Is there a parking lot to park in?

120 spaces in the Library’s underground garage and 20 surface lot spaces are available for visits of four hours or less. Spaces are metered from 10:00 am to 8:00 pm., seven days a week. Parking is free after 8 p.m. Pay right at your space via the parking app, your credit card, or with coins. More information at http://ccclib.org/locations/walnutcreek.html

Yes , but do you need pay.

Yes