Much like other cities and states, D.C. has its share of aging and structurally deficient bridges. But this weekend the Frederick Douglass Memorial Bridge—which is a swing bridge whose middle section moves to the side in order to allow ships to pass through—really showed its age when it became stuck in the open position. NBC4 has the details:

D.C. Police tell News4 that crews were doing routine testing on the bridge in the early hours of Sunday morning. The work was supposed to be finished by 9 a.m. However, police say that due to technical issues that came up during the testing, the bridge became stuck in the open position.

Traffic for the bridge was diverted down M Street to the 11th Street Bridge. Inbound traffic was sent back on to Interstate 295 and Martin Luther King Avenue. The issue was eventually resolved and the bridge was re-opened to traffic shortly after 1 p.m.

The bridge is 63 years old, and D.C. officials have proposed spending upwards of $900 million to replace it. City officials are still negotiating with the federal government in hopes of not having to make the new bridge a swing bridge like the existing span; large ships rarely travel to and from the Navy Yard as they used to when the bridge was first built.

More broadly, D.C. will spend $110 million shoring up a number of structurally deficient bridges in the city over the few years, including the Key Bridge.