Description of work or material

Constructing two dams and one dike, all earthfill struc tures. North Dam will be about 53 ft high, 475 ft long, and will contain about 107,000 cu yd of material. South Dam will be about 69 ft high, 600 ft long, and will contain about 147,000 cu yd of material. The dike will be about 11 ft high, 790 ft long, and will contain about 8,800 cu yd of material. Appurtenant features will include a combined spillway and outlet works structure, a feeder canal, and an access road. The combined spillway and outlet works structure will consist of a 3-ft insidediameter pressure conduit, a combined spillway and gate structure, a downstream 4-ft modified horseshoe conduit, a stilling basin, and a Parshall flume. The feeder canal will consist of a turnout structure, about 1,700 ft of open canal section, about 450 ft of 36-in. precast concrete pipe chute, and a stilling basin structure. The access road will be about 2,700 ft long. West of Fort Duchesne.

Constructing about 17 miles of earth dikes with an average height of 5 to 6 ft throughout the 1,300-acre reservoir area; and earthwork and structures for about 23 miles of concrete-lined open drain having a bottom width of 8 ft and a lining height of 10 ft. Kesterson Reservoir, First Stage, and San Luis Drain to Mile 105. Five miles east of Gustine to 2.5 miles southwest of Dos Palos.

Extending Tehama-Colusa Canal section about 760 ft; constructing about 950 ft of 18.5 ft-diameter siphon under Thomes Creek; and constructing 6,000 ft of dike along Thomes Creek. About 15 miles south of Red Bluff, Constructing 41.4 miles of 12- through 96-in.-diameter pipeline with heads varying from 25 through 125 ft; four slide gate structures; and two reinforced water screen and recirculating structures. Westlands Laterals 27 and 28, near Mendota.

Clearing, earthwork, culverts, fencing, guardrail, and bituminous surfacing for about 2.8 miles of 40-ft-wide relocated county road. Auburn-Foresthill Road, about 1 mile north of Auburn. Preconsolidating 3.5 miles of lateral and two pumping plant sites. The preconsolidation will be done by sprinkling, ponding, and ponding with infiltration wells. Westlands Water District, about 12 miles south and five miles west of Mendota. Constructing 19 pipe crossings for Interstate Highway No. 5 which will consist of 6,200 ft of 18- through 60in.-diameter pipe for 300 ft of head. On Interstate Highway No. 5, from 10 to 60 miles northwest of Kettleman City.

Construction two small pumping plants of reinforced concrete. The Whitestone Flats Plant will have a capacity of 17 cfs with three pumping units and about 850 ft of 27-in. buried discharge line. The North Branch Plant will have a capacity of 9 cfs with two pumping units and about 105 ft of 18-in. discharge line. At Spectacle Lake, about 7 miles northwest of Ellisford. Constructing a 200- by 45-ft structural-steel framed building with a garden level reinforced concrete basement. Building exterior walls are to be brick with a window wall and insulated panel system covered with aluminum sun screen. Work will include electrical, plumbing, heating, and air-conditioning installations. About 1 mile east of Grand Coulee. Constructing a 58- by 85-ft reinforced concrete visitor center building. The building will be partially buried in a hillside with earth backfill on the roof and on three sides. Work will include electrical, plumbing, heating, and air-conditioning installations. Adjacent to the left powerplant road at Coulee Dam.

Project

MRBP, No. Dakota.

Description of work or material

Constructing Killdeer Substation will consist of constructing a 20- by 20-ft concrete masonry service building; concrete foundations; furnishing and erecting steel structures; furnishing and installing one 110/41.8-kv, 3-phase power transformer, two 46-kv oil circuit breakers, two 115-ky interrupter switches, one 115-kv horn gap switch, eight 46-kv disconnecting switches, and associated electrical equipment; and grading and fencing the area. MRBP, Iowa..... Stages 04 and 05 additions to the Creston Substation will consist of constructing concrete foundations; furnishing and erecting steel structures; furnishing and installing one 161/69-kv, 50,000-kva autotransformer, one 16,200kvar shunt capacitor bank, one 161-ky and three 69-kv power circuit breakers, and associated electrical equipment, major items of which will be Government furnished; and grading and fencing the extension to the existing substation.

No. Platte, Wyo... Parker-Davis, Calif.

Pecos River Basin Water Salvage, New Mexico. Southern Nevada Water, Nevada.

Do...

Do..

Two 5,000-kva, 3-phase, 34.4/2.3-kv transformers for Guernsey Powerplant.

Constructing about 65 miles of single-circuit, 3-phase, 161-kv Parker-Blythe Transmission Line will consist of clearing right-of-way; furnishing and constructing wood-pole structures; and furnishing and stringing three 954 MCM, ACSR conductors and two overhead ground wires. Extending from Parker to Blythe. Clearing phreatophytes along the Pecos River Basin in the Avalon area from McMillan Dam to the Pecos River flume. Near Carlsbad.

Constructing Southern Nevada Pumping Plant No. 1, a 600-cfs, 20-unit plant consisting of a reinforced concrete substructure; a superstructure of precast concrete wall panels and columns and prestressed concrete roof beams; one 45-ft-diameter, 46-ft-high reinforced concrete surge tank; one reinforced concrete anchor; one encased special bend; one 120-in. flowmeter; and 3,225 ft of 120-in.-diameter monolithic or precast concrete pipe with heads varying from 50 to 125 ft; and a switchyard. Work will also include installing 10 motor-driven, vertical-shaft, two-stage, turbine-type pumping units, and 10 hydraulic cylinder-operated, 24-in.-diameter cone valves; and furnishing and installing a 40-ton crane. Six miles north of Boulder City. Constructing Southern Nevada Pumping Plant No. 1A, a 315-cfs, 10-unit plant consisting of a reinforced concrete substructure; a superstructure of precast concrete wall panels and columns and prestressed concrete roof beams; and a switchyard. Work will also include installing 10 pumping units with electric motors and horizontal, centrifugal-type pumps. Constructing a 5million-gallon, reinforced concrete, two-compartment forebay. The forebay is to be trapezoidal in cross section with reinforced concrete slab cover supported on circular columns. It will have a sand and gravel underdrain system, an emergency wasteway which will spill into a 54-in.-diameter reinforced concrete pipe running about 0.25 mile to Lake Mead. Attached to one end of the forebay will be reinforced concrete inlet and outlet structures and a wash water pump structure with two 96- by 120-in., two 120- by 96-in., one 108- by 108-in., and one-96- by 96-in. cast iron slide gates with motoroperated lifts. Six miles north of Boulder City. Constructing 7.2 miles of 36-in.-diameter, reinforced concrete pipe with heads varying from 50 to 575 ft; 0.4 mile of 27-in.-diameter, reinforced concrete pipe with heads varying from 50 to 175 ft; reinforced concrete Surge Tank No. 5, 12 ft in diameter and 92 ft high; reinforced concrete Surge Tank No. 7, 10 ft in diameter and 39 ft high; and air valves, blowoffs, anchors, and manholes. Boulder City Lateral, from 6 miles north of Boulder City to vicinity of the water treatment plant in Boulder City.

Three horizontal, double-section, side-inlet, centrifugal pumping units with a capacity of 5 cfs at a total head of 80 ft for Pumping Plant No. 7. Three horizontal, double-section, side-inlet, centrifugal pumping units with a capacity of 9.6 cfs at a total head of 190 ft; and three 12-in. hydraulic cylinder-operated cone valves with valve-operating system for Pumping Plant No. 3. Three horizontal, double-section, sideinlet, centrifugal pumping units with a capacity of 34.5 cfs at a total head of 175 ft; and three 20-in. hydraulic cylinder-operated cone valves with valve-operating system for Pumping Plant No. 6.

Earthwork and structures for about 5,800 ft of concretelined Seminole Lateral. About 2 miles northwest of Yuma.

COMMISSIONER'S PAGE

RECLAMATION

Pra

Gordon J. Forsyth, Editor

CONTENTS

30 YEARS WITH TOM'. by J. R. Barkley

WATER FOR COALINGA... by Joyce Hoff

IMPROVED BY JOB CORPS.

TOUR SHASTA DAM.

by Naomi L. Hunt

TRAINING EXPERTS.

