Download or read book Kolb Corridor Hwy Improvements 22nd St to I 40 Plus East west Connector Tucson written by and published by . This book was released on 1981 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lost a Desert River and Its Native Fishes written by Gordon Mueller and published by . This book was released on 2002 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Colorado River had one of the most unique fish communities in the world. Seventy-five percent of those species were found nowhere else in the world. Settlement of the lower basin brought dramatic change to both the river and its native fish. Those changes began more than 120 years ago as settlers began stocking nonnative fishes. By 1930, nonnative fish had spread throughout the lower basin and replaced native communities. All resemblance of historic river conditions faded with the construction of Hoover Dam in 1935 and other large water development projects. Today, few remember what the Colorado River was really like. Seven of the nine mainstream fishes are now Federally-protected as endangered. Federal and state agencies are attempting to recover these fish. However, progress has been frustrated due to the severity of human impact. This report represents testimony, old descriptions, and photographs describing the changes that have taken place in hopes that it will provide managers, biologists, and the interested public a better appreciation of the environment that shaped these unique fish.

Download or read book Polishing the Jewel written by Michael F. Anderson and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ribbon of Green written by Robert H. Webb and published by University of Arizona Press. This book was released on 2007 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Woody wetlands constitute a relatively small but extremely important part of the landscape in the southwestern United States. These riparian habitats support more than one-third of the regionÕs vascular plant species, are home to a variety of wildlife, and provide essential havens for dozens of migratory animals. Because of their limited size and disproportionately high biological value, the goal of protecting wetland environments frequently takes priority over nearly all other habitat types. In The Ribbon of Green, hydrologists Robert H. Webb, and Stanley A. Leake and botanist Raymond M. Turner examine the factors that affect the stability of woody riparian vegetation, one of the largest components of riparian areas. Such factors include the diversion of surface water, flood control, and the excessive use of groundwater. Combining repeat photography with historical context and information on species composition, they document more than 140 years of change. Contrary to the common assumption of widespread losses of this type of ecosystem, the authors show that vegetation has increased on many river reaches as a result of flood control, favorable climatic conditions, and large winter floods that encourage ecosystem disturbance, germination, and the establishment of species in newly generated openings. Bringing well-documented and accessible insights to the ecological study of wetlands, this book will influence our perception of change in riparian ecosystems and how riparian restoration is practiced in the Southwest, and it will serve as an important reference in courses on plant ecology, riparian ecology, and ecosystem management.

Download or read book Summary of Travel Trends written by Patricia S. Hu and published by . This book was released on 1999 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Dept. of Transport. (DoT) Strategic Plan for FY 1997-2002 identifies 5 performance goals: safety, mobility, econ. growth & trade, human & natural environ., & nat. security. DoT conducts the NPTS to obtain info. on personal travel of U.S. households with respect to why, how, when, where from, where to, how frequently, how long, & with whom. The NPTS also provides info. by subgroups of the pop., e.g., by age, gender, race, zero-vehicle households, which allows important policy analyses of how transport. serves these groups. This report provides the results of the 1995 NPTS of travel by the civilian, non-institutionalized pop. age 5 & older.

Download or read book The American Southwest and Mesoamerica written by Jonathon E. Ericson and published by Springer Science & Business Media. This book was released on 1993-01-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only available volume to summarize current knowledge of prehistoric regional exchange in the American Southwest and Mesoamerica. As such, anthropologists and archaeologists will find it a valuable source of important data for comparative analysis of regional systems relative to sociopolitical organization.

Download or read book Traffic Signal Systems written by and published by . This book was released on 2017 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tucson Mountains written by William Ascarza and published by Arcadia Publishing. This book was released on 2010 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tucson Mountains are located several miles west of downtown Tucson. For thousands of years, this mountain range has been inhabited, explored, and traveled by Native Americans who settled near the Santa Cruz River. Homesteaders, prospectors, and ranchers arrived in the late 19th century, drawn by the area's close proximity to Tucson and the Southern Pacific Railroad, as well as the promise of land and mineral wealth. During the past 100 years, conservation efforts to preserve and enhance the community's understanding of this geologic treasure have led to the establishment of museums and parks, including Tucson Mountain Park, the Arizona-Sonora Desert Museum, and Saguaro National Park West. Old Tucson Studios has used the surrounding Tucson Mountains as a movie backdrop for more than 70 years. The White Stallion Ranch and the J. W. Marriot at Starr Pass make the Tucson Mountains a popular destination for visitors who want to experience the rugged beauty and character of the American Southwest.

Download or read book New Hampshire Coastal and Tidal Areas written by United States. Engineers Corps and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of Transportation s Intelligent Transportation Systems ITS Projects Book written by and published by . This book was released on 1998 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains summaries of current U.S. intelligent transportation systems projects.

Download or read book Transportation Conformity written by and published by . This book was released on 2017 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transportation conformity is required under the Clean Air Act (CAA) Section 176(c) to ensure that Federally-supported transportation activities are consistent with (“conform to”) the purpose of a State Implementation Plan (SIP). Transportation conformity establishes the framework for improving air quality to protect public health and the environment. Conformity to the purpose of the SIP means Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) funding and approvals are given to highway and transit activities that will not cause new air quality violations, worsen existing air quality violations, or delay timely attainment of the relevant air quality standard, or any interim milestone. This Guide was prepared to help State and local officials understand transportation conformity and how conformity requirements relate to transportation investments in their communities. Specifically, the implications of conformity on metropolitan transportation plans, transportation improvement programs (TIPs), and transportation projects are discussed. The Guide provides overview information on the major elements of the conformity process and provides answers to basic questions. Several exhibits are included in the Guide to illustrate key elements of the conformity process. Appendices are also included that discuss the health effects of pollutants, options to reduce on-road mobile source emissions, and resource agency contacts.

Download or read book Guidebook for Freight Policy Planning and Programming in Small and Medium sized Metropolitan Areas written by National Cooperative Highway Research Program and published by Transportation Research Board. This book was released on 2007 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide for the Planning Design and Operation of Pedestrian Facilities written by and published by AASHTO. This book was released on 2004 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book John s First Job written by and published by . This book was released on 1956 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Experiment Station written by and published by . This book was released on 1888 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book News of the Weird written by Chuck Shepherd and published by Plume Books. This book was released on 1989 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: For news junkies and fans of the bizarre-but-true, here is an outrageous collection of all-real, all-weird news stories culled from the nation's mainstream newspapers. Line art throughout.

Download or read book Water Law in a Nutshell written by David H. Getches and published by West Academic Publishing. This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliable source on water law contains updated court decisions from hundreds of case and statutory changes in several states. There is an added discussion on surface use of waters in light of the increased importance of public recreational water uses. Throughout the edition, where appropriate, analysis expands on the subjects of instream flow protection, water quality, and public-interest concerns in water use and water collection.