Come to the Annual Spring Cleanup on May 4! Email Come to the City of Lincoln’s Annual Spring Cleanup! You can drop off appliances, mattresses, furniture, electronics and more. The Cleanup is on Saturday, May 4 from 7am – 3pm, located at the West side of the Lincoln Regional Airport off of Airport Road. Questions? Call (916) 434-2450. Find out more, including a list of what items are accepted.