Historic Resource Survey Reports (HRSR) have been added to this feature layer in the form of the Area of Potential Effects (APE) alongside historic properties of Texas that include historic districts and properties (Points, Lines, and Polygons).
This feature layer includes Historic Resource Survey Reports (HRSR) that are mapped for each project's Area of Potential Effect (APE). Historic Districts (Polygons) and Properties (Points, Lines, & Polygons) in Texas have also been included to show the proximity of projects to existing historic resources throughout Texas.  These historic resources include National Historic Landmarks (NHL), Listed and Eligible properties on the National Register of Historic Places (NRHP), Texas landmarks such as State Antiquities Landmarks (SAL) and Recorded Texas Historic Landmarks (RTHL).  Whenever possible, contributing and locally designated resources have also been included. These features are compiled from the National Park Service, the Texas Historic Commission, and various TxDOT and consultant surveys & reports.  The APEs are determined by industry standards on survey requirements for each given situation.  The map and map elements are updated approximately once a month to reflect any changes.  Update Frequency: As Needed Sources: Historic Resource Survey Reports (HRSR)Security Level: Public
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