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Red Gap Ranch Pipeline
red gap
Red Gap Ranch Pipeline

The City hired JACOBS Engineering to conduct a feasibility study to analyze a variety of information associated with a possible pipeline from the City’s Red Gap Ranch located 40 miles east of the City. The study will define the most optimum pipeline alignment, conceptual design of the pipeline and associated facilities, right-of-way, federal, state & tribal environmental laws and estimated costs associated with the construction, operation and maintenance of the pipeline. Phase 1 of the three phase project was complete in 2009, and Phase 2 work was halted in 2009 due to issues obtaining right-of-way (ROW) access with various entities in order to complete the feasibility study.  In July 2014, after five years of discussions with various agencies and government entities, the City attended a meeting with the Arizona Department of Transportation (ADOT) and the Arizona Department of Water Resources (ADWR) at which ADOT agreed to work with the City in order to complete the feasibility study and to develop an Intergovernmental Agreement (IGA) that identifies the necessary steps for ADOT and the City to consider regarding a permit for the construction and maintenance of a waterline within the ADOT ROW of Interstate 40.  This conversation was memorialized in this letter from the Director of ADOT to the Mayor on December 31, 2014. The City plans to complete Phase 2 as soon as possible in order to determine a cost estimate as outlined above.

The City of Flagstaff purchased Red Gap Ranch in 2005, through a voter-approved bond process. Red Gap Ranch, located approximately 40 miles east of Flagstaff, lies above underground aquifers which can substantially increase the water supply available to Flagstaff. In addition to accommodating future water needs, Red Gap Ranch will diversify the sources of the existing water supply.

Pipeline Schedule
The City of Flagstaff is currently in Phase I of a Feasibility Study to determine the most constructable pipeline alignment. The results of the Feasibility Study will determine how to proceed with the Pipeline project. The next steps in the process are Phases II and III of the Feasibility Study, both of which involve more detailed study of a Recommended Alignment.

Feasibility Study Overview
The Red Gap Ranch Pipeline Feasibility Study seeks to identify the best pipeline alignment for further study. The Feasibility Study has identified four goals : Lowest Cost, Least Community Impact, Least Environmental Impact, and Least Project Risk. The final recommendation of the Feasibility Study will serve as a guide for achieving these goals in design and construction phases. View the most recent project information. (Meeting Takehome 1_8_09.PDF)

Public Involvement
In order to best understand public sentiment regarding possible issues associated with the Recommended Alignment. The Red Gap Ranch Pipeline Feasibility Study project team is accepting all public comment for consideration.

Please take the opportunity to click the link below and email the project team your questions, comments, and concerns. All submissions will be included in the Public Record of the project. To leave a comment regarding the project.

Project Documents

The following links contain useful project information: