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Provo River ProjectThe Provo River Project provides a supplemental water supply for irrigation of 48,156 acres of highly developed farmlands in Utah, Salt Lake, and Wasatch Counties, as well as an assured domestic water supply for Salt Lake City, Provo, Orem, Pleasant Grove, Lindon, American Fork, and Lehi, Utah. The key structure of the project, Deer Creek Dam, is located on the Provo River east of the project lands. Other major structures are the powerplant at the dam, the 42-mile Salt Lake Aqueduct and Terminal Reservoir, Weber-Provo Diversion Canal, Duchesne Tunnel, Murdock Diversion Dam, Provo Reservoir Canal Enlargement, Jordan Narrows Siphon and Pumping Plant, and the South Lateral. The Salt Lake Aqueduct and Terminal Reservoir make up the Aqueduct Division; all other features are included in the Deer Creek Division. PlanThe Deer Creek Reservoir stores Provo River floodwater, surplus water of the Weber River diverted by the enlarged Weber-Provo Diversion Canal, and surplus water from the headwaters of the Duchesne River diverted by the 6-mile Duchesne Tunnelevation Releases from the reservoir for the Aqueduct Division are diverted at the dam into the Salt Lake Aqueduct, which carries water to a point near Salt Lake City to supple ment the city's supply. The Provo Reservoir Canal takes water from the Provo River at the Murdock Diversion Dam, about 7 miles downstream of the storage dam. This 23-mile-long canal serves the 46,609 acres in the Deer Creek Division. The Jordan Narrows Siphon and Pumping Plant furnishes water from the Provo Reservoir Canal and Jordan River to lands on the west side of Utah Lake and the Jordan River. The South Lateral delivers water supplies from the Jordan Narrows pump to the area south of the pump and west of the Jordan River. Deer Creek Powerplant generates 4,950 kilowatts of power. Deer Creek Dam and Reservoir Deer Creek Dam is located on the Provo River about 16 miles northeast of Provo, Utah. It is a zoned earthfill structure 235 feet high with a crest length of 1,304 feet. The dam contains 2,810,000 cubic yards of material and forms a reservoir of 152,700 acre-foot capacity. The spillway is a concrete chute at the right abutment controlled by two radial gates. The capacity of the spillway is 12,000 cubic feet per second. The outlet works through the left abutment is a concrete-lined tunnel from the trashrack to the gate chamber, where two steel pipes lead to the powerplant. Releases are controlled by two tube valves. The outlet works has a capacity of 1,500 cubic feet per second. Collection System The principal features of the collection system are the Duchesne Diversion Dam, Duchesne Tunnel, Weber-Provo Diversion Dam, and Weber-Provo Diversion Canal. The Duchesne Diversion Dam is on the North Fork of the Duchesne River, about 30 miles east of Heber City, Utah. The dam is a rockfill weir, concrete-core wall structure, 23 feet high, with a weir crest length of 270 feet. The 600-cubic-foot-per-second Duchesne Tunnel, which carries water from the diversion dam to the Provo River drainage basin, is horseshoe-shaped, concrete-lined, 9.25 feet in diameter, and 6 miles long. The Weber-Provo Diversion Dam and Canal, originally a part of the Weber River Project, have been enlarged to supply water from the Weber River to the Deer Creek Reservoir on the Provo River. The dam, located 1 mile east of Oakley, Utah, is a concrete ogee overflow weir with embankment wings, and has a hydraulic height of 19 feet. The canal has a capacity of 1,000 cubic feet per second and a length of 9 miles, consisting of unlined, earth-lined, and concrete-lined sections. Aqueduct Division The principal feature of the Aqueduct Division is the Salt Lake Aqueduct, a 69-inch-diameter concrete pipeline 41.7 miles long, with a capacity of 150 cubic feet per second. Through this pipeline flows the domestic water supply for Salt Lake City. Two tunnels are a part of the aqueduct: The concrete-lined, 78-inch-diameter, horseshoe-shaped Alpine-Draper Tunnel which is 15,037 feet long; and the Olmstead Tunnel, identical in cross section with the Alpine-Draper Tunnel, but 3,614 feet long. The concrete terminal reservoir, with a capacity of 122.8 acre-feet, completes the system. Deer Creek Division Deer Creek Division structures include Murdock Diversion Dam, a concrete ogee weir structure, 22 feet high; Provo Reservoir Canal, with a diversion capacity of 550 cubic feet per second and a total length of 23 miles, consisting of unlined and concrete-lined sections; the 65-cubic-foot-per-second capacity Jordan Narrows Pumping Plant; and the South Lateral, with a capacity of 40 cubic feet per second and a length of about 4 miles. Deer Creek Powerplant The powerplant was constructed on the substructure provided during the construction of Deer Creek Dam, has two 2,475-kilowatt generators, and was placed in operation in 1958. DevelopmentEarly History The first written report concerning this territory was made by John C. Fremont in the account of his expedition of 