Lake Berryessa Spillway Diagram
The dam impounded putah creek to create lake berryessa in the vaca mountains.
Lake berryessa spillway diagram. Measuring at approximately 72 feet wide and 245 feet long the spillway is known as the glory hole. It s essentially a giant concrete funnel sticking up out of the. The dam impounded putah creek to cover the former town of monticello and flood berryessa valley to create lake berryessa the second largest lake in california the capacity of the reservoir is 1 602 000 acre ft 1 976 000 dam. The similarities included that it was a man made body of water the dam was rather large and it had a spillway.
Lake berryessa hole acts as a giant drain for the monticello dam in napa valley california. Woman sucked into lake berryessa spillway wednesday march 12 1997 napa emily schwalek 41 of davis was killed sunday when she was sucked down a spillway at the monticello dam at lake berryessa. It contains 326 000 cubic yards 249 000 m of concrete. Since the early 1960s this reservoir has provided water and hydroelectricity to the north bay region of the san francisco bay area.
It routes excess water from the lake into a 72 foot diameter entrance structure known as the glory hole down to a 28 foot wide exit pipe. Lake berryessa is currently the seventh largest man made lake in california water from the reservoir primarily supplies agriculture in the sacramento valley downstream. It is generally constructed at one end of the dam or separately away from the dam in a natural saddle in a bank of the river. The spillway which drops straight down more than 200 feet is known as the glory hole.
Chute spillway is suitable for gravity dams earthen dams rockfill dams etc. There was a lake called lake oroville and it was almost the same as lake berryessa but with some minor differences. The spillway design chosen for berryessa is variously called a bell mouth a morning glory or most commonly a glory hole. The reservoir was named after the first european settlers in the berryessa.
Lake berryessa is the largest lake in napa county california this reservoir in the vaca mountains was formed following the construction of the monticello dam on putah creek in the 1950s. Monticello dam is a 304 foot 93 m high concrete arch dam in napa county california united states constructed between 1953 and 1957. This spillway was designed much differently than the one in lake berryessa.