If maintenance or unexpected inclement weather occurs, please contact the Turf Hotline at 925-373-5702 after 8:00 a.m. Updates are made daily to each field. If a field has a CLOSED status, then the field is not in usable condition. If a field has an OPEN status, the field is available to use. During inclement weather, if it starts to rain before or during field use, the fields will be CLOSED and use will be canceled.