WSP11225

• File Number: 8220.200.05.A
• Description: Hoover Dam/Lake Mead/Boulder Canyon Project
• Basin: Colorado Mainstem
• Date: 12/1/1948
• Author: USDOI/BOR
• Title: Boulder Canyon Project Final Reports: Part I/ Bulletin I - General History and Description of Project
• Water Supply Pro - Doc Type: Report/Study

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TABLE OF CONTENTS

INTRODUCTION

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Chapter I-The Setting

DESCRIPTION OF THE BASIN
Seerion Page
1 Area. m..m........m_........._~....m.__.... ......._...__....... ..___.................................. 1
2 Geography ..._......._............................................................_......__....._.....m......_..._____....... 1
3 Geologic History m.___.....__......__............_..............._..................H.__._....____......... 4
4 The Delt. ......_____.....__..................._..__..___.._....._.........___________...___.__........_ 4
DESCRIPTION OF THE RIVER

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5 Size ____...".
6 Characteristics
7 Silt ._...,.... .._.n.__.........._...__........._...........

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Chapter II-Exploration and Development

EARLY EXPWRATIONS

8 The Spaniards ._..........__..._m..__........____.......m..............._............_.. ...._mm_......_.................. 11
9 American Frontiersmen m....._.......__.........___.__....__....______.__.__.___..._.....~ 13
10 Attempts at Navigation ..........___......._.__...~.._..._.._._________......_...._....._..._ 14
11 Early Surveys _..................._.....____.......__ ........_.___..___...._......_._._.____............ 17

SETrLEMllNT AND DEVELOPMENT

12 Irrigation .___....____...._.........................................._..._.._...._....._....._._........_......._...._..___... 22
13 Imperial Valley ......~_.......__.._._......_......_.__._......._..._...._....._ ........_..__._........................._ 23
14 lands in Mexico .____...____................_............_.............__............~~....._...__._._..._......_.___ 27
1~ Lands in Coadiella Valley _...._ ......................................... ......._................._.._......... 27
16 lands in Yuma Valley __......___......_ ............................__..............._.... ......................................_ 28
17 Lands in the Palo Verde, Valley ................_ ..................._.....m....__.._._... 29
18 Other Irrigable Areas ..__...._ ......................_.._ ......_............ ...................._.._..........._._ ' 30

Chapter III-The Problem

19 Drought and Flood __.m..___.._.__..__....__..m____......_.........._...._._._____...___ 33
20 The Imperial Valley Disasters __..__..... ......._......_..........._..._ .............._........_ 35
21 Protective Measures after 1907 .......__.... ..........._.__....................._....__............._... ...................... 39
22 Threats to Other Areas ..........._..._..._.._.................. ..........................!.....................,_ '<40
23 Proposals for an All-American Canal ._...__.........'" ..__._......._......._......._ ............................ 41

Chapter IV-Seeking a Solution

24 Proposals and Surveys

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