A tanker truck crash on the Alaskan Way Viaduct spilled thousands of gallons of gasoline and set off a massive fire in downtown Seattle 50 years ago today, according to historylink.org.
In the early hours of December 4, 1975, a Union Oil tanker truck lost control while heading south on the viaduct near South Washington Street, across from Pier 48.
The rig jackknifed, causing its trailer — filled with 3,700 gallons of gasoline — to separate, overturn, and rupture…