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Show Figure Page 5. Summary of sedimentation rates, Upper Rio Grande sub-basin.............298 6. Sediment production, Upper Rio Grande and Pecos Basins..................300 7. Water resources and land use......facing 346 No. 5. The Colorado 1. Average annual precipitation.........358 2. Colorado sub-basins, according to agreement of Colorado River Compact..........389 3. Existing and potential hydroelectric power developments............facing 458 4. Federal land management responsibilities . facing 458 5. Water resources and land use......facing 458 No. 6. The Connecticut 1. Water resources and land use......facing 466 2. Potential hydroelectric power and interconnections in New England and New York.......474 3. Connecticut River Basin .......facing 506 No. 7. The Alabama-Coosa 1. Major river systems in the Southeast......524 2. Areas of similar land features.........525 3. Average annual precipitation, Southeastern United States..................527 4. Average annual runoff, Southeastern United States..................528 5. Existing and potential hydroelectric power, South- east region................569 6. Water resources and land use......facing 570 No. 8. The Potomac 1. Indicated water quality...........595 2. Development of lower Potomac River.....604 3. Water resources and land use......facing 618 No. 9. The Ohio Figure Page 1. Average annual precipitation.........634 2. Average annual runoff............635 3. Existing and potential inland navigation, Central United States...............646 4. Existing and potential hydroelectric power developments...........facing 698 5. Water resources and land use.......facing 698 6. Cumberland river basin water resources and land use...............facing 698 No. 10. The Tennessee 1. Average annual precipitation.........712 2. Pickwick Landing-sectional view of dam .... 713 3. Existing and potential inland navigation, Central United States...............719 4. Present-day Chattanooga under 1867 flood condi- tions ...................723 5. TVA power system..............748 6. Trends in the average rate for residential electricity in Tennessee, 1929-49...........771 7. Regional trends in sales of electric energy, 1929- 49....................773 8. Use and cost of electricity in the average home in the Tennessee Valley, 1933-50........774 9. Growth in residential use of electricity in Tennes- see, with comparative data for the entire United States, 1927-49..............776 10. Growth in the annual use of electricity by large commercial and industrial consumers in the Tennessee Valley.............777 11. Typical monthly bills, TVA basic rate compared with average bills in cities of over 50,000 popula- tion ...................790 12. Water resources and land use......facing 19A TABLES No. 7. The Columbia Table Page 1. Existing hydroelectric power developments. ... 10 2. Potential hydroelectric power in Columbia River Basin...................22 3. Repayment record on selected irrigation projects, to 1947..................28 4. Cost of irrigation facilities recommended by Bureau ofReclamation...............29 5. Regional electric power costs, revenues of selected utilities from sale of electric power to commercial and industrial consumers, 1948, in 6 United States regions............... 31 No. 2. The Central Valley of California Table Page 1. Existing hydroelectric power developments. ... 92 2. Hydroelectric power developments under con- struction, authorized, and recommended .... 95 3. Tentative list of hydroelectric power possibilities other than at projects under construction, author- ized, and recommended ...........96 4. Initial stages of Central Valley projects and pro- grams ..................154 XIII |
