There are more than 200 bridges in Washington that could collapse if a key part fails. They’re classified as being fracture-critical, just like the Interstate 5 span that plummeted into the Skagit River in May after it was hit by an oversized load. Out of those fracture-critical bridges, at least three others have been struck multiple times in the past five years. Experts say repeated bridge strikes can potentially cause catastrophic problems.
Last month's I-5 Skagit River bridge collapse is just one of a number of major bridge failures in Washington's history. Washington is home to four of the nation's 11 floating bridges, two of which have sunk. Here is a look at the state's highest-profile bridge failures.
There's a lot of water in Washington state, and therefore a lot of bridges. Transportation for America put together the numbers of structurally deficient bridges by state county and compared Washington to the rest of the country. There's good news: Washington is ranked 46 out of 51 states (including Washington, D.C.) in structurally deficient bridges. Pennsylvania performed the worst with 24.5 percent of bridges considered deficient.
Visualizing the numbers Did you know that in another ten years, one in four bridges will be 65 years old or older? And today, almost 50 percent of bridges of that age are structurally deficient? In the minute it'll take you to view this full infographic with more facts like that, another 180,000 trips will be taken on deficient bridges.
Federal investigators released a preliminary report Tuesday about last month’s I-5 bridge collapse over the Skagit River. The report says the driver of the truck that struck the bridge before it fell had moved over closer to the edge of the bridge because of a passing truck.
Thursday night's bridge collapse has put a spotlight on truckers who carry oversized loads. Preliminary reports suggest that a truck that clipped a bridge support is what caused the spectacular collapse.