Field Trip Lab Write-up

Field Trip Lab Write-up - Bryce DaFonte 10/29/10 BRAE 236...

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Bryce DaFonte 10/29/10 BRAE 236 Field Trip Lab Write-up During the lab on Wednesday October 20, 2010 the BRAE 236 lab departed Cal Poly campus for an all day field trip of tours to various farms, ranches, facilities and locations around Monterey and Salinas County. We made several stops throughout the day, and this write-up is recreated from raw notes that we as students were required to write down at each of these locations. The raw notes that are attached to this report have much value because we finished numerous interesting sites, and writing this report would be close to impossible without them. The first stop on our journey was to the Monterey County Water Resource Agency located at Lake Naciemento in Atascadero, Ca. The lake, which was completed in 1957 and has a 378,000 AC-ft capacity, is located behind the Naciemento Dam. The lake is a nice, local water supply, and years again both the Northern part of California and Southern part of California filed for water rights to obtain this water supply. The water usage was divided up, and the section from San Luis Obispo and down to the southern part of San Luis Obispo County currently receives 17,500 AC-ft of water per year. Naciemento Dam, Figure 1 shown above, is an inflatable dam, or also known as a crest dam. This type of crest dam provides flood control by allowing 17 more feet of water in the reservoir to keep the storage section free. This technique provides safety precautions for the surrounding cities. The Naciemento Water Project involved the surrounding San Luis Obispo County cities and had a capital cost of over $176 million. At first, this priced seemed outrageous and not worth the money, but then a drought happened, and cities changed their minds. The project station, Figure 2 shown to the right, mainly consists of an intake structure that pumps the water up from the reservoir and out to the pipelines that go to the surrounding cities. The Intake structure has three separate pump stations with four 500 hp pumps at each station. There are three tanks to combine to a total of 2 million gallons of water. There are 45 miles of pipeline total, with the pipeline ranging from 36” diameter to 12” diameter. The breakdown cost of the total $176 million for the project is as follows: 1%=Preliminary Engineering, 5%=Environmental Items, 6%=Design, 2%=Write-away costs, 85%=Construction.
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The second stop on the tour was at a vineyard where Gonzalez Irrigation provides irrigation lines. Gonzalez Irrigation is a full service company, which means they design, order, and install their products. They work mainly with row crops and vineyards. Jeff Rianda talked to us about the various types of irrigation systems with drip and sprinkler types at the said vineyard. A dual irrigation system with drip emitters for irrigating and sprinklers for frost control systems. The reason they do not use sprinklers for irrigating is that it is too much work to have to take down the sprinklers when it is time to harvest, because if left out they take the chance
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This note was uploaded on 11/18/2011 for the course BRAE 433 taught by Professor Styles during the Fall '10 term at Cal Poly.

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Field Trip Lab Write-up - Bryce DaFonte 10/29/10 BRAE 236...

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