This study was conducted to identify methods that have been used in the repair and rehabilitation of concrete dams. Information was obtained through literary searches, discussions with project personnel, and visits to project sites. Each case history includes a background of the project, the deficiency that necessitated repair or rehabilitation, and descriptions of materials and methods used in the repair or rehabilitation. When available, the cost of the repair project and the performance of the repair to date have been included. Case histories included in this report cover a range of deficiencies in concrete structures, including cracking, spalling, erosion, leakage, inadequate PMF capacity, expansion resulting from alkali-aggregate reaction, instability, and insufficient storage capacity.

In what follows can be found the doors to a house of words and stories. This house of words and stories is the "Archive of New Mexico" and the doors are each of the documents contained within it. Like any house, New Mexico's archive has a tale of its own origin and a complex history. Although its walls have changed many times, its doors and the encounters with those doors hold stories known and told and others not yet revealed. In the Archives, there are thousands of doors (4,481) that open to a time of kings and popes, of inquisition and revolution. "These archives," writes Ralph Emerson Twitchell, "are by far the most valuable and interesting of any in the Southwest." Many of these documents were given a number by Twitchell, small stickers that were appended to the first page of each document, an act of heresy to archivists and yet these stickers have now become part of the artifact. These are the doors that Ralph Emerson Twitchell opened at the dawn of the 20th century with a key that has served scholars, policy-makers, and activists for generations. In 1914 Twitchell published in two volumes "The Spanish Archives of New Mexico," the first calendar and guide to the documents from the Spanish colonial period. Volume One of the two volumes focuses on the collection known as the "Spanish Archives of New Mexico, Series I," or SANM I, an appellation granted because of Twitchell's original compilation and description of the 1,384 documents identified in the first volume of his series. The Spanish Archives of New Mexico was assembled by the Surveyor General of New Mexico (1854-1891) and the Court of Private Land Claims (1891-1904). The collection consists of civil land records of the Spanish period governments of New Mexico and materials created by the Surveyor General and Court of Private Land Claims during the process of adjudication. It includes the original Spanish colonial petitions for land grants, land conveyances, wills, mine registers, records books, journals, dockets, reports, minutes, letters, and a variety of other legal documents. Each of these documents tell a story, sometimes many stories. The bulk of the records accentuate the amazingly dynamic nature of land grant and settlement policies. While the documents reveal the broad sweep of community settlement and its reverse effect, hundreds of last wills and testaments are included in these records, that are scripted in the most eloquent and spiritual tone at the passing of individuals into death. These testaments also reveal a legacy of what colonists owned and bequeathed to the next generations. Most of the documents are about the geographic, political and cultural mapping of New Mexico, but many reflect the stories of that which is owned both in terms of commodities and human lives. Archives inevitably, and these archives more than most, help to shape current debates about dispossession, the colonial past, and the postcolonial future of New Mexico. For this reason, the task of understanding the role of archives, archival documents, and the kinds of stories that emanate from them has never been more urgent. Let this effort and the key provided by Twitchell in his two volumes open the doors wide for knowledge to be useful today and tomorrow.--From the Foreword by Estevan Rael-Galvez, New Mexico State Historian"

As a source of reference material for the practising water engineer or water manager, this book outlines a strategy for projecting water consumption for specific types of land use and selecting a water conservation programme to maximise the beneficial use of a limited natural resource - a situation that typifies new development nationally and worldwide.

Presents the life and accomplishments of José Dario Gallegos who was born near Taos, N.M. in 1830 and who established the first store in the San Luis Valley in 1857.

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