P A Yeomans-Keyline at Carisbrooke Station-Black & White Elevated Photos (Douglass Baglin Pty Ltd) 17 Mar 1971 Isles (Secondary Valley) Dam (upper left) and Boards (Lower Primary Valley) Dam (lower right) after a wet season storm. View to the North-East. Isles Dam (far left) Details on page 3 Meteor Creek (mid left) Braided stream flows from right to left Yeomans (Contour Diversion) Channel (near left) Length: 1.5 miles (2.4 km) from creek to dam Flow Rate: 27,000,000 imp. gal/hr (122.7 ML/h) Water pools in this channel after ‘the run’ & this Contour Water Line shows that the ‘flat land’ is dominated by ridges (ie ‘ridge country’) Yeomans Channel extends to back of dam but now floods out Boards Dam (near left) Details on page 2 Barnham (Contour Irrigation) Channel (right angled curve at mid left) supplies water to the Irrigation Bays (far left) Bywash (the ‘flat land’ spillway through the gap in the main and return walls) severely erodes Boundary confinement & return walls (near left) Photos scanned and converted in 2014 to a document by Geoffrey Booth for Keyline Archive. www.youtube.com/channel/UCUPgPJZAlkxt207sxcdp4DQ/about P A Yeomans-Keyline at Carisbrooke (25 min) 1990 www.youtube.com/watch?v=W72y_us2Sbg Source of Photos: Charlie Phillott Page 1 of 3
P A Yeomans-Keyline at Carisbrooke Station-Black & White Elevated Photos (Douglass Baglin Pty Ltd) 17 Mar 1971 Boards (Lower Primary Valley) Dam & Barnham (Contour Irrigation) Channel to the Irrigation Bays after a wet season storm. View to the South. Boards Dam (at left) Volume: 330 ac ft (407.0 ML) Area: 100 ac (40.5 ha) Bywash Width: 600 ft (182.9 m) Volume of Dam Wall: 6,000 yd続 (4,587.3 m続) Length of Dam Wall (with road on the crest): 1,200 ft (365.8 m) Max. Depth of Dam: 8 ft (2.4 m) Lockpipe Diameter: 2 ft ID (0.6 m ID) Lockpipe Flow Rate: 2,000,000 imp. gal/hr (9.1 ML/h) Bywash severely erodes Barnham Channel (stretching left) Length: 500 yds (457.2 m) Flow Rate: 2,000,000 imp. gal/hr (9.1 ML/h) Irrigation Area (left): 160 ac (64.8 ha) Water-Gate Flow Rates: 1,000,000 imp. gal/hr (4.5 ML/h); 2 Gates/bay Steering Banks (left) Made by bulldozer side casts and bank lateral earth stops on each side
Original Reference: Yeomans, P.A. (1971). The City Forest. (pp. 82-84, para. 3-14) Sydney, NSW: Keyline Publishing See also: P A Yeomans-Keyline at Carisbrooke Station (Old & New Lockpipe Designs and Dam Minimum Levels) 1970 P A Yeomans-Keyline at Carisbrooke Station (New Irrigation Bay Steering Banks & Plow Pattern) 1974 and P A Yeomans-Keyline at Carisbrooke Station (Diversion & Irrigation Channels to Irrigation Bays) 1990 Photos scanned and converted in 2014 to a document by Geoffrey Booth for Keyline Archive. www.youtube.com/channel/UCUPgPJZAlkxt207sxcdp4DQ/about P A Yeomans-Keyline at Carisbrooke (25 min) 1990 www.youtube.com/watch?v=W72y_us2Sbg Source of Photos: Charlie Phillott
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P A Yeomans-Keyline at Carisbrooke Station-Black & White Elevated Photos (Douglass Baglin Pty Ltd) 17 Mar 1971 Isles (Secondary Valley) Dam (in the far distance) & the Homestead (in the middle distance). Telephoto view from the tableland to the North-West.
Tulmur Hills (at left) Williams Creek (at left) Main water course trees; flows from right to left Isles Dam (at left) Volume: 1,250 ac ft (1,541.9 ML) Area: 250 ac (101.2 ha) Bywash Widths (both ends): 600 ft (182.9 m) Volume of Dam Wall: 40,000 yd続 (30,582.2 m続) Length of Dam Wall: 2,700 ft (823.0 m) Max. Depth of Dam: 10 ft (3.0 m) Lockpipe Diameters: 2 x 2 ft ID (0.6 m ID) Lockpipe Flow Rates: At 10 ft (3.0 m) depth, 2,100,000 imp. gal/hr (9.5 ML/h) At 5 ft (1.5 m) depth, 1,800,000 imp. gal/h (8.2 ML/h) Meteor Creek (at left) Three braided stream tributary tree lines; flows from right to left: just beyond & foreground of the homestead and in the lower foreground Original Reference: Yeomans, P.A. (1971). The City Forest. (pp. 82-84, para. 3-14) Sydney, NSW: Keyline Publishing Explanatory Reference: P A Yeomans-Keyline at Carisbrooke Station (The City Forest reference: The Desert Rainforest) 1971 See also: P A Yeomans-Keyline at Carisbrooke Station (Old & New Lockpipe Designs and Dam Minimum Levels) 1970 P A Yeomans-Keyline at Carisbrooke Station (United Graziers' Association Pamphlet-Text & Image) 1990 and P A Yeomans-Keyline at Carisbrooke Station (Functional Plan with Channel and Dam Specifications) 2014 Photos scanned and converted in 2014 to a document by Geoffrey Booth for Keyline Archive. www.youtube.com/channel/UCUPgPJZAlkxt207sxcdp4DQ/about P A Yeomans-Keyline at Carisbrooke (25 min) 1990 www.youtube.com/watch?v=W72y_us2Sbg Source of Photos: Charlie Phillott Page 3 of 3