OCR Text |
Show 499 Department of Agriculture share its flood-control jurisdiction over federal investigations of watersheds, and measures for run-off and water-flow retardation and soil-erosion prevention on watersheds.22 In addition, both the Army Engineers and the Bureau of Reclamation have duties requiring collection and use of data relating to stream flow. Thus, authorized surveys of navigable streams by the Army Engineers must include "such stream- flow measurements and other investigations of the watersheds as may be necessary for preparation of plans of improvement and a proper consideration of all uses of the stream affecting navigation."23 Since 1871, the Secretary of the Army has been directed to have "water gauges established, and daily observa- tions made of the rise and fall" of the Mississippi River and its tributaries.24 And of course a wide variety of stream- flow data was necessary in the conduct of examinations and surveys upon which "308 Reports" are based.25 Furthermore, additional studies and investigations were authorized by Con- gress for the express purpose of taking into account important changes in "additional stream-flow records." * All flood-con- trol examinations and surveys by the Army Engineers must include "a comprehensive study" of the watershed relating to, among other things, the probable effect upon any navigable water, the possible economical development and utilization of power, and other properly related uses.27 Relevant also is the 1938 provision for establishment, operation, and maintenance by the Weather Bureau of a current information service on precipitation, flood forecasts and warnings, in connection with authorized flood-control activities by the Army Engineers.28 22 Act of June 22, 1936, § 2, 49 Stat. 1570, as amended, 33 U. S. O. 701b. See also supra, pp. 316-317,374-377. M Act of June 25, 1910, § 3, 36 Stat. 630, 669, 33 U. S. O. 546. * It. S. §5252, from Res. of February 21, 1871, No. 40, 16 Stat. 598, as amended, 33 U. S. C. 4. 28 See supra, pp. 92-93. 26 Act of August 30,1935, § 6, 49 Stat. 1028,1048. 27 Act of March 1, 1917, § 3, 39 Stat. 948, 950, 33 U. S. C. 701. 88 Act of June 28, 1938, § 8, 52 Stat. 1215, 1226, 33 U. S. O. 706. See also supra, p. 146. |