1843. General William H. Ashley led a party of fur traders into the West from St. Louis in the spring of 1822, and in 1825 established a trading post at Utah Lake known as Fort Ashley. The Provo River and the city of Provo are said to have been named after a trapper named Provost who was in the vicinity of Utah Lake as early as 1820. In March 1849, a group went southward from Salt Lake with the intention of establishing a colony on the Provo River. The settlement, started at a place called Old Fort Field, is now within the city limits of Provo. A fort was built and crops planted: over 200 acres were plowed the first year for wheat, rye, and corn. In August 1850, settlements were made at American Fork, Lehi, and Pleasant Grove. Investigations Utah Lake supplied irrigation water for some areas in the Salt Lake Valley; however, during the drought years 1931-35, storage in Utah Lake fell from 850,000 to 20,000 acre-feet. It became apparent that construction of the Provo River Project was essential to provide an adequate water supply. The project plan resulted from extensive investigations conducted at various times after 1922 by the Bureau of Reclamation in cooperation with the Water Storage Commission of Utah. The desperate water shortage experienced by Salt Lake City in the 1930's and the consequent request to the Government for assistance in obtaining a dependable water supply for Salt Lake Valley gave rise to a concerted effort to obtain approval of the Provo River Project. The city of Provo and five other communities in Utah County, as well as Salt Lake City, all needing additional domestic water supplies, joined with the irrigation interests to sponsor the project. Authorization Construction of the project was initiated under the provisions of the National Industrial Recovery Act of June 16, 1933, and approved by the President on November 16, 1935, under the terms of subsection B of section 4 of the act of December 5, 1924 (43 Stat. 701). The Salt Lake Aqueduct was approved by the President on October 24, 1938. Deer Creek Powerplant was found feasible and authorized by the Secretary of the Interior on August 20, 1951, under the Reclamation Project Act of 1939. Construction Construction of the project began in May 1938, the first water becoming available in 1941 upon the completion of Deer Creek Dam. Construction of some features of the project was severely hampered by wartime scarcities of manpower, materials, and funds. Work on the Duchesne Tunnel had to be stopped in 1942, although construction continued on a small scale on the canal system and Salt Lake Aqueduct. In 1947, full-scale construction was resumed. Construction of features of the Aqueduct Division was started in 1939 and completed in 1951. The Deer Creek Powerplant was completed in 1958. Operating Agencies All features of the Deer Creek Division are operated and maintained by the Provo River Water Users Association. The Metropolitan Water District of Salt Lake City operates and maintains the aqueduct system. The Western Area Power Administration, CRSP Management Center, maintains Project switchyard facilities and markets the power output from the powerplant. BenefitsIrrigation A supplemental water supply has been provided for 48,156 acres of highly developed farmlands, thus assuring maturity of valuable crops. Principal crops are alfalfa, grain, peaches, apples, pears, sugar beets, and canning crops. such as sweet corn, peas. and tomatoes. Municipal and Industrial Water Municipal and industrial water service is provided for the metropolitan water districts of Salt Lake City, Provo, Orem, Pleasant Grove, Lewiston, American Fork, and Lehi. An average annual amount of 73,454 acre-feet is delivered to 343,345 people. Recreation Deer Creek Reservoir is on the Provo River about 16 miles northeast of Provo, Utah. Because a main highway crosses the dam, many visitors see the dam and reservoir during the year. The reservoir provides boating and excellent fishing in season, primarily for perch and native, rainbow, and brown trout. Two boat concessions, each with boats to rent to the public, are located on the shore of the reservoir. Camping, swimming, boating, water skiing, and other forms of recreational use have increased dramatically. The Utah State Division of Parks and Recreation has administering responsibility. A new boat launching ramp, camp, and picnic facilities have been provided. Total visitation to the reservoir during 1977 was 426,290 recreation days. Project DataLand Areas (1977) Irrigable area:
Facilities in Operation
Climatic Conditions
Settlement
Engineering Data (Water Supply)Provo Rover¹
Duchesne River
Weber River
¹ Natural flow including transmountain diversions and Salt Lake Aqueduct diversions. Storage FacilitiesDeer Creek Dam Type: Zoned earthfill Location: On the Provo River 16 miles north east of Provo, Utah. Construction period: 1938-41 Date of closure (first storage): 1941 Reservoir, Deer Creek:
Dimensions:
Spillway: Concrete crest and concrete-lined chute in right abutment, controlled by two 21- by 20-foot radial gates.
