File No.: Battle Study # 16

Title: Location of the German detonation device for the destruction of the Waal River Bridge at Nijmegen on the 20th of September 1944.
Investigation made at: Nijmegen and Lent, The Netherlands.

Period Covered: September 20th, 1944
Date:  October - November 2008
Case Classification: Description of Battlefield / Combat Scene
Case Status: Case Closed



The scene in the 1977 war movie "A Bridge Too Far" where "General Ludwig" (an assumed name for General Heinz Harmel) gives the order to blow the bridge across the Waal River at Nijmegen, The Netherlands, at the very moment Allied tanks roll across it, has become a classic. We captured the essence of this spine-chilling scene in the above animation. For the whole scene, click here!
"A Bridge Too Far" is based on author Cornelius Ryan's book with that same title. The scene at the Nijmegen bridge is the Hollywood depiction of an event that actually took place on the 20th of September 1944. Much has been written about the reason or the cause for the Nijmegen bridge to remain intact. In this Battle Study we investigate only a limited aspect of the events near the bridge. Where were the general and his detonator-operator when he ordered the bridge to be blown?

The capture of the bridge at Nijmegen was part of an Allied operation named Market Garden. This operation was already in its fourth day and the plan dictated this river crossing to be in Allied hands at least two days earlier. On D+3 of the operation, American paratroopers of the 504th Parachute Infantry Regiment paddled across the Waal River, in small fabric-walled boots, originally designed for bridging engineer units. Once across the river, they attacked the bridge from its Northern ramp. Meanwhile, their sister-Regiment, the 505th, fought its was through the city of Nijmegen, to capture the bridge from it Southern approach road. 

German SS General Heinz Harmel of the 10th SS Armored "Frundsberg" Division had been given the task to attack American paratroopers in the Nijmegen area. In a very early stage of Operation Market Garden, the Germans understood the intention of the plan. The saw that the city of Arnhem and its bridge across the Rhine River was the main objective. The last large river span, before reaching Arnhem, was the one at Nijmegen. It was for this reason that Harmel asked his superior, Field-Marshall Model, for permission to destroy the Nijmegen bridge in the event the Allies succeeded in capturing it. 

Model, however, refused this order and told Harmel to hold the bridge at all cost.

The Nijmegen bridge had, in the previous years of German occupation of the Dutch city of Nijmegen, been prepared for demolition. Blocks of explosive material, custom-shaped to fit inside the steel girders of the bridge, had been mounted on critical sections of the bridge. The detonation device had been placed on the Northern bank of the Waal river. The reason for this, was that the Germans expected attacks on the bridge to come from the South.

The order to blow the bridge
I Cornelius Ryan's book A Bridge Too Far, General Harmel recalled:

'What must be done first? What is the most urgent, most important action to take? It all came down to the bridges' He had not contacted Bittrich 'beforehand to warn him that I might have to demolish the highway crossing. I presumed that it was Bittrich who had ordered the bridges readied for demolition.' So, Harmel reasoned, in spite of Model's order, 'if Bittrich had been in my shoes, he would have blown the main bridge. In my opinion, Model's order was now automatically canceled anyway.' At any moment he expected tanks to appear on the highway bridge.'

A few moments later he ordered the bridge to be blown, only to witness the detonating system to malfunction and the road bridge to remain intact.

Cause of the detonator to malfunction

After World War Two, in Holland a nationwide discussion developed about why the Nijmegen bridge was not destroyed by the Germans.

Wire sabotaged by Dutch resistance fighter
A Dutch government Enquiry Committee was formed to investigate the claim that a local Nijmegen resistance fighter, named Jan van Hoof had cut the wires and by doing so, made it impossible for the Germans to blow it up.
Volumes have been written about the role of Jan van Hoof and the Enquiry Committee's 1951 report is a large one.
As stated earlier, this Battle Study will not focus on this aspect. We refer our viewers to Dutch official World War Two historian Dr. Lou de Jong's summary of the Committee's findings.

Monument to Jan van Hoof on the Waal River Bridge, Nijmegen

Monument to Jan van Hoof on Joris Ivens Plein, Nijmegen
"On this spot Jan van Hoof, savior of the Waal River Bridge, fell, September 19th, 1944"


Detonator wire cut by artillery fire
Very interesting is Cornelius Ryan's footnote:
"This is the first account of the German attempt to destroy the Nijmegen highway bridge. General Harmel had never before given an interview to anyone on the subject."

This is a remarkable statement because Harmel had written his account of his 9th SS Armored Division in the Nijmegen area, which was published in the September 1956 issue of Der Freiwillige; a not uncontroversial magazine for veterans of former German SS-units:

(click on the thumbnails for the full-size magazine pages)
(magazine article through Bundesarchiv, Militärarchiv, Germany)

In this light, the following segment is very interesting:

Robert J. Kershaw translated this segment in his book "It never snows in September, The German view of MARKET-GARDEN and the Battle of Arnhem, September 1944", as follows:
'I now gave the order, on my own responsibility, to blow the road bridge, over which further tanks continued to advance . It failed to go up – probably because the initiation cable had been cut by artillery fire'.


