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ContributorsDiaz, Mimi (Author) / Gootee, Brian F. (Author) / Youberg, Ann (Author) / Arizona Geological Survey (Publisher)
Created2008-11
Description

A series of small earth movements occurred along the slopes of State Route 87 at about mile marker 224 (between the Bush Highway and Route 188) throughout the winter of 2007‐2008, culminating with a landslide on Friday, 21 March 2008. This landslide buckled the southbound lanes, displaced the northbound lanes,

A series of small earth movements occurred along the slopes of State Route 87 at about mile marker 224 (between the Bush Highway and Route 188) throughout the winter of 2007‐2008, culminating with a landslide on Friday, 21 March 2008. This landslide buckled the southbound lanes, displaced the northbound lanes, and closed the highway for nearly a week. The mass movements occurred on slopes that were constructed with re‐vegetated, laid back slopes; soil nail walls; and rip rap‐lined channels. However, our reconnaissance mapping indicates that most, if not all, of the slope movements are located within a much larger, older landslide adjacent to, and cut by, SR‐87. No specific trigger for the landslides was immediately apparent, although a combination of factors (e.g., precipitation, groundwater levels, etc.) may have contributed to conditions for the slope failure. Headscarps of various types of landslides are present along both sides of the highway. Results from our preliminary investigation indicate that up to three other paleo‐landslides may be present in the immediate vicinity. The full extent and nature of these landslides are unknown and require further investigation to evaluate their potential to be reactivated and risk they pose to the highway.

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ContributorsYouberg, Ann (Author) / Cook, Joseph P. (Author) / Arizona Geological Survey (Publisher)
Created2008-06
Description

This field trip guide was created for a Project WET conference held in Tucson, Arizona, June, 2007. This guide discusses the general geology of the Santa Catalina Mountains in Sabino Canyon, and points out evidence of the July 2006 floods and debris flows. There are stops in the first few

This field trip guide was created for a Project WET conference held in Tucson, Arizona, June, 2007. This guide discusses the general geology of the Santa Catalina Mountains in Sabino Canyon, and points out evidence of the July 2006 floods and debris flows. There are stops in the first few miles of canyon, and towards the end of the tram road, where the most spectacular debris flows are located.

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ContributorsYouberg, Ann (Author) / Arizona Geological Survey (Publisher)
Created2008-09
Description

In order to begin to assess debris‐flow hazards along the Santa Catalina Mountains in Pima County, we mapped the extent and character of relatively young prehistoric debris‐flow deposits in detail at fifteen
canyon mouths. Mapping was conducted on a scale of 1:6,000 using aerial photographs, detailed
topography, and field relationships. Deposits were

In order to begin to assess debris‐flow hazards along the Santa Catalina Mountains in Pima County, we mapped the extent and character of relatively young prehistoric debris‐flow deposits in detail at fifteen
canyon mouths. Mapping was conducted on a scale of 1:6,000 using aerial photographs, detailed
topography, and field relationships. Deposits were classified into relative age categories based on
topographic relationships, soil development and surface characteristics of the deposits. Ages of selected
debris‐flow deposits in four canyons – Soldier, Sabino, Finger Rock and Pima – were estimated using
radiocarbon (14C) and cosmogenic (10Be) isotope methods.

Evidence of past debris flows were found in all fifteen canyons. Relative age dating, corroborated by
10Be, indicates the largest and most extensive deposits in all canyons are late Pleistocene to early
Holocene in age. Events from 2006 show that some potential exists for debris flows to exit the mountain front into developed areas near canyon mouths.

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ContributorsYouberg, Ann (Author) / Arizona Geological Survey (Publisher)
Created2008-06-30
Description

The goal of this study is to develop a method for identifying potential post-fire debris flow hazard areas prior to the occurrence of wildfires, providing more time for local governments and emergency planners to develop and execute hazard mitigation strategies. This pilot study focuses on the communities of Pine and

The goal of this study is to develop a method for identifying potential post-fire debris flow hazard areas prior to the occurrence of wildfires, providing more time for local governments and emergency planners to develop and execute hazard mitigation strategies. This pilot study focuses on the communities of Pine and Strawberry, which are located in forested canyons at the base of the Mogollon Rim in north-central Arizona. Results from this project will provide local agencies, emergency planners and land managers more effective tools for prioritizing watershed treatment areas and implementing mitigation measures to alleviate potential impacts and threats from post-fire debris flows to infrastructure, human life, and property in a timely and cost-effective manner.

