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On This Day | August 3

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2014
2014 Ludian earthquake

The 2014 Ludian earthquake struck Ludian County, Yunnan, China, with a moment magnitude of 6.1 on 3 August. The earthquake killed at least 617 people, injuring at least 2,400 others. As of 5 August 2014, 112 people remain missing. Over 12,000 houses collapsed and 30,000 were damaged. According to the United States Geological Survey, the earthquake occurred 29 km (18 mi) WSW of Zhaotong city at 16:30 local time (08:30 UTC).

1985
Penang Bridge opened

The Penang Bridge is a 13.5-kilometre (8.4-mile) dual carriageway toll bridge and controlled-access highway in the state of Penang, Malaysia. The bridge connects Perai on the mainland side of the state with Gelugor on the island, crossing the Penang Strait. The bridge was the first and, until 2014, the only road connection between the peninsula and the island. The bridge is the second-longest bridge over water in Malaysia, with a length over water of 8.4 kilometres (5.2 miles).

1969
San Diego-Coronado Bridge opened

The San Diego-Coronado Bridge, locally referred to as the Coronado Bridge, is a prestressed concrete/steel girder bridge fixed-link, crossing over San Diego Bay in the United States, linking San Diego with Coronado, California.

1933
Castlewood Dam collapse

The Castlewood Dam in Castlewood Canyon, built in 1890, suffered an utter collapse following heavy rains at 1 am on 3 August 1933, resulting in a 15-foot wall of water rushing down Cherry Creek to Denver, some 15 miles away. Warnings to the city by 4 am allowed most people to move out of the way of the flood waters.

1921
Ohio Stadium broke ground

Ohio Stadium is an American football stadium in Columbus, Ohio, on the campus of Ohio State University. The stadium opened in 1922 as a replacement for Ohio Field and had a seating capacity of 66,210. Seating capacity gradually increased over the years and reached a total of 91,470 possible spectators in 1991. Beginning in 2000, the stadium was renovated and expanded in several phases, removing the track and adding additional seating, which raised the capacity to 101,568 by 2001 and to 102,329 in 2007. In 2014, additional seating was added in the end zone, raising the official capacity to 104,944. Another renovation to add more luxury suites began in 2017 and will eventually lead to a decrease of 2,600 seats. It is the largest stadium by capacity in the state of Ohio, and the third largest on-campus football stadium in the United States.

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Engineering Properties and Laboratory Testing

Aug, 21, 2026 | Education

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South Korea city hit by almost a metre of rain and deadly landslide

Aug, 18, 2026 | News

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GroutForce™ Displacement Piles: Design Methods, Test Results & HeliCAP® Engineering Workshop

Aug, 20, 2026 | Event

Discover how GroutForce™ Displacement Piles provide a high-capacity foundation solution by utilizing...

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Granada earthquake injures three and disrupts historic city sites

Aug, 18, 2026 | News

A shallow earthquake has struck southern Spain, injuring at least three people and damaging building...

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Century-old New York rail tunnel rebuilt after corrosive flood damage

Aug, 17, 2026 | News

Amtrak has reopened Line 2 of the East River Tunnel in New York, completing the first major phase of...

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Reinforcement and Stabilization Mechanisms

Aug, 18, 2026 | Education

Tensile Reinforcement The most fundamental mechanism is tensile reinforcement. As the soil mass ten...