Washington Metro • WMATA on Instagram: "We’re pulling out all the stops to get back to normal service! ❄️🔥 🐍 Extremely cold temperatures cause rails to contract, increasing stress in the steel and making them more susceptible to fractures. When a cracked rail was identified at Franconia overnight, crews also had to contend with ice packed tightly around the rail and continued frigid conditions. By using a “fire snake,” crews were able to safely warm the rail, melt surrounding ice
0:30
Washington Metro • WMATA on Instagram: "We’re pulling out all the stops to get back to normal service! ❄️🔥 🐍 Extremely cold temperatures cause rails to contract, increasing stress in the steel and making them more susceptible to fractures. When a cracked rail was identified at Franconia overnight, crews also had to contend with ice packed tightly around the rail and continued frigid conditions. By using a “fire snake,” crews were able to safely warm the rail, melt surrounding ice
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