The Principal Financial Group has announced that, after eight years of improvements, its riverwalk project in downtown Des Moines is officially completed.

Originally launched in 2004 as a gift to the city of Des Moines to celebrate the financial services company’s 125th anniversary, the riverwalk along the Des Moines River downtown, features pedestrian bridges, public spaces, world-class art and links to nearly 300 miles of paved recreational trails in Central Iowa.

Among the improvements added in the past eight years:

“Our long-term vision for this project was to improve quality of life. From entertainment to activities, The Principal Riverwalk delivers the amenities to enrich lifestyles throughout all four seasons,” said Mary O’Keefe, senior vice president and chief marketing officer at Principal.