Inspection of demolition charges by Royal Engineers

Adding to the confusion that still remains in relation to what prevented the bridge from being destroyed, is the account of Lt. Col. A.G.C Jones (a 1st Lieutenant in 1944), troop commander of No. 14 Field Squadron, Royal Engineers.
In September 1967, Jones was interviewed for Cornelius Ryan's book A Bridge Too Far.
Jones' job on the 20th was to make sure that all demolition charges were destroyed. As this diagram from his hand shows, Jones was right behind the attacking tanks and should therefore be considered as the first expert on the scene to inspect the explosive devices:


(click on the image to enlarge)


In his interview he stated this about the system of explosive devices that he discovered on
and around Nijmegen bridge:



Jones is even more convincing in this written statement:

(click on the image to enlarge)


Location of the detonator
During the course of the investigation of the Dutch Enquiry Committee, no relevant German sources where consulted or interviewed. If General Harmel would have told his story to the Committee, as he told it to Cornelius Ryan, the conclusion that it was Field Marshall Model's order that saved the Nijmegen bridge, would have never found its way into the official report.


We will now focus on the exact location where General Harmel watched the British tanks cross the Waal River road bridge and ordered the operating engineer to crank the handle of the detonating device.


Location in movie "A Bridge Too Far"

A Bridge Too Far was filmed on many historical locations in The Netherlands. Most of the scenes of the Nijmegen bridge were 'shot' on and around the original bridge. In the movie, General Harmel's bunker is located on the South-East bank of the Waal river, somewhere at the site where paratroopers of the US 504th Regiment started their crossing on the 20th of September:


Location, according to Dutch historian Karel Margry
In his richly illustrated, 2 volume book "Market Garden, Then & Now", Dutch historian Karel Margry published this about the location of the detonator and of General Harmel's observation point:

(click on the thumbnail for the full-size photograph and caption)


We visited this location and took the following photographs:

(click on the thumbnails to enlarge)

We found this location unlikely for the spot where Harmel watched for the right moment to gave the order for the demolition of the bridge.

Harmel's account in Ryan's book A Bridge Too Far gives several clues:

"Binoculars to his eyes, he stood on the roof of a bunker near the village of Lent. From this position on the northern bank of the Waal barely a mile from the main Nijmegen highway bridge, he could see smoke and haze off to his right and hear the crash of battle."


The detonator for the highway bridge was hidden in a garden near the bunker at Lent, and a man was stationed there awaiting orders to press the plunger."


Standing next to the engineer by the detonator box, Harmel scanned the crossing. At first he could detect no movement. Then suddenly he saw "a single tank reach the center, then a second behind and to its right." To the engineer he said, "Get ready." Two more tanks appeared in view, and Harmel waited for the line to reach the exact middle before giving the order. He shouted, "Let it blow!" The engineer jammed the plunger down. Nothing happened. The British tanks continued to advance. Harmel yelled, "Again!" Once more the engineer slammed down the detonator handle, but again the huge explosions that Harmel had expected failed to occur. "I was waiting to see the bridge collapse and the tanks plunge into the river," he recalled. "Instead, they moved forward relentlessly, getting bigger and bigger, closer and
closer." He yelled to his anxious staff, "My God, they'll be here in two minutes!"

This account is based on the interviews that Ryan had with Harmel on November 2nd and 22nd and on December 6th, 1967. A transcript of these interviews is kept at the University of Ohio in, Athens, Ohio.

This is the most important section from that interview, provided to us from the curator of the Ryan Collection, Mr. Douglas McCabe:

From: Ryan Collection Box 130:12

I had come alone, driven there by my driver Hinterholzer.
It was on the 20th, about 18:30 when I first received a report that the British tanks had reached the southern bank of the Waal and that they were starting over the bridge. Almost simultaneously the message reporting this heavy smoke screen arrived. Nothing could be seen but it was obvious that the Americans were making an attempt to cross the river. Then I made up my mind to blow the bridge as I told you.

I was near Lent and I had my driver drive me to the edge of Lent. I crossed the town on foot till I reached the eastern edge. I knew that the engineers who had come on the evening of the 17th were there. I presumed it was they who had prepared the bridge for blowing. The detonator box was hidden in a garden, well camouflaged. A man was stationed there in case the order to blow the bridge should be given. I stood beside him and watched the tanks advancing on the bridge. I was waiting for them to reach the middle of the bridge before giving the order. Then I gave it: “O.K. Let it blow.” He pressed the plunger and nothing happened. The British tanks kept advancing. It took me a couple of seconds to realize that the charge had not gone off. Then I thought: “My God! They’ll be here in two minutes.” Then my thoughts began darting about madly, trying to decide what to do next. I could no longer afford to worry about the bridge. It was too late.