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Created1996-02
Description

In the Valley, developing viable long-term transit from where we are currently will be very difficult if key
components continue to remain unaligned. Thus, before getting to the primary purpose of this report, it is important to first establish the players and basic considerations relevant to the effectiveness of a transit

In the Valley, developing viable long-term transit from where we are currently will be very difficult if key
components continue to remain unaligned. Thus, before getting to the primary purpose of this report, it is important to first establish the players and basic considerations relevant to the effectiveness of a transit system.

Few would dispute that the Phoenix metropolitan area is severely lacking in terms of mass-transit compared to other similarly sized and configured cities. The Valley’s fleet of roughly 400 buses is about one-third of the service found in San Diego, Atlanta, and Seattle. In addition, most of Phoenix’ peer regions either already have, or are planning rail systems. Of the 30 largest metropolitan areas in the U.S., only six -- Phoenix included -- do not currently have or are not planning to add rail to their transit system.

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Created1997-03
Description

Believing that voters might support transit if they felt like an integral part of the transit proposal decision-making process, the Phoenix Chamber of Commerce's Valleywide Transit Task Force set out in early 1995 to initiate a bottom-up process which would enable people to say, "here's what we want." The Task

Believing that voters might support transit if they felt like an integral part of the transit proposal decision-making process, the Phoenix Chamber of Commerce's Valleywide Transit Task Force set out in early 1995 to initiate a bottom-up process which would enable people to say, "here's what we want." The Task Force agreed that the first step in the process was to initiate a new dialogue. the Morrison Institute for Public Policy was asked to write a briefing paper, which would re-invigorate the transit debate. The resulting report, "Transit in the Valley: Where Do We Go From Here?" painted a bleak picture of the Valley's existing transit system and challenged many long-held conventional wisdoms. The dialogue had begun. The report was then presented to the citizens of 17 Valley cities and towns for their consideration in 16 public meetings sponsored by cities and their local Chambers of Commerce. In community forums conducted between October 1996 and February 1997, more than 500 Valley residents discussed the Valley's transit future. This document summarizes the questionnaire responses by 501 people who attended the forums.

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Created1997-01
Description

This report brings together the results of a survey of 1100 homeless people living in and around downtown Phoenix in 1996 with the results of a similar survey conducted in 1983. In addition to providing a snapshot of the homeless population in Phoenix, the data and comparative information presented in

This report brings together the results of a survey of 1100 homeless people living in and around downtown Phoenix in 1996 with the results of a similar survey conducted in 1983. In addition to providing a snapshot of the homeless population in Phoenix, the data and comparative information presented in this report also reveal the complex and intractable nature of the homeless problem in general.

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ContributorsCampbell, Heather E. (Author) / Johnson, Ryan M. (Author) / Morrison Institute for Public Policy (Publisher)
Created1999
Description

This book is designed to be a "cookbook" for water evaluators who would like to be able to do a good job evaluating their water programs for decision-making, but who don't know a lot about statistics.

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Created2000-01
Description

Despite several early attempts in the Arizona Legislature to modify the framework for where the newly-passed Proposition 200 money would go, the four accounts established in the original voter-approved Tobacco Tax and Health Care Act have been maintained as intended since 1995. However, large sums of Proposition 200 revenue –

Despite several early attempts in the Arizona Legislature to modify the framework for where the newly-passed Proposition 200 money would go, the four accounts established in the original voter-approved Tobacco Tax and Health Care Act have been maintained as intended since 1995. However, large sums of Proposition 200 revenue – on average $90 million annually – have gone unallocated and unspent by the Legislature.