WWII Tank Crossing Finally Removed—40 Miles of River Now Flows Free

Sometimes the best environmental news involves undoing the past. Last October, workers in North Macedonia completed what may be Europe’s most ambitious river restoration project: removing an 80-year-old concrete obstruction from the Pchinja River that had been blocking fish migration and strangling water quality for over four decades.

Here’s the setup: during World War II, a massive mound of concrete was poured across the Pchinja River to allow battle tanks to cross. The barrier sat there for eight decades, turning 40-plus miles of what should have been flowing water into a stagnant zone where oxygen depleted, pollutants accumulated, and native fish couldn’t swim upstream. Located in the Northeast corner of the country near Kumanovo, North Macedonia’s second largest city, the concrete scar had become an invisible ecological wall.

Enter Eco Awareness, a local environmental group that recognized what needed to happen. With support from the Kumanovo Municipality and national environmental authorities, they launched the removal project and succeeded in freeing the river. According to Ana Čolović Lesoska from Eco-awareness, this isn’t just a North Macedonian win—it’s the largest obstacle removed on any European river to date.

What makes this story even more compelling? Public support is overwhelming. A public opinion poll conducted by the Brima agency in October 2025 showed that 91% of the population supports the removal of unnecessary river barriers, signaling real environmental consciousness across the country. And momentum is building: Eco Awareness has identified some 45 dams and other obstructions on the Pchinja that are no longer fit for purpose and should probably come down next.

The Pchinja River now flows freely once again toward the larger river systems downhill, eventually meeting the Vardar River in Greece. It’s part of a broader European movement—some 525 derelict and redundant dams have been demolished over the past few decades—but this one carries special weight. Under the banner of the Open Rivers Program supported by the EU, Eco Awareness aims to remove every last unnecessary barrier and return the Pchinja to its wild, free-flowing state. That’s not just restoration. That’s redemption.