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THESIS HYDRAULIC ANALYSIS AND DOUBLE MASS CURVES OF THE MIDDLE RIO GRANDE FROM COCHITI TO SAN MARCIAL NEW MEXICO Submitted by Jason M Albert Department of Civil Engineering In partial fulfillment of the requirements For the Degree of Master of Science Colorado State University Fort Collins Colorado Fall 2004 COLORADO STATE UNIVERSITY August 30 2004 WE HEREBY RECOMMEND THAT THE THESIS PREPARED UNDER OUR SUPERVISION BY JASON M ALBERT ENTITLED HYDRAULIC ANALYSIS AND DOUBLE MASS CURVES OF THE MIDDLE RIO GRANDE FROM COCHITI TO SAN MARCIAL NEW MEXICO BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE Committee on Graduate Work Adviser Department Head ii ABSTRACT OF THESIS HYDRAULIC ANALYSIS AND DOUBLE MASS CURVES OF THE MIDDLE RIO GRANDE FROM COCHITI TO SAN MARCIAL NEW MEXICO The Middle Rio Grande located in Central New Mexico is one of the most historically documented rivers in the United States Since the early 20th century regulatory agencies have been interested and concerned with its management A Hydraulic Modeling Analysis HMA of the Corrales reach located 34 miles downstream of Cochiti Dam was conducted An extensive collection of data was used to determine the temporal and spatial changes in the channel General trends for the Corrales Reach include a decrease in width width to depth ratio energy grade line slope and wetted perimeter and an increase in mean velocity and depth during the 1962 2001 time period The reach degraded as much as 3 feet in some areas during this same time period while the sinuosity remained the same Since 1918 the width of the reach decreased from 1275 feet to 474 ft in 2001 Bed material coarsened from Cochiti Dam to just upstream of Albuquerque and the bed is expected to armor in the near future due to the lack of incoming sediment A Double Mass Analysis DMA was also conducted on the Albuquerque Reach of the Middle Rio Grande Data from four gaging stations Albuquerque Bernardo San Acacia and San Marcial were used to create the curves The Albuquerque gage shows the greatest effects of Cochiti dam with a large decrease in sediment transport after 1973 the other three gages have slight decreases 0 to 10 in sediment load after iii 1973 However the construction of Cochiti dam has not affected the suspended sediment transport which remained constant at 2 8 M tons year Also from the analysis it was estimated that the bed would degrade as much as 4 feet downstream from Cochiti Dam to San Marcial The sediment due to degradation is estimated to contribute 65 of the transported sediment at the Albuquerque and Bernardo gages At the San Acacia and San Marcial gages the majority of the transported sediment passing the gage is supplied by the Rio Puerco with the degradation of the bed contributing less than 8 of the sediment downstream of the Rio Puerco Jason Mark Albert Civil Engineering Department Colorado State University Fort Collins CO 80523 Fall 2004 iv ACKNOWLEDGEMENTS First and Foremost I would like to thank my lord and savior Jesus Christ for the ability to conduct this research and write this thesis I would also like to thank my Adviser Dr Pierre Julien for his superb guidance I received form him through out my time here at CSU Thanks to the U S Bureau of Reclamation for the opportunity to work on the Rio Grande I would also like to thank my other committee members Dr Brian Bledsoe of the Civil Engineering Department and Dr Sara Rathburn of the Geosciences Department Thanks to all that have come before me on this project the amount of information you all provided helped immensely The rest of the team needs to be thanked too thank you Un Max Forrest Mike Susan D K and Mark Special thanks is needed for the Lil Fella and Velleux Lil Fella thanks for everything I thoroughly enjoyed your company at the bars and work you are the nicest guy I have ever met Velleux without you I wouldn t have done as well as I did thank you for your suggestions insight and friendship I would also like to thank other friends that have shown their support though out this long strange journey including Amy John Mark Peaches I mean Kristoph Ben Billy and Matt Mark you have been awesome not only for providing me with a roof over my head but also for being a great friend Billy thanks for providing me with a friend to talk to when things got rough and one hell of week in the AK Finally I would like to thank my family especially my parents without you I wouldn t exist thanks for everything including the money and loving support I love you I suppose I should also thank my siblings Brian and Anthony for my competitive nature In closing I would like to thank everyone who helped thanks for keepin it real v TABLE OF CONTENTS ABSTRACT OF THESIS iii ACKNOWLEDGEMENTS v TABLE OF CONTENTS vi LIST OF FIGURES viii LIST OF TABLES xi LIST OF SYMBOLS xii LIST OF ACRONYMNS xiv CHAPTER 1 INTRODUCTION 1 CHAPTER 2 LITERATURE REVIEW 5 2 1 Introduction 5 2 2 Hydraulic Modeling Analysis HMA 7 2 2 1 Site Background 7 2 2 2 Previous Studies of the Middle Rio Grande 9 2 2 3 Hydrology and Climate 12 2 3 Total Load Procedures 14 2 3 1 Background 14 2 3 2 The Modified Einstein Procedure 15 2 3 3 Modified Einstein Equations 16 2 3 4 Computer Programs that perform MEP analysis 24 2 4 Mass and Double Mass Curves 25 2 5 Summary 27 CHAPTER 3 HYDRAULIC MODELING ANALYSIS HMA 28 3 1 Introduction 28 3 2 Reach Background 29 3 2 1 Reach Definition 29 3 2 2 Subreach Definition 30 3 2 3 Available Data 31 3 2 4 Channel Forming Discharge CFD 32 3 3 Geomorphic Characterization 34 3 3 1 Channel Classification 34 3 3 2 Sinuosity 39 3 3 3 Longitudinal Profile 40 3 3 4 Channel Cross Sections 42 3 3 5 Channel Geometry 43 3 3 6 Width 45 3 3 7 Bed Material 45 3 4 Suspended Sediment and Water History 50 3 4 1 Single Mass Curves 50 3 4 2 Double Mass Curve 52 3 5 Sediment Transport Analysis 53 3 6 Discussion of Uncertainties 58 3 7 Summary 59 CHAPTER 4 Analysis of Mass and Double Mass Curves 62 4 1 Introduction 62 4 2 Reach Background 62 4 1 1 Reach Definition 62 4 2 1 Data for Analyses 63 vi 4 2 Data Analyses and Results 64 4 2 1 Suspended Sediment Mass Curves 64 4 2 2 Sediment Rating Curves for Periods Between Breaks in Slope 65 4 2 3 Mass and Double Mass Curves 66 4 3 Summary of Double Mass Curves 80 4 4 Discussion 88 4 5 Discussion of Uncertainties 91 CHAPTER 5 SUMMARY AND CONCLUSIONS 93 5 1 Introduction 93 5 2 Hydraulic Modeling Analysis HMA 93 5 3 Double Mass Analysis DMA 94 5 4 Summary 96 REFERENCES 97


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