A general view of the 'Pont des Trous' medieval bridge being demolished in Tournai, where the Scheldt river will be enlarged to allow larger ships to pass, on August 9, 2019. (AFP/Philippe Huguen)
The demolition of a historic bridge across a Belgian river is triggering fears among residents of Tournai that the city symbol will be disfigured permanently when a new span replaces it.
The authorities insist they chose the most cost-effective option to build a new crossing that will allow larger barges to sail underneath while preserving the character of the medieval monument, known locally as the "bridge of holes".
Workers pressed ahead on Friday with demolishing the arches which were rebuilt after World War II when British troops blew up the original span, along with Tournai's other bridges, to slow the Nazi invasion of Belgium in May 1940.
Charles Deligne, curator of the city's military museum, confessed he felt "some anger" after the authorities rejected plans for a bypass canal and began demolishing the bridge a week ago.
"I am also enormously disappointed because we missed a great opportunity," Deligne said, wistfully recalling the beauty of the bridge that appears in a pre-war photograph in his museum.
"The bypass option would have been aesthetically a very beautiful option," he added.
Deligne warned the middle of the three arches in the new version would be so high as to vastly alter the medieval style that was largely retained in the post-war reconstruction.
The two fortified stone towers on either side of the river are more or less the same as they were when first built in the 14th century.
Christophe Van Muysen, the project's inspector for the French-speaking Wallonia region, played down the way the bridge over the Scheldt river will look in the future.
"It will have the same medieval appearance, but the arch will be bigger geometrically," Van Muysen told AFP as a crane's maw and drill demolished the arches, debris splashing into the water.
He said the multi-million euro demolition and reconstruction project will allow far larger barges to navigate the Scheldt from the northern Belgian port of Antwerp to the Seine River basin in France.
Van Muysen added that the project, partly financed by the European Union, also aims indirectly to reduce the number of trucks plying Europe's clogged highways and cut greenhouse gas emissions.
He said the bypass canal would have been prohibitively expensive and required the expropriation of 30 properties.
Tournai resident Philippe Bobin told AFP he was shocked to see such an important monument, one he has known for four decades, being partly demolished.
"It's one of the symbols of Tournai," he said.
Built when Tournai was loyal to King Philip VI of France, Deligne said, the monument is a rare existing example of defences where a grill dropped into a river to block enemy boats.
Completed in 1329, it helped defend the city against the army of King Edward III of England. Tournai fell briefly under the rule of Henry VII less than two centuries later.
Deligne said residents felt no bitterness toward the British troops for blowing up the bridge, adding it paled in comparison to the destruction the Nazis wrought.
He added that the British troops retreated within the week to the French port of Dunkirk, joining the historic evacuation back to Britain.