Water Distribution Utility Network for Joshua Tree National Park Grace Durham ● Ruijin Ma, PhD ● Geographic Information Science ● University of Redlands Background: Joshua Tree was established as a National Monument in 1936 and then as a National Park in 1994; its boundaries have changed three times since 1936. This desert wilderness contains about 800,000 acres and visited by over 2.5 million people each year. There are many day use and overnight recreation areas within Joshua Tree, with campgrounds including utilities services. The underground Water Utility Networks for Joshua Tree National Park were laid down in the early 1960s.
Problem Statement: The major problem Joshua Tree faced was the historical lack of documentation or data related to the location of their underground utility networks. Which resulted in the inability to monitor and maintain their utility networks. The only data available was a hand drawn irrigation map for the Oasis of Mara from 1985. The water utility network within Joshua Tree are not connected to one another, making it more difficult to monitor each separate subnetwork.
Methods: The methods involved for the successful completion of this project are strategically developed to ensure all objectives are met. The utility network and an additional domain network will be created using ArcGIS Pro 2.8 utility network tools. All network properties will be configured for each component in the utility network to enable the utility networks functions. Network asset groups (subtypes) and associated asset types (domains) were created for each feature class in both the structure and water domain networks. Then the network rules, tier groups, tiers, attributes, categories, and terminals were configured. The last step in creating the water utility network was creating the subnetworks and configuring a trace for each subnetwork. Next, the database will be published to an ArcGIS Enterprise account as a feature service. The Web-GIS application will be created using ArcGIS API for JavaScript and then utilized to conduct utility network data collection and tracing in the fields or in the office. Utilizing this methodology workflow organized into stages will foster the desired solution for the Joshua Tree National Park project. The result will support future projects desired by Joshua Tree with the data, methods, and maps available to the National Park.
Black Rock Subnetwork
Oasis of Mara Subnetwork
Solution: There were three elements addressed in this project to develop the water distribution utility network for Joshua Tree National Park. First, a database was developed to store utility network data in one known location. The second element was to ensure that the water distribution utility network is configured appropriately for the client’s specific utility network. The water subnetworks constructed within the utility network include the Oasis of Mara, Black Rock, and Cottonwood locations. The third component was to provide specific functionality within a utility network web application so the utility network can be displayed and updated in the field. Specific widgets were configured to enhance functionality of the web application for adding and updating data in the field.
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