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2. Tainter gate - Wikipedia

   en.wikipedia.org/wiki/Tainter_gate

   Pressure forces on a submerged body act perpendicular to the body's surface. The design of the Tainter gate results in every pressure force acting through the centre of the imaginary circle of which the gate is a section, so that all resulting pressure force acts through the pivot point of the gate, making construction and design easier.

3. Wicket gate - Wikipedia

   en.wikipedia.org/wiki/Wicket_gate

   A wicket gate is also used for a stand-alone gate that provides convenient secondary access, for example to the rear of a walled park or garden. The cricket term "wicket" comes from this usage. [7] "The Wicket Gate" is an important feature in John Bunyan's 17th-century Christian allegory The Pilgrim's Progress. As the first stage of the journey ...

4. Lake Anna - Wikipedia

   en.wikipedia.org/wiki/Lake_Anna

   The dam's spillway is located in the center of its body and is 200 feet (61 m) wide, containing three main 40-foot-wide (12 m) and 30-foot-high (9 m) radial gates. Two smaller 8.5-foot (3 m) wide and tall gates on the outer edges of the spillway section maintain normal discharges. Normal elevation for the reservoir is 250 feet (76 m). [4]

5. Rod (unit) - Wikipedia

   en.wikipedia.org/wiki/Rod_(unit)

   The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.

6. Cattle grid - Wikipedia

   en.wikipedia.org/wiki/Cattle_grid

   Grids differed in length from 2.4 to 9.1 metres (7 + 3 ⁄ 4 to 30 ft) and in width from 1.0 to 3.0 metres (40 to 120 in), while the pits beneath grids were 0.0 to 2.5 metres (0 to 98 in) deep. [ 6 ] Cattle grids, as they are called in Great Britain , Ireland , and South Africa , are known by a wide variety of other names in other parts of the ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. The start of the Palisades and Eaton fires: 24 hours that ...

   www.aol.com/news/start-palisades-eaton-fires-24...

   At 4 feet by 6 feet, the frame was too big to fit in the car. (Hours too late, he realized that he could have cut the canvas from the frame.) Seagle's last stop was the towering Moreton Bay fig ...

9. McClellan–Kerr Arkansas River Navigation System - Wikipedia

   en.wikipedia.org/wiki/McClellan–Kerr_Arkansas...

   Each lock measures 110 feet (34 m) wide and 600 feet (180 m) long, the standard size for much of the Mississippi River waterway. Standard jumbo barges, measuring 35 by 195 feet (59 m), are grouped 3 wide by 3 long, with a tug at center rear, to form a barge tow which can be fit into a lock. Larger barge tows must be broken down and passed ...