Street Segments

ELEVATION.contours_2021

Summary
The Texas Natural Resources Information System (TNRIS) contracted Sanborn to fly LiDAR in March of 2021. TNRIS then created the contours in the Spring of 2022 using Global Mapper.

Description
This layer represents contour elevation lines as of the March 2021. The contours are derived from LiDAR data, collected in the March 2021. Contours were generated using Global Mapper, sample spacing used to create the contours is consistent with the Nominal Point Spacing (NPS), of the source LiDAR dataset from which it was derived. Lines were automatically smoothed while being generated by Global Mapper.

Important: The LiDAR data was created using UTM zone 14N and was projected in Central Texas State Plane (NAD 83) FIPS 4203.

For contour type:
1 = Minor Contour
2 = Intermediate Contour
3 = Major Contour

Credits
The Texas Natural Resources Information System (TNRIS)

Use limitations
This map has been produced by the City of Austin for the cartographic purposes. No warranty is made by the City or TNRIS regarding its accuracy or completeness.

The City of Austin Community Registry is an important communications tool for neighborhoods and others to be notified of issues relating to their area. Registration provides a means for notification of upcoming zoning issues.Boundaries for community registry are not standardized and can take the geography desired by the registrant.

Manmade hydrography feature class is created to assist in City of Austin planning activities.

Polygon layer delineating the area covered by major lakes within Travis County Texas.

Data.AustinTexas.gov is the official portal for open data from the City of Austin (COA). The City of Austin’s GIS/Map Downloads page is the official portal for COA GIS data and map products that do not reside on Data.AustinTexas.gov. Both are public domain websites, which means you may link to Data.AustinTexas.gov and ftp://ftp.ci.austin.tx.us/GIS-Data/Regional/coa_gis.html at no cost. When you link to Data.AustinTexas.gov or ftp://ftp.ci.austin.tx.us/GIS-Data/Regional/coa_gis.html, please do it in an appropriate context as a service
to people when they need to find official City of Austin data. We encourage you to use our logo,
which we’ve provided below. Placement of the Data.AustinTexas.gov logo is to be used only as a marker and link to the home page. It is not meant as a form of endorsement or approval from the City of Austin.

City of Austin Open Data Terms of Use - https://data.austintexas.gov/stories/s/ranj-cccq

Bar Ditch - A bar ditch is a man-made, open drainage-way into which excess surface water or groundwater drained from land, storm water runoff, or floodwaters flow either continuously or intermittently. It differs from a ditch in that it is typically less than 18 inches deep and contains driveway culverts of insignificant size (6" - 12"). A single line feature represents the entire line of ditch/culvert representing the bar ditch.This data has been collected as part of a larger project by the City of Austin's Watershed Protection and Development Review Department to inventory its drainage infrastructure and create a GIS to store this information. The project includes an internal team developing a GIS based on record documents and an external team locating ground level appurtenances using GPS field collection units. The data in this data set represents the former.