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While all redevelopment may trigger water and wastewater improvements, particular care must be taken when contemplating new residential or commercial construction or changes in land use density or use in the following areas, which are shown on the map below. Those planning projects in the map areas shown below should contact the Water Services Department as early in the planning process as possible to begin assessing water and sewer requirements. Click on a specific area on the map below to view additional information.
Downtown Phoenix - Map Area 1
Downtown is experiencing a resurgence of activity and interest with the expanded convention center, light rail, the new ASU campus, and mixed use development projects. These projects are beginning to change the downtown environment. Currently downtown is served by sufficient regional water and sewer infrastructure to meet the needs of growth for the next decade or more. However, many of the existing local water distribution and sewer collection mains were constructed prior to 1960 and were not designed to satisfy the large water volume requirements associated with modern high density development. Most of downtown will eventually require a new 12" diameter distribution water main grid that can accommodate numerous multistory buildings. Some locations downtown already have adequate water lines to meet project needs, but in other locations the existing water mains are insufficient to meet the domestic and fire flow requirements of projects that often are more than 10 stories high.
Camelback Road - McDowell Road Corridor - Map Area 2
The water pressure zone that currently serves the area south of Camelback Road, east of the State Route 51, north of the Grand Canal and west of 44th Street has reached its limit to serve new large development projects in the area. In response, the City has plans to create a new pressure zone, 1A, in the upper area of Zone 1. Construction is currently funded in July 2010 for new 16” to 36” transmission mains, a new booster station, as well as the installation of six pressure reducing valves that will create the new pressure zone 1A, between the existing Zone 2A and Zone 1.
Camelback Core - Map Area 3
The Camelback Core area currently does not have sufficient water capacity or pressure to provide service for any further high rise development. New high-rise development in the Camelback Core will be required to construct significant regional system improvements or wait until the City is able to fund these improvements. The City has worked with a group of core property owners to determine the improvements required to be built by developers to allow projects to move forward in this area. In response, several property owners have entered into a development agreement or essentially a joint partnership with the City to build this infrastructure, which is scheduled for completion in 2011. Improvements include the construction of 20” to 48” water transmissions lines and a 33 mgd booster station south of the Camelback Core to serve the area.
Camelback Road and 44th Street - Map Area 4
Additional development near or at this intersection may require new water and wastewater facilities. Depending upon the specific location of projects, the existing facilities may be able to accommodate limited additional residential or commercial development, but a significant amount of redevelopment will trigger the need for larger water distribution lines. The entire intersection’s water system is close to limits for commercial fire flow for this portion of water pressure zone 3b (east of 24th Street and north of the Arizona Canal). Water infrastructure improvements will depend on the scale, timing and nature of development at the intersection. Wastewater improvements will vary upon which corners are developed and when they develop since different systems serve the intersection. The southern half of the intersection has some additional capacity, but could not handle full development without improvements. Sewer improvements to the northern half of the intersection would need to be much more significant to accommodate development.
Central Avenue and Camelback Road - Map Area 5
Larger sewer lines may be required to serve several proposed developments at the intersection of Central Avenue and Camelback Road. Depending upon the timing, scale and densities of the projects at this intersection, the sewer lines in Central Avenue, Coolidge Street, Third Avenue, and Glenrosa Street may have to be upgraded to 18” or larger diameter pipes. The timing and size of any new sewer facilities is dependent on the sequence of proposed redevelopment and the cumulative additional residential and commercial space being planned. As in many other similar circumstances, the ability to tap into the existing system without triggering infrastructure upgrades will depend upon the densities and demand load of the first approved projects
Arizona State University West - Map Area 6
The ASU West campus is currently experiencing low water pressure. The campus is located in the upper northwest area of water pressure zone 2A and is located approximately nine miles away from the nearest water storage facility and 3.5 miles north of the nearest transmission main for this pressure zone. The existing pressure problems will be compounded in this area by expansion of the campus, which is planned to ultimately add approximately 2.5 million square feet of student and commercial facilities, add 7,600 students, and sharply increase the resident student population by 3,350, according to the ASU West Master Plan. Alternative water sources include 42" and 16” transmission mains in the area, but these mains serve water pressure zone 3D, not 2A. An immediate solution to the pressure problems at ASU West would be to transfer the campus and its environs to water pressure zone 3D, which can be done at relatively low cost. Buildout at the ASU West Campus would require at least a new 16” or larger main connecting the campus to the 42” main in pressure zone 3D, although the size and timing for this main will depend upon the timing and type of new development at the campus.
Camelback and 115th Avenue - Map Area 7
There are no sewers currently serving the north side of Camelback Road in this area. The closest interceptor sewer is to the east at 99th Avenue. Since the topography lowers in elevation west of 99th Avenue, any wastewater generated by new development in this area will need to be pumped uphill through force mains to 99th Ave.
Last modified on
05/26/2011 13:15:11
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