A memorial plaque was installed on the New Hampshire Avenue bridge in 2012.

Exactly six years after the collision of two Red Line trains killed nine people, a park and memorial honoring their memory will open today.

June 22, 2009 became the deadliest day in Metro’s history after the crash occurred between the Takoma and Fort Totten stations. Legacy Memorial Park, located at the corner of 5720 New Hampshire Ave. NE, is intended to pay tribute to those who lost their lives as well as the first responders and others whose lives were altered by the accident.

Nine individual sculptures and a memorial wall with an inscription have been placed at the site. “Legacy Memorial Park allows for meditation, remembrance, reflection, hope and renewal for all affected by the tragedy,” a press release reads.

City Administrator Rashad M. Young, Congresswoman Eleanor Holmes Norton, and the park’s architects are among those who will be in attendance at the 11 a.m. opening.

The National Transportation Safety Board determined the cause was the failure of track circuit modules, which caused the automatic train control system to lose detection of one train. Train operators manually operated the Red Line for more than five years, only returning to automatic control in April of this year.