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Tempe experienced rapid growth in population and area from 1949 to 1975, stretching its resources thin and changing the character of the city. City boosters encouraged growth through the 1950s to safeguard Tempe’s borders against its larger neighbor, Phoenix. New residents moved to Tempe as it grew, expecting suburban amenities

Tempe experienced rapid growth in population and area from 1949 to 1975, stretching its resources thin and changing the character of the city. City boosters encouraged growth through the 1950s to safeguard Tempe’s borders against its larger neighbor, Phoenix. New residents moved to Tempe as it grew, expecting suburban amenities that the former agricultural supply town struggled to pay for and provide. After initially balking at taking responsibility for development of a park system, Tempe established a Parks and Recreation Department in 1958 and used parks as a main component in an evolving strategy for responding to rapid suburban growth. Through the 1960s and 1970s, Tempe pursued an ambitious goal of siting one park in each square mile of the city, planning for neighborhood parks to be paired with elementary schools and placed at the center of each Tempe neighborhood. The highly-publicized plan created a framework, based on the familiarity of public park spaces, that helped both long-time residents and recent transplants understand the new city form and participate in a changing community identity. As growth accelerated and subdivisions surged southward into the productive agricultural area that had driven Tempe’s economy for decades, the School-Park Policy faltered as a planning and community-building tool. Residents and city leaders struggled to reconcile the loss of agricultural land with the carefully maintained cultural narrative that connected Tempe to its frontier past, ultimately broadening the role of parks to address the needs of a changing city.
ContributorsSweeney, Jennifer (Author) / Thompson, Victoria (Thesis advisor) / Gray, Susan (Committee member) / MacFadyen, Joshua (Committee member) / Smith, Jared (Committee member) / Arizona State University (Publisher)
Created2019
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Description

River rafting trips and hikers use sandbars along the Colorado River in Marble and Grand Canyons as campsites. The U.S. Geological Survey evaluated the effects of Glen Canyon Dam operations on campsite areas on sandbars along the Colorado River in Grand Canyon National Park. Campsite area was measured annually from

River rafting trips and hikers use sandbars along the Colorado River in Marble and Grand Canyons as campsites. The U.S. Geological Survey evaluated the effects of Glen Canyon Dam operations on campsite areas on sandbars along the Colorado River in Grand Canyon National Park. Campsite area was measured annually from 1998 to 2012 at 37 study sites between Lees Ferry and Diamond Creek, Arizona. The primary purpose of this report is to present the methods and results of the project.

Campsite area surveys were conducted using total station survey methods to outline the perimeter of camping area at each study site. Campsite area is defined as any region of smooth substrate (most commonly sand) with no more than an 8 degree slope and little or no vegetation. We used this definition, but relaxed the slope criteria to include steeper areas near boat mooring locations where campers typically establish their kitchens.

The results show that campsite area decreased over the course of the study period, but at a rate that varied by elevation zone and by survey period. Time-series plots show that from 1998 to 2012, high stage-elevation (greater than the 25,000 ft3/s stage-elevation) campsite area decreased significantly, although there was no significant trend in low stage-elevation (15,000–20,000 ft3/s) campsite area. High stage-elevation campsite area increased after the 2004 and 2008 high flows, but decreased in the intervals between high flows. Although no overall trend was detected for low stage-elevation campsite areas, they did increase after high-volume dam releases equal to or greater than about 20,000 ft3/s. We conclude that dam operations have not met the management objectives of the Glen Canyon Adaptive Management program to increase the size of camping beaches in critical and non-critical reaches of the Colorado River between Glen Canyon Dam and Lake Mead.

ContributorsKaplinski, Matt (Author) / Hazel, Joe (Author) / Parnell, Rod (Author) / Hadley, Daniel R. (Author) / Grams, Paul (Author)
Created2014-07