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Show I The WyCal Pipeline ... I Crossing the Wasatch Fault I One question people ask about the D. Model fault and design. The fault I I WyCal project, the natural gas pipeline we crossing will be carefully modeled using I I plan to build from Wyoming to California, state-of-the-art finite-element analysis. I I is: Will it withstand a major earthquake in This model will predict the forces and the I I the Salt Lake City area? strength of the pipeline during an earth- I I The question is a good one, and we assure quake. Knowing that nature does not I I you that it will. always act exactly as predicted, a margin of I I safety is added to arrive at a conservative I I The Wasatch Fault design. This all occurs before a shovel of I I The Wasatch Fault Zone runs north and dirt is lifted or a piece of pipe is laid. I I south along the western foothills of the E. Retain good consultants. The I I Wasatch Mountains. Overall it ,is services of a number of specialists and I I approximately 230 miles in length and can consultants have been retained to assist in I I be separated into ten identifiable segments. these designs. Chen Northern, Inc., of Salt I I An earthquake is generated by movement Lake City is very familiar with the I I along one of these segments. Current conditions and concerns of the area. EQE I I research indicates that each of these Engineering of Costa Mesa, California, I I segments moves independently from the has also been retained to use their expertise I I others gained from construction over faults in I I The WyCal Pipeline will cross the north California, Alaska, Asia, and Europe. I I end of the Salt Lake City segment. This They have helped design facilities for I I segment runs from Bountiful to the Pacific Gas and Electnc, Anchorage I I Transverse Mountains at the south end of Municipal Light & Power, Sacramento I I the Salt Lake Valley. Based on the Municipal Utility District, San Diego Gas I I maximum fault movement of 10 feet, the and Electric, and the City of San I I resulting earthquake would have a Francisco. I I magnitude of 7 and a reoccurrence interval . ,.r . I I 0f 2 600 years. In addition to the Wasatch The California Experience I I Fault, the WyCal Pipeline will cross traces Design techniques to be used in the I I of the West Valley Fault. Projected construction of WyCal utilize the most I I movements of this fault system are of much advanced design technology gathered from I I smaller magnitude, but the same design specialized engineers worldwide. If it were I I techniques will be used. true that natural gas pipelines cannot I I safely cross fault zones, California would I I The Solution be without natural gas service. A related I I In our pipeline design for the Wasatch fact: During the 1989 earthquake in I I Fault a worst-case earthquake is being northern California with a magnitude of I I used for the design criteria. However, the 7. large-diameter transmission lmes I I higher-probability, lower-magnitude move- to the WyCal Pipe me were I I ments are also being included in the design virtually undamaged One small leak was I I for crossing all fault areas. The following found in a pipe weld, and it was repaired I I steps are being taken to assure the safety of Wlth?ut tokin that PlPehne out of I I the pipeline and also the safety of the service. I TTuTchase high q-aHty pipe. Fault Crossings Are Safe I Pipelines are extremely strong. Modern In Salt Lake City and surrounding I I steel making procedures produce steels communities, faults are crossed in hundreds I I which are ductile and free of defects. of places by natural gas, water, and other I I B. X-ray welds. 100 percent of the pipelines including some natural gas I I pipeline welds in the fault zones will be lines almost as large as the WyCal Pipeline. I I x-rayed to assure that the pipeline is Compared with those, much more effort is I I without any defects and is a strong being made to assure that the WyCal I I continuous structural member. Pipeline will be safe. I I C. Use special ditch design. A ditch If you have questions or need a speaker I I designed with sloping sides and filled with to discuss the WyCal project with your I I soils that will not compact will allow the civic group or service organization, give us I I pipeline to move with the earth, without a call or write. We want to work with I I rupture. you. I I WYOMING CALIFORNIA PIPELINE I I We believe it is good business to be a good neighbor. I I WyCal Pipeline Company; 205 West 700 South, Suite 301; Salt Lake City, UT 84101; (801) 575-5263. I r n DD0XS I gjj-e-.MOMS ARE GREAT ffl MAIN OUR BOOK! y "Kf FREE GIFT I 3 X- $ WRAPPING S FAMILY CENTER S POINTS MALL (W FT. UNION BOUNTIFUL PJ l 2ION BOOK STORE PS |