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Unformatted text preview: University of California, Berkeley Professor Ken Johnson Civil Engineering 70 Engineering Geology Civil Engineering 70 Lecture 28 12/5/07 CE70 Final Logistics 120 Latimer 12:30 3:30pm December 19, 2007 Bring Protractor Calculator Ruler (with cm) Rock/Mineral Sheets Pickup Papers Field Trip Memo In front of Johnsons Office Cross Section In Marias Office Hours California Water System Levee System built in 1860 to 1960 o San Joaquin River used to be a huge marsh But federal government installed levees and drainage for agriculture But creates flood risks o System protects a huge amount of state agriculture capital o Deferred Maintenance Levee Channel Erosion Sedimentation Build up Vegetation o Sacramento only has a 85 year flood protection Omaha and New Orleans has 250 year flood protection Many other cities like Tacoma and St. Louis has a 500 year flood protection o Increase the capacity of a levee by installing a slurry wall and increasing the height of the...
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- Fall '07
- Civil Engineering