It was quite a shock I can tell you to expect to see one thing, and then see another. I expected to see the bridge collapse and the tanks to be plunged into the river. But instead I could see the tanks move forward relentlessly. They got bigger and bigger, came closer and closer. Then we dove for cover behind a bush.
When the bridge did not explode we took cover. We knew that the British could probably see us from their tanks. They might start shooting from the tanks with their machine guns. Also the infantery
(sic) was bound to be coming behind them. We could expect to be involved in close combat within a very few minutes.
After I started things moving I went back to my car and drove to Bemmel.

Where Ryan got his knowledge about Harmel standing on the roof of a casemate can not be found in the transcript of the interview. However, the last part makes it very unlikely that the case mate in the photograph in Margry's book was the one that Harmel stood on to observe the Nijmegen bridge. From the North ramp of the bridge any vehicle - tank or soft skin - would be next to this casemate in mere seconds. We took these photographs standing next to the casemate, looking toward the bridge. We only used a built-in 10x zoom lens:

(click on the thumbnails to enlarge)

Location, according to

To analyze the phrase "The detonator for the highway bridge was hidden in a garden near the bunker at Lent'" we scouted the area around the casemate for a garden of clues to a cleared one. From our position on the North ramp we suddenly became aware of another casemate close to our position:



We walked toward this site and found this bunker on the North bank a few hundred yards to the West:


(click on the thumbnails to enlarge)

Our investigators interviewed the property owner. He explained us that today the casemate belongs to a private owner and although it is situated within his land, he has to grand the owner passage to it. Apart from any legal ownership issues we could definitely see that from the garden of the house, one has a clear view of the traffic on the road bridge.

(click on the thumbnails to enlarge)


This graphic shows the positions of both bunkers with yellow drawing pins:

(c) Google Earth 2008

On this photograph from 1940 we can see the Dutch casemate on the North bank of the Waal River:

The casemate was designed to protect the bridge but it could not prevent its capture by the Germans in their 1940 Blitzkrieg war. Here we see the casemate on a photograph taken by mr. J.J. Overwater in April of 1941:


Also, a diagram, accompanying an After Action Report of the 82nd Airborne Division about the events around Nijmegen Bridge on the 20th of September 1944, indicates heavy fire coming from the location of the Bemmelse Dijk casemate. It is likely that the detonator was in close proximity of the artillery indicated below:




From the details in his interview with Cornelius Ryan for A Bridge Too Far, it is our theory that General Harmel observed the road bridge at Nijmegen by elements of the Grenadier Guards from the casemate on the north bank of the Waal river that was, and still is, located in the garden of the house on No.5 Bemmelse Dijk in Lent, Gelderland province, The Netherlands. It was from the garden around this casemate, which has the designation "LENT B 676" in the Dutch Real Estate Registry ("Kadaster") that he gave the command to operate the detonator connected to the explosive charges under the bridge..




1 2 3 4


1 Looking north across the Waal River and the Nijmegen road bridge. The location is the same as in the 1940 black and white photograph, taken from the Belvedere tower. The piece of artillery is a German PAK antitank gun left behind after the battle for the southern approach ramp of the bridge.

2 The large river span at Nijmegen was built in the 1930's and remains unchanged today.

3 The road bridge and the northern river bank, known as the Bemmelse Dijk.

4 The monument for Jan van Hoof and the river levy. Through this grassy area the detonation lines led to the casemate behind the river dyke on the top right of the photograph.               

May 25th 2014 UPDATE
: Because of a gigantic Dutch government water management named the "Room for the River Program" the terrain behind the river bank at Lent with both the casemates described here, has changed dramatically. Purpose of the program is to give the Waal River near Nijmegen more room to be able to manage higher water levels. At many locations, measures will be taken that give the river space to flood safely. For the location at Lent it meant that the house and the garden near the casemate were flattened. The casemate itself will be preserved as a landmark. As per the writing of this update, 24 MAY 2014, the area around the casemate is off limits and dangerous due to quick sand.

(click to enlarge)

 Fortunately we had sneaked into the area a few weeks earlier and were able to document the 1936 concrete defense structure from close up:

(click on the thumbnails to enlarge)

May 23rd 2018 UPDATE: Earlier this year we found the Waal river project on the northern bank at Nijmegen in its finished stage. The Dutch casemate is still on its location where it stands since 1936 but the surrounding area has changed into a more coastal look:

(click on the thumbnails to enlarge)

February 7th 2022 UPDATE: On 30JAN2022 we visited the casemate again to find it behind a small fence and with an information sign about its history which can also be read online. About the casemate's role in World War Two, the information is brief and it is only mentioned that "From the casemates in Lent, the railway bridge and traffic bridge could be detonated." Note also that more and more graffiti are on the outside walls today:

(click on the thumbnails to enlarge)

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