Ballot Drop Off Sites for August 11, 2020, Special Election
Yes, you can still drop off your ballot at the library, and lots of other drop off sites.
Visit the Multnomah County Elections website for the list of all August 11, 2020, Special Election ballot drop off sites, including a list of which Multnomah County Library branches (and the Central Library, downtown) are open for business and accepting ballots.
By the way, if you want to look at some May 2020 Primary Election voter statistics, visit the Oregon Secretary of State Elections website for lots of reports, including this one: