that the First Aqueduct was complete and the San Vicente Reservoir began to receive its water. Dam raising As part of the SDCWA's $1 billion Emergency Storage Project which began in 2000, the San Vicente Dam Raise increased the height of the dam by to . This in turn will more than double the reservoir's original capacity of by increasing it to a total of . The original designers had predicted that raising the dam would be necessary in the future and positioned the dam in such a way that its height could be increased by as much as 120 ft along with ensuring its grout curtain was extended for a larger foundation. In 2006, the SDCWA awarded Montgomery Watson Harza (MWH) with a $20.4 million contract which included developing the raised-dam's design and other engineering services during construction. Construction on the roller-compacted concrete (RCC) dam raise is being managed by Black & Veatch and Parsons and was done in specific stages. The first stage began in June 2009 and consisted of preparing the dam's foundation and was completed in 2010 after which the dam raise began. The construction reached a milestone in October 2012 as the dam reached its final height of 337 feet. The new dam is 117 feet higher than the old one, the tallest dam raise in the United States. The dam raise was completed in early 2014. The reservoir's replacement pipeline will last until 2015. The reservoir, which was closed for recreation when construction began, will reopen between 2014 and 2017 depending on when it reaches normal levels. The San Vicente Dam Raise itself was estimated to cost $568 million and will be complemented with a new pumping facility and the San Vicente Pipeline which will connect the San Vicente Reservoir to the Second San Diego Aqueduct. The RCC raised-dam will be the tallest dam raise in the United States along with the tallest of its type in the world. See also List of reservoirs and dams in California Lower Otay Reservoir Saluda Dam References External links San Diego County Water Authority – San Vicente Dam Raise San Diego County Water Authority – Emergency Storage Project Live Construction Web Cams: Topside, Downstream Dams in California Buildings and structures in San Diego County, California Gravity dams United States local public utility dams Dams completed in 1943 Historic American Engineering Record in California Roller-compacted concrete dams 1943