Repair work on a roundabout is expected to cause traffic delays in Aptos beginning tomorrow. Crews will be working on the Rio Del Mar Mini-Roundabout between 8:30 a.m. and 4:30 p.m. Monday through Friday. Rio Del Mar Boulevard will be closed at the Esplanade. All Beach Drive traffic will be detoured to Aptos Beach Drive. Motorists have been asked to avoid the area if possible or be prepared for delays. The project is expected to be completed by mid-December.