MINNEAPOLIS (AP) - The Minneapolis city attorney wants to sue the architectural firm that designed the memorial to the victims of the 2007 interstate bridge collapse.

City Attorney Susan Segal says there are defects with the $1 million memorial in downtown Minneapolis which was completed in 2011.The memorial has 13 steel beams and glass columns engraved with the names of the 13 people killed in the collapse.

Segal says the cascading water on a wall inscribed with the names of the survivors has been turned off for several years because the water is not being recycled. And that has caused erosion to the bluff behind the memorial.

Segal tells reports she will ask the City Council Friday for permission to file a lawsuit. The designer, Oslund & Associates, did not immediately return a call seeking comment.