Outlet works: Concrete-lined tunnel through left abutment controlled by two 52-inch tube valves in powerplant substructure at outlet end.
Foundation: Interbedded clay, sand, and gravel overlying alternating strata of slightly broken but firm sandstone and limestone. Special treatment: Cement grout curtain beneath cutoff walls; supplemental grouting of abutments. Diversion FacilitiesDuchesne Diversion Dam Type: Rockfill weir, concrete-core wall Location: On the North Fork, Duchesne River. about 30 miles east of Heber, Utah. Year completed: 1952 Dimensions:
Sluiceway: Concrete gated structure, one 10-by 13-foot radial gate, at right abutment of dam. Headworks: Diverts directly into Duchesne Tunnel through tunnel intake at right abutment of dam.
Murdock Diversion Dam Type: Concrete ogee weir, embankment wing Location: On the Provo River, about 6 miles north of Provo, Utah. Year completed: 1950 Dimensions:
Sluiceway: Concrete gate structure, one 16- by 14-foot radial gate at left side of dam. Headworks: Concrete, one 16- by 13-foot radial gate. Revolving fish screen 40 feet upstream from gate.
Weber-Provo Diversion Dam Type: Concrete ogee weir, embankment wings Location: On the Weber River about 1 mile east of Oakley, Utah. Year completed: 1930 Dimensions:
Sluiceway: Adjacent to left end of overflow section, controlled by two 5-by 6-foot slide gates. Headworks: Concrete, six 5- by 6-foot slide gates, at right angles to dam and adjacent to sluiceway.
Broadhead Diversion Dam Type: Concrete ogee weir, embankment wings Location: On Broadhead Creek, about 23 miles east of Kamas, Utah. Year completed: 1953, replaced 1964. ² ² Replaces previous Reclamation-constructed dam of the same name. Dimensions:
Sluiceway: At left side of dam, controlled by 3-by 4-foot slide gate. Headworks: 30-inch diameter precast concrete pipe, controlled by 30-inch diameter slide gate.
Carriage FacilitiesDuchesne Tunnel
Provo Reservoir Canal
Salt Lake Aqueduct
Alpine-Draper Tunnel
Olmsted Tunnel
Terminal Reservoir (Salt Lake Aqueduct) Location: In the southeast portion of metropolitan Salt Lake City. Description: The principal features of the Terminal Reservoir are the automatic wasteway, the Venturi meter structure and the chlorination and control house, the Sam Park Reservoir inlet control structure, ³ the two 61.4-acre-feet storage units, and the influent and effluent piping system. ³ Sam Park Reservoir built by private interests. Dimensions (each storage unit):
Weber-Provo Diversion Canal Location: From the Weber River at a point about 1 mile east of Oakley, Utah, generally south 9 miles to the Provo River. Construction period: Originally constructed in 1929-30 as a part of the Weber River Project. Enlarged in 1941-47 under the Provo River Project. Length - 9 miles Capacity - 1,000 cubic feet per second Typical maximum section in earth:
Typical maximum section, concrete lined:
Typical maximum section, compacted earth lining:
South Lateral Location: From outlet Jordan Narrows Pumping Plant, generally south 3.8 miles Construction period: 1949-50 Length - 3.8 miles Capacity - 40 cubic feet per second Typical maximum section in earth:
Typical maximum section, concrete lined:
Jordan Narrows Pumping Plant
Power FacilitiesDeer Creek Powerplant
Substations
Transmission Lines
This web page was adapted from portions of a Bureau of Reclamation Project Data book dated May, 1981. |
