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For 20 years, it served as the only reservoir serving the city of Columbus' drinking water needs. [3] Griggs Dam is a gravity dam with a 500-foot-long (150 m) curved concrete spillway. Its height is only 35 feet (11 m), but it forms a reservoir almost 6 miles (9.7 km) long with a 1,200,000,000-US-gallon (4.5 × 10 9 L) capacity.
Brake Slope & Soak: Contains concrete roadways with grades of 12, 15, 20, and 30% for brake holding, clutch, differential, and durability testing. The brake soak is a 25-foot wide circular water trough containing a 5% slope on the outer edge to allow immersion of only half the vehicle's braking system.
The spillway is located high on the right abutment with the raceway dropping off in front of it to the stilling basin below. Control is provided by three 34 ft (10 m) by 25 ft (7.6 m) tainter gates supported by 8 ft (2.4 m) wide concrete piers resting on concrete ogee sections. The ogee sections have a crest elevation of 878 feet (268 m) and ...
This reservoir is a major water source for the city of Columbus, Ohio. It holds 20.8 billion US gallons (79,000,000 m 3) of water and has a surface area of 3,272 acres (13.24 km 2), or about five square miles. Construction began during 1953 due to the increased water demand of post-war Columbus.
The dam forms O'Shaughnessy Reservoir, which is a major source of drinking water for the city of Columbus. It was completed in 1925 following recommendations of then superintendent Jerry O'Shaughnessy (for whom the dam was named). [2] [3] At the time, the reservoir was described as "the finest inland waterway in the United States."
In 1985, the Kaufmans sold the 2,000-acre (8.1 km 2) quarry to investors who filled in and developed the quarry for residential use, including Marble Cliff Commons [6] [2] [3] apartments and Marble Cliff Crossing, a 100 single-family and 60 double-family subdivision built between 1998 and 2003. [7]
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