15. 9-inch Parshall Flume -- W.E. Code, Civil Building Campus

Discharge tables and calibration data gathered for the 9-inch Parshall flume

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16. Specifications Metal Improved Venturi Flumes -- April 1929, 3-6-9 and 12-inch

Drafts of specifications for 3-6-9 and 12-inch metal improved Venturi flumes and related correspondence as well as a set of specifications for corrugated metal pipe culverts

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2016-03-21
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17. Data for Indicating Charts

Discharge tables and other data gathered from several sizes of flumes

2016-03-21
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18. Nine Mile Ditch -- Higbee, Purgatory River

Bills of material, plans, and notes concerning the installation of a 6-foot improved Venturi flume in Nine Mile Ditch at the Purgatoire River

2016-03-21
2016-03-21

19. Memo -- Highland Ditch, Purgatory River near La Junta, Colo.

Memo and plans concerning the installation of a Venturi flume and altering a dam and headgate for the Highland Canal

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2016-03-21
2016-03-21

29. Vortex Tube Sand Trap Gageby Wasteway, Fort Lyon Canal -- August 1933

Plans and calculations for a vortex tube sand trap at the Gageby Wasteway, Fort Lyon Canal, and manuscript for "Vortex-Tube and Riffle-Deflector Sandtraps" by Ralph Parshall

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2016-03-21
2016-03-21

30. Measuring Structures, Riverside and Empire Reservoir Inlets -- Jan. 1933

Memoranda, notes, plans, and photograph concerning discharge measurement from Riverside Reservoir (Bijou Irrigation Company) and Empire Reservoir (Riverside Irrigation District) inlets

2016-03-21
2016-03-21

31. Trout Creek Project, Forest Service, August 1933

Plans and draft memorandum, "Memorandum Relating to the Emergency Conservation Soil Erosion and Flood Control Project in Trout Creek Colorado, August 1933," proposing the construction of barriers to reduce scour and erosion in mountain streams

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2016-03-21

32. Baca Ditch Trap, Feb. 1934 -- Buffalo Canal Vortex Tube Sand Trap, May 1933

Correspondence, notes, maps, and plans related to the installation of a sand trap on the Buffalo Canal near Holly, Colorado, and the Baca Canal near Trinidad, Colorado

2016-03-21
2016-03-21

20. Fort Morgan Canal 20-foot Improved Venturi Flume -- March 1930

Notes and plans for a 20-foot improved Venturi flume in the Fort Morgan Canal

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21. Calibration of Taylor 3-inch Flume

Correspondence, data charts, and a memo explaining the 3-inch special Venturi flume's usefulness to water measurements in steep mountain streams

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22. Moffat Water Tunnel, 15-foot Improved Venturi Flume, East Portal -- August 1930

Memoranda, notes, plans, and a letter concerning the installation of a 15-foot improved Venturi flume at the East Portal of the Moffat Tunnel

2016-03-21
2016-03-21

24. Oxford Farmer's Canal, Arkansas Valley

Rating table and notes for the installation of a 10-foot Venturi flume in the Oxford Farmers' Canal

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2016-03-21
2016-03-21

25. Alta Irrigation District, 15-foot Concrete Flume

Profile showing bottom bank and high water at the location of a proposed 15-foot Parshall flume in the Travers Canal, Alta Irrigation District

2016-03-21
2016-03-21

26. Whitney Ditch near Windsor

Plans and notes concerning modifications to a rating flume in Whitney Ditch near Windsor, Colorado

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27. Fort Bent Canal near Lamar, Colo.

Notes and plans related to a 10-foot concrete Venturi flume in the Fort Bent Canal near Lamar, Colorado; includes 1907 map of Otero County

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2016-03-21
2016-03-21

28. Special Tests of Variations of Parshall Flume Bellvue Laboratory, summer and fall 1932

Report to the U.S. Department of Agriculture, Bureau of Agricultural Engineering, "Progress Report on Tests of Modified Parshall Measuring Flumes," including photographs, plans, and data relating to several different sizes of Parshall flumes

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2016-03-21
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33. Lytle Creek Project, 15-foot Parshall Measuring Flume -- April 1932

Correspondence, notes, data tables, maps, and plans related to the installation of a 50-foot flume as part of the Lytle Creek flood control project

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2016-03-21
2016-03-21

34. 3-inch Improved Venturi Flume -- June 1930

Plans, data, charts, and drafts related to tests of weirs and flumes, and U.S. Department of Agriculture Farmers' Bulletin No. 1683, "Measuring Water In Irrigation Channels" (1932)

2016-03-21
2016-03-21

35. 15-ft Weir Calibration, Bellvue -- 1932, 1926

Discharge data tables for a 15-foot rectangular weir and a report, "A New Calibration for Small Heads over the 15-foot Weir in the Bellvue Laboratory"

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2016-03-21
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36. Upper Platte and Beaver Canal, 12-Foot Flume -- March 1933

Notes and plans for a 12-foot flume for the Upper Platte and Beaver Canal

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37. Colorado Springs Sewer System, 6-Inch Flume, February 1933

Notes and plans for a 6-Inch Parshall flume to be installed in Colorado Springs Sewer System

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38. Modified Parshall Measuring Flume for 12-inch Pipe -- March 1932

Notes, plans, data, and memo, "Memorandum Concerning Tests Made on a Modified Form of the Parshall Measuring Flume Adapted to Flow in Pipe Lines: Hydraulic Laboratory, Ft. Collins, March, 1932"

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2016-03-21
2016-03-21

39. Special Tests on 90 Degree Notch Weir - heads .05 to .12 foot, Hydraulic Laboratory...

Notes and data for tests done on a ninety-degree notch weir at the Hydraulic Laboratory in Fort Collins

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2016-03-21
2016-03-21

42. Cost of Sand Sluicing in Clear Creek Valley -- 1931, Memo prepared for Mr. McCroy -...

Drafts, notes, and data for "Memorandum Concerning the Cost of Sluicing Sand from Canals Diverting from Clear Creek." Ditches included in analysis were Farmers' High Line Ditch, Welch Ditch, Agricultural Ditch, Lee Stuart and Eskins Ditch, Lower...

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2016-03-21
2016-03-21