Historic Lake Hemet Dam

Historic Lake Hemet Dam (HMYPW)

Location: Mountain Center, CA 92561 Riverside County
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Country: United States of America
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N 33° 40.198', W 116° 40.485'

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Construction on Lake Hemet Dam began in 1891 and was completed four years later on October of 1895. It stood at 122.5 feet and was the largest solid masonry dam in the world. A title it held for sixteen years.

Building of the dam itself was not the only engineering feat of its builders. Prior to building the dam a road from Hemet to Garner Valley had to be built so supplies and equipment could be taken to the damsite. In some spots the steep winding road had grades up to 18 percent. The reservoir area had to be cleared of trees and one million board feet of lumber from those trees was used for the construction of buildings, forms for construction, flumes and scaffolding. Much of the dam was comprised of granite stones weighing between 5 and 15 tons each and were quarried from the surrounding bluffs. The thousands of stones used were secured by Portland Cement imported from Belgium.

Reservoir capacity was increased in 1923 when the Lake Hemet Water Company increased the height of the dam by 12.5 feet, raising the dame to its present 135 feet.
Series This marker is part of the E Clampus Vitus series
Marker Number117
Year Placed2005
Placed ByPlatrix Chapter No. 2 and Billy Holcomb Chapter No. 1069 of the Ancient and Honorable Order of E Clampus Vitus
Marker ConditionNo reports yet
Date Added Saturday, October 11th, 2014 at 8:35pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)11S E 530151 N 3725610
Decimal Degrees33.66996667, -116.67475000
Degrees and Decimal MinutesN 33° 40.198', W 116° 40.485'
Degrees, Minutes and Seconds33° 40' 11.88" N, 116° 40' 29.10" W
Driving DirectionsGoogle Maps
Area Code(s)760
Closest Postal AddressAt or near 56570 State Hwy 74, Mountain Center CA 92561, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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