A delivery truck apparently backed into the northwest corner of Kettleson Memorial Library on Monday, splintering part of the roof. (KCAW photo/Rachel Waldholz)

A delivery truck apparently backed into the northwest corner of Kettleson Memorial Library on Monday, splintering part of the roof. (KCAW photo/Rachel Waldholz)

A delivery truck backed into Kettleson Memorial Library on Monday, damaging the building’s overhanging roof, but apparently doing no serious structural harm.

As of Tuesday afternoon, the city hadn't yet put a dollar amount on the damage, but said no serious structural harm had been done. (KCAW photo/Rachel Waldholz)

As of Tuesday afternoon, the city hadn’t yet put a dollar amount on the damage, but said no serious structural harm had been done. (KCAW photo/Rachel Waldholz)

The library was closed for the Presidents’ Day holiday when the accident occurred. Librarian Joanna Perensovich noticed the damage when she went to empty the book drop and found debris on the ground near the library’s northwest corner, facing Harbor Drive. The roof corner had splintered from the impact.

The truck was making a delivery to a business next door, police said. The city has not yet calculated a dollar amount for the damage.