81

8

86

88888

90

32

FIRST DAM ON N. PLATTE 102

92

by C. W. Ivusic

FISH AT BLUE MESA..

96

by W. J. Wiltzius

by Nello Cassai

by W. Sanderson

STOP WATERWEEDS.

108

CHALLENGE IN IDAHO. 107

COVER. If the fishhook is as loaded as the determined poses of Mac, with bread wrapper around broken foot, and David, who peers 'neath nose-low hat Treadway brothers of Gunnison, Colo. even a wary Blue Mesa lake fish might lose his cool under such persuasive powers.

United States Department of the Interior
Stewart L. Udall, Secretary

Bureau of Reclamation, Floyd E. Dominy
Commissioner

Issued quarterly by the Bureau of Reclamation, United States Department of the Interior, Washington, D.C. 20240. Use of funds for printing this publication approved by the Director of the Bureau of the Budget, January 31, 1966.

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. Price 30 cents (single copy). Subscription price: $1.00 per year (25 cents additional for foreign mailing).

No Ghettos

Over a million rural Americans a year-though little prepared for the change-migrate to our already congested cities to add to the problems of inner city decay. Rural America also reveals a strong appeal. A recent poll showed a marked increase over just the last two years in the number of urbanites and suburbanites who would prefer to live in small towns or on farms. Because this reverse migration is productive and relieves troubled conditions, its results are noteworthy.

Some of these moves have been in areas of western multipurpose water projects developed by the Bureau of Reclamation. Water control features and wise use of western rivers have paved the way for stable economies and attractive rural and small town living in the Reclamation sectors of the West.

These projects create personal cooperative relationships between people, the land, the community, churches, schools and business enterprises. By their very nature, growth of smaller communities and family-sized farms are encouraged.

Reclamation projects have meant a steady source of irrigation water which allows farmers to diversify their operation and take full advantage of their land. The projects have meant new water and power to support new industries and new towns. They have created scenic lakes which are popular for a variety of recreation uses and have encouraged tourist travel and use.

There are no depressed areas, no ghettos, no decaying inner cities on Reclamation projects. But there are many kinds of opportunities for those who seek them and will make the most of them.

Hayle King

FLOYD E. DOMINY

Commissioner of Reclamation

A water supply system which is a credit to its direct beneficiaries, Colorado, and the Nation as a whole

"S

TARTLING changes have taken place," is the anniversary theme of the 30th annual report of the Northern Colorado Water Conservancy District.

"Farming practices of 1938 bear little resemblance to the operations of today. A way of life disappeared. . . a way remembered with nostalgia but which had to yield to increased economic pressures for more and more efficiency," further describes the NCWCD's tone of progress.

Created by the Colorado Legislature in 1937, ours is the first such district ever organized. It also was the first to enter into a water repayment contract with the U.S. Government, and the first to be served by a wholly supplemental water project.

The large and productive NCWCD is served by the Bureau of Reclamation's multiple-purpose

Colorado-Big Thompson Project, which is a showpiece of operational design in transmountain water diversion.

Construction on the "Big Tom" began in 1938 and curtailed during World War II-its first limited water deliveries were made in 1947.

Supplemental water supplies to more than 700,000 acres of irrigated lands, to various municipalities, industries, and rural domestic water users' associations are provided by the "Big Tom." Flowing via the 13.1-mile-long Alva B. Adams tunnel, an average 260,000 acre-feet of water is diverted annually from the Colorado River on the western slope of the Continental Divide, located north of Denver.

Total costs of construction of the project were $163 million.

By contract, the District is obligated to return $29 million of the construction cost to the Federal Government over a 45-year period, including a 5year transitional water rental period which began in 1957. The remainder of the project cost will be repaid from power revenues.

The NCWCD area embraces 1,481,000 acres in Boulder, Larimer, Weld, Morgan, Washington, Logan and Sedgwick Counties. The first valuation of the District in 1937, was $120.8 million. In 1966 it had grown to $493.5 million, and for 1967 it had climbed to $546.3 million-the latter 1-year increase of more than 10 percent.

However, both the number of farms and the farm population have decreased. Thirty years ago, 6,400 irrigated farms supported a farm popula