spanish fork
nephi irrigation system

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    pipeline / pumping plant
    Spanish Fork Pipeline

    The Spanish Fork Pipeline starts at the junction of Diamond Fork Creek and the Spanish Fork River, proceeds down Spanish Fork Canyon, and ends at the existing Strawberry Valley Project (SVP) diversion structure. This reach of the pipeline is approximately 3.9 miles long and has a capacity of 510 cubic feet per second (cfs).
    For most of the distance, the alignment lies on the north side of Highway 6.


    Snell Canyon Pipeline

    The Snell Canyon Pipeline starts at the existing SVP diversion structure, proceeds down Spanish Fork Canyon along the north side of Highway 6 for approximately 1 mile and then crosses Highway 6, the railroad, and the Spanish Fork River. After crossing the river, the alignment crosses the Strawberry Power Canal, ascends about 280 feet to the bench above the Strawberry Power Canal, and proceeds westward along the bench above the power canal, the High Line Canal, and the residential development above the High Line Canal. The alignment ultimately drops back down to the High Line Canal right-of-way east of Salem, where the reach ends. This reach of pipeline is approximately 3.5 miles long and its capacity ranges from 510 to 435 cfs.


    Salem Bench Pipeline

    The Salem Bench Pipeline would replace the High Line Canal from the end of Snell Canyon Pipeline to Turnout SU4 east of Payson. The Salem Bench Pipeline is approximately 5.8 miles long. Its capacity would be 435 cfs.


    Payson Pipeline

    The Payson Pipeline starts at turnout SU4 and replaces the High Line Canal, past Payson around the foot of Rocky Ridge, and then southward along the High Line Canal to turnout SU6, located where the canal crosses Route 6. The pipeline is approximately 4.5 miles long. Its capacity would decrease from 435 cfs below Turnout SU4 to 355 cfs above Turnout SU6.


    Santaquin Pipeline

    The Santaquin Pipeline starts at turnout SU6 and runs southerly along the east side of Route 6 to Santaquin, and then continues southerly on the east side of Interstate 15 to Turnout EJ1, located approximately at the Utah County Line. The pipeline would be approximately 6.2 miles long. Its capacity would decrease from 225 cfs below Turnout SU6 to 185 cfs above Turnout EJ1.


    Mona Pipeline

    The Mona Pipeline continues on the east side of Interstate 15 until it is due east of the city of Mona. The Mona Pipeline would be approximately 7.1 miles long. Its capacity would decrease from 180 cfs below Turnout EJ1 to 150 cfs above Turnout EJ5.


    Juab Pipeline

    The Juab Pipeline runs south for 4.4 miles from Turnout EJ5 to Turnout EJ7, east of Interstate 15 (I-15). Its capacity would decrease from 130 cfs below Turnout EJ5 to 105 cfs above Turnout EJ7.


    Nephi Pipeline

    The Nephi Pipeline continues due south, east of I-15, to a point about 1 mile north of Nephi; then it runs west to the Union Pacific Railway tracks; south through the western edge of the city of Nephi along the railway tracks, across I-15. It ultimately ends on the northern flank of the Levan Ridge along the west side of Route 28 (at the south edge of Section 20). The Nephi Pipeline would be approximately 8.2 miles long. Its capacity would decrease from 95 cfs below Turnout EJ7 to 20 cfs above Turnout EJ14, the last turnout.


    West Mona Pumping Plant

    The West Mona Pumping Plant would serve to pump water from Mona Reservoir into a regulating pond located west and south of the Mona Reservoir dam. Water from the regulating pond would be delivered by gravity to serve approximately 1,920 acres of agricultural lands west of Mona Reservoir. The pipeline connecting the pumping plant to the regulating pond would be approximately 7,500 feet long and 24 inches in diameter. Probable pipe materials include mortar-lined and -coated steel. The regulating pond, south of the Mona Reservoir dam, would be an earthen pond approximately 10 feet deep and 250 feet on a side at the water line. The pond would be fenced and lined with clay, concrete, or plastic.