Appendix B. Report of Prof. J. A. Switzer—Continued.

Clinch River and tributaries.

Powell River...

Emory and Obed Rivers.

Holston River and tributaries...

French Broad River and tributaries..

Little River.....

Little Tennessee River..

Hiwassee River..

Cumberland Plateau streams.

Elk River..

Page

120

121

121

121

122

122

123

123

124

124

Duck River.....

Calculation of power at these sites..

124

124

Power projects which have not materialized....

Appendix C. Report on geology and mineral resources of Tennessee River

Basin by Rolf A. Schroeder.

Caves, sinks, and subsurface passages..

Abrasives.

Asbestos..

127

128

128

129

129

130

130

131

Appendix D. Industrial survey of Tennessee River Basin from Knoxville to

Riverton, by E. D. Stratton and J. G. Kitchell, of Southern Railway Devel-

opment Service..

Transportation..

Industrial survey of cities and towns in Tennessee River Basin.

Appendix E. Report of Mr. D. C. Boy on the natural resources of that portion

of the Tennessee River Basin traversed by and immediately tributary to the

Carolina, Clinchfield & Ohio Railway..

Table 1. Discharge of Tennessee River at five localities.

Table 2. Heights of five highest floods on record...

Table 3. Appropriations for Tennessee River and tributaries.

Table 4. Commercial statistics of Tennessee River above Chattanooga..

Table 5. Bridges across Tennessee River above Chattanooga.

Table 6. Traffic through Hales Bar Lock.

Table 7. Statement of traffic through Muscle Shoals Canal...
Table 8. Commercial statistics of Tennessee River between Chattanooga and
Florence....

Table 9. Bridges across Tennessee River between Chattanooga and Florence..
Table 10. Traffic through Colbert Shoals Canal...

Table 11. Commercial statistics of Tennessee River, Florence to Paducah.
Table 12. Bridges across Tennessee River below Florence..

Page

26

26

Table 13. Bridges across Clinch River and tributaries.

Table 14. Commercial statistics of Clinch River...

Table 15. Bridges across Holston River and tributaries.

Table 16. Commercial statistics of French Broad River.

Table 17. Bridges across Little Tennessee River and tributaries.

Table 18. Commercial statistics of Hiwassee River...

Table 19. Clinch River gage records...

Table 20. Holston River gage records..

Table 21. French Broad River gage records.

Table 22. Little Tennessee River gage records.

Table 23. Hiwassee River gage records.

Table 24. Tennessee River (upper section) gage records.

Table 25. Tennessee River (middle section) gage records.

Table 26. Tennessee River (lower section) gage records.

Table 27. Precipitation in or near drainage basin of Clinch River.

Table 28. Precipitation in or near drainage basin of Holston River..

Table 29. Precipitation in or near drainage basin of French Broad River.

27

33

34

34

39

40

43

47

51

56

88

89

90

92

94

95

97

100

102

102

103

103

103

103

104

Table 30. Precipitation in or near drainage basin of Little Tennessee River...
Table 31. Precipitation in or near drainage basin of Hiwassee River.
Table 32. Precipitation in valley of main Tennessee River (upper section)..
Table 33. Precipitation in or near drainage basin of Elk River...
Table 34. Precipitation in valley of main Tennessee River (middle section)...
Table 35. Precipitation in or near drainage basin of Duck River...
Table 36. Precipitation in valley of main Tennessee River (lower section)..
Table 37. Summary of precipitation in drainage basin of Tennessee River..
Table 38. Occurrence of high and low water stages on the Tennessee River at

Florence, Ala., 1872-1920...

Table 39. Minimum recorded flow of tributaries of Tennessee River.
Table 40. List of earthquakes in Southern Appalachian Region.....

104

104

104

105

106

108

115

Appendix A. Report of Warren R. King, district engineer, United States
Geological Survey, on stream flow measurements..

167

Appendix B. Report of Assistant Engineer Gerard II. Matthes on flood profiles..

173

Appendix C. Report of Assistant Engineer Gerard H. Matthes on level datums

Appendix D. Report by Maj. Harold C. Fiske, Corps of Engineers, on map

making by combined use of aerial photographs and ground survey methods. Requirements of Map of Tennessee River Survey...

179

180

Appendix E. Report by Maj. Harold C. Fiske, Corps of Engineers, on silt deposits in the Tennessee River..

189

Appendix F. Extract from War Department Document 1039, by Col. C. Keller,
Corps of Engineers, December 13, 1919..

190

Appendix G. Report of Assistant Engineer Gerard H. Matthes on cost estimates..
Construction cost...

Costs of hydroelectric and steam-electric power compared.

195

31531-APP-27-66

Page

Appendix H. Report of State Geologist Wilbur A. Nelson on examination

made of Coulter shoals as location for dam site..

198

Appendix J. Report of Assistant Engineer Gerard H. Matthes on power avail-

able at Coulter shoals..

198

Table 1. Expenditures for stream gauging in Tennessee Basin..

169

Table 2. Status of stream gauging in Tennessee Basin....

170

Table 3. Check distances used in construction of topographic map of Tennessce

River Valley of 1921-22......

188

Table 4. Fuel cost of steam-generated electric power.

196

Table 5. Operating and maintenance costs of six steam plants of modern design

in Massachusetts...

197

Table 6. Total annual production cost of steam-electric and hydroelectric

utility plants in the superpower zone...

197

Table 7. Low water flow at Coulter shoals for period 1900-1921..

Table 8. 24-hour power at 80 per cent efficiency available at Coulter Shoals

site with permanent crest of dam at elevation 799 above mean sea level....

200

202

LETTER OF TRANSMITTAL

WAR DEPARTMENT, Washington, May 18, 1922.

The SPEAKER OF THE HOUSE OF REPRESENTATIVES.

MY DEAR MR. SPEAKER: I have the honor to transmit herewith a letter from the Chief of Engineers United States Army, of the 16th instant, together with reports dated January 15, 1921, and March 15, 1922, by Maj. Harold C. Fiske, Corps of Engineers, on preliminary examination and a partial survey, respectively, of Tennessee River and tributaries, North Carolina, Tennessee, Alabama, and Kentucky, authorized by the river and harbor act approved June 5, 1920.

Sincerely yours,

JOHN W. WEEKS,
Secretary of War.

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