DescriptionThe Tunnels layer is used primarily to reference structural features for GIS-based highway project planning. It is also used for reference within various GIS applications, such as OTIS. The data originates from the Pontis database, which is CDOT's database of record for roadway structures. That database contains location information acquired thru GPS technology, among other means.

This layer is derived from the Structures dataset.



Last Update
2017


Update FrequencyAs needed


Data Owner
CDOT Staff Bridge


Data Contact
Division of Transportation Development - GIS Support Unit


Collection Method




Projection
NAD83 / UTM zone 13N


Coverage Area
Statewide


Temporal




Disclaimer/Limitations
There are no restrictions and legal prerequisites for using the data set. The State of Colorado assumes no liability relating to the completeness, correctness, or fitness for use of this data.