 Except where <unk> with a letter , <unk> were measured on the road as it was when the route was established , based on the alignment that existed at the time , and do not necessarily reflect current <unk> . R reflects a realignment in the route since then , M indicates a second realignment , L refers an overlap due to a correction or change , and T indicates <unk> classified as temporary ( for a full list of <unk> , see the list of <unk> definitions ) . <unk> that remain <unk> or have been relinquished to local control may be omitted . The entire route is in Riverside County . 
