Tajikistan’s “Tunnel of Death” Included 3 Miles of Darkness, Floodwater and Toxic Exhaust

High in the mountains of Tajikistan, one of the country’s most important highways disappears directly into a five-kilometer hole beneath the Anzob Pass. Today it is officially called the Istiqlol Tunnel, or Independence Tunnel, and it forms a critical road connection between the capital, Dushanbe, and northern Tajikistan. For years, however, travelers knew it by a much darker name: the Tunnel of Death. The tunnel is approximately 5,040 meters, or 3.1 miles, long and cuts through the mountains about 50 miles northwest of Dushanbe. It sits at an elevation of roughly 2,700 meters, or nearly 9,000 feet. Building it was supposed to eliminate one of the most dangerous parts of the journey between northern and southern Tajikistan, where the old road climbed over the Anzob Pass and was regularly threatened by heavy snow and deadly avalanches. Instead, when the tunnel opened to traffic in 2006, it was not truly finished. Drivers entered a passage that lacked many of the basic systems expected inside a modern road tunnel. There was little or no reliable lighting, no proper ventilation, unfinished road surfaces, severe water leakage and drainage problems. Exhaust from cars and diesel trucks accumulated inside the enclosed mountain passage, sometimes becoming so thick that headlights struggled to penetrate the haze. Eurasianet described conditions shortly after opening as clouds of exhaust, flowing water and traffic jams forming deep inside a tunnel with no ventilation. Water was one of the worst problems. Streams leaked through the surrounding rock and crossed the roadway, while large pools formed in low areas. In some sections, drivers faced potholes hidden beneath muddy water, creating the possibility of damaging a vehicle or becoming stranded inside. Accounts from travelers described sections that resembled underground ponds rather than a national highway. The combination of darkness, exhaust and water created an especially dangerous situation when traffic stopped. A moving vehicle could pass through the tunnel relatively quickly, but a crash, broken-down truck or traffic jam could leave motorists sitting inside concentrated exhaust fumes with nowhere to escape. The narrow roadway also forced large trucks and passenger cars to maneuver extremely close to one another. Photographs taken inside the tunnel before major repairs show just how primitive conditions could be. Headlights and taillights provided much of the visible illumination. Road surfaces were uneven and wet, and the tunnel walls appeared unfinished in places. Trucks frequently dominated the narrow roadway, leaving little room for opposing vehicles. The tunnel’s reputation became so bad that international travelers began referring to it as one of the most dangerous tunnels in the world. The nickname “Tunnel of Death” spread through travel reports and media coverage, even though it was never the tunnel’s official name. The irony is that the project was meant to save lives. Before the tunnel existed, traffic between Dushanbe and northern Tajikistan had to cross the Anzob Pass. The mountain road could become impassable in winter and was exposed to avalanches. In October 1997, a massive avalanche in the area reportedly killed 46 people after burying vehicles on the pass. Opening a tunnel beneath the mountain promised a year-round route that would avoid those conditions. Construction had a long and difficult history. Work began during the Soviet period but stalled after only a small section had been excavated. After Tajikistan became independent, Iran became heavily involved in completing the project. Iranian contractors resumed construction, and the tunnel was finally opened to traffic in 2006. The problem was that political and transportation pressure pushed the tunnel into service before all of the supporting infrastructure was complete. Tajikistan badly needed a reliable north-south connection. The alternative mountain route was dangerous and seasonal, while some other routes historically required travelers to pass through neighboring Uzbekistan. So vehicles were allowed inside despite the unfinished conditions. Travelers described a surreal driving experience. Drivers entered the mountain and almost immediately disappeared into darkness. Road markings were difficult or impossible to see. Cars sometimes drifted toward the middle of the passage to avoid potholes and standing water, while approaching vehicles appeared suddenly through exhaust haze. Large trucks made the journey even more intimidating. Heavy commercial traffic depended on the route, and drivers sometimes had to squeeze past each other in conditions where lane boundaries barely existed. The tunnel also contained two parallel passages, although the project was not completed in the form originally envisioned. For years, one bore carried most of the usable road traffic while other areas remained associated with construction and unfinished infrastructure. By 2014, Tajikistan and Iran had reached another agreement to finally complete major unfinished work. The tunnel was temporarily closed in 2015 while crews addressed water leakage, drainage, the roadway and lighting. It reopened to traffic in September of that year after significant improvements, and further work continued afterward. The changes were substantial. Concrete and asphalt replaced some of the worst roadway surfaces. Drainage improvements reduced the amount of standing water. Lighting was installed through much of the tunnel, making the journey dramatically different from the almost total darkness travelers had once experienced. Later repairs also targeted potholes and additional drainage problems. The project was formally celebrated as completed in the following years, and the modern tunnel is far safer and more usable than the version that created its infamous reputation. That means many descriptions of the Tunnel of Death found online today are partly historical. A traveler entering the Anzob Tunnel now should not expect exactly the same nightmare documented during the late 2000s and early 2010s. Much of the road has been improved, and lighting now exists through most of the passage. The tunnel still has limitations, and reports have continued to note issues with ventilation and maintenance, but it is no longer simply five kilometers of unpaved darkness and deep flooded potholes. Its old reputation remains because the original conditions were so extreme. The tunnel is also enormously important to Tajikistan. It shortened the trip between Dushanbe and the northern city of Khujand by several hours and helped create a year-round internal transportation link through some of Central Asia’s most difficult terrain. Government descriptions of the country’s transportation development regularly identify Istiqlol as one of the major projects that helped connect northern and southern Tajikistan. :chatgpt-content-reference{index="0"} That makes the story of the Anzob Tunnel more complicated than simply calling it a dangerous road. It was built because the route above it was dangerous too. The old mountain pass exposed travelers to snow, avalanches and seasonal closures. The tunnel solved one problem while initially creating another underground. In its worst years, entering it meant committing to more than three miles inside a mountain with poor lighting, inadequate ventilation, water pouring across the road and trucks filling the passage with diesel exhaust. If traffic stopped, there was no simple alternate exit. Those conditions gave a national infrastructure project one of the most ominous nicknames imaginable. Today, the sign above the entrance identifies it as the Istiqlol Tunnel, a name connected to Tajikistan’s independence. Its repaired roadway carries ordinary traffic beneath the mountains every day. But older photographs still show why an entire generation of drivers called the same place something else. The Tunnel of Death.