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,
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,
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.
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