Modesto JC has a 29 meter radius for lane 1, UCLA has a 50.8 meter radius for lane 9. Lane 1 at Jesuit High School has approximately the same radius as lane 5 at Modesto JC. Lane 4 at Hughes Stadium fits inside lane 1 at CSUS. Folsom High School has the largest radius of any track in the Sacramento area.
All measurements but one are from Google Earth's measuring tool and can only be regarded as approximations; Folsom High School's track was tape measured.
Track photos: