriage as per the photos. That can be located from the pedestrian underpass (between the 'platforms') visible in the photos.
Screenshot of OpenStyreetMap in edit mode, showing the final location of the front bogie of the rear carriage of the iryo that derailed at Adamuz on 18/01/2026
 
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