Advance and Directional Signing Standards

Advance and directional historical marker guide signs provide motorists guidance to historical marker sites on TxDOT’s conventional highway system outside of city limits. Only historical markers within the right-of-way of an on-system conventional highway are eligible to be signed for by TxDOT.
All historical markers installed after November 1, 1962, should have advance guide and directional signing. As explained earlier, all new or replaced historical-marker guide signs must display the Atlas marker number (see following subsection on “Advance and Directional Sign Details”).
Placement.
Generally the advance guide sign is placed approximately one mile before the directional sign. If the roadway is one lane in each direction and undivided, then at the engineer’s discretion, the directional signs at the marker may be mounted on one side of the road, back-to-back.
Markers Within Cities.
Although TxDOT does not sign for individual historical markers within incorporated cities or those not on TxDOT right-of-way, the HISTORICAL MARKERS IN CITY signs, which are furnished by THC, are used to alert motorists that a city has historical markers within its city limits. This sign should be incorporated into the City Pride Sign Program (see Chapter 8, Section 7, for information).
If a city incorporates an existing historical marker into its city limits, which is on one of TxDOT’s conventional highways, the directional and advance historical marker guide signs should be removed at the end of their useful life. TRF should be notified (including a brief description of the historical marker content along with the marker number) by memorandum or e-mail when these signs are removed. TRF will notify TRV so that TRV can update their booklet.