Section 15: Reference Markers and MilepostsAnchor: #i1009846
The Highway Reference Marker Location System has replaced the Milepost Marker System on all highways except the interstates. For installation and numbering system requirements for reference markers, see the Texas Reference Marker System User’s Manual. For specifications for reference markers (D10 series), see the Traffic Control Standard Plan Sheets.
Reference markers should be accurately maintained so that reliable data can be gathered.Anchor: #i1009865
The Milepost Marker System remains in use on interstate highways (using the D10 series), because it is the national standard for the Interstate Highway System. Milepost markers, like reference markers, should be accurately maintained. The TMUTCD describes the applicable standards.