Some Notable Baker-Coupled Projects

Project: Belmont Filter Plant, 1966. Philadelphia, Pa.
Owners: City of Philadelphia.  Engineers: Morris Knowles, Inc. Pipe size on this major project ranged from 73.25” O.D. down to 37.25” O.D., with middle rings 1/2” x 10” of ASTM A36 steel. Also 37” O.D. steel Insulated Couplings.

Project: Cow Creek Unit, 1966. Northern California.
Owners: Bureau of Reclamation, U.S.D.I. Engineers: Same. Distribution project. Pipe sizes 55.88” O.D. (3/8” x 10” middle ring) down to 28.78” O.D., with many Insulating Couplings included for corrosion control.

Project: Bishop Plant No. 4 Hydroelectric Project, 1966. California.
Owners: Southern California Edison. Engineers: Same. 60” O.D. penstock with working pressure of 180 PSI. One of several Baker-coupled for this utility. With 1/2” x 10” middle ring, ASTM A26 steel.

Project: Tuy No. 2, 1966. Venezuela.
Owners: Instituto Nacional de Obras Sanitarias. Engineers: Same. A portion of one of the most notable pipelines in the world. 85” O.D. with 3/4” x 10” middle ring, for 298 PSI working pressure.

Project: Cumana Water Treatment Plant, 1966. Venezuela.
Owners: Instituto Nacional de Obras Sanitarias. Engineers: Same. This treatment plant required a quantity of All Steel Couplings from 42.75” O.D. down to 32” O.D. and smaller.

Project: Corning Canal Pumping Plant, 1966. Northern California.
Owners: Bureau of Reclamation, U.S.D.I. Engineers: Same. One of many Bureau of Reclamation projects using Baker couplings. 36” O.D., 1/4” x 7” middle ring, for 150 PSI working pressure.

Project: Carbon Creek Pressure Control Station, 1967. Southern California.
Owners: Metropolitan Water District. Engineers: Same. Steel Insulating Coupling for 86.36” O.D., with 3/4" x 18” middle ring of ASTM A36 steel. Also included 36.75” O.D. couplings, 3/8” x 10” middle ring.

Project: Broken Bow Dam penstock, 1967. Okla.
Owners: U.S. Army Corps of Engineers. Engineers: Same. Couplings for 16.7 foot O.D. pipe, 135 PSI working pressure. Middle ring 1 3/8” x 18”, ASTM A285 C Firebox steel.

Project: Tuy No. 2, Camatagua Project, 1967.  Venezuela.
Owners: Instituto Nacional de Obra Santarias. Engineers: Same. This noteworthy engineering project carries the water from Camatagua Dam to the outskirts of Caracas, traversing some rugged mountain terrain. Line was designed for all 85” O.D., with pressures ranging from 85 PSI up through 578 PSI working pressure. Because of the nature of the installation, surges may rise considerably over this. Middle rings ranges from 1/4" x 10” ASTM A36 to 1” x 10” ASTM A242 steel. Over 3,000 Baker All Steel Couplings are incorporated in the Tuy No. 2 project, constituting the largest order for couplings in the world. Featured in Engineering News-Record for February 1, 1968, as “Caracas Goes Over the Hill for 24-Hour Water,” because of world-wide interest.

Project: Salina Pumped Storage Project, 1967. Vinita, Oklahoma.
Owners: Grand River Dam Authority. Engineers: W.R. Holway & Assoc. Incorporates 12 penstocks, six of which are already built and coupled by Baker. First 3 penstocks built in 1967, second 3 in 1969. Incorporates 18 couplings for 14.3 foot O.D. (3/4” x 19” middle ring) and 6 couplings for 12.8 foot O.D. (7/8” x 19”), with pressures ranging up to 150 PSI. Steel was ASTM A516, Grade 60.

Project: Oso Pumping Plant, 1968. Southern California.
Owners: Department of Water Resources. Engineers: Same. This important pumping plant on the California Water Project included some sixteen special seismic type couplings, for 96” O.D. and 54” O.D., 200 PSI working pressure. No damage reported after the February, 1971, earthquake on these discharge lines. Also, included four 79.25” O.D. couplings on the valves, at 150 PSI. Removable pipe stops were also a design novelty on this project. Four 36.75” couplings used here.

Project: Wheeler Ridge Pumping Plant, 1968. Southern California.
Owners: Department of Water Resources, State of California. Engineers: Same. Part of the huge California Water Project. These are the discharge lines from the plant. Project used some 203 Baker couplings for 109” O.D. pipe, ranging from 98 PSI to 195 PSI, with middle rings up to 1/2" x 10” ASTM A242 steel. 3 deg. angular deflection was required, due to seismic conditions at the project. To relate the discharge lines to the pumphouse, Baker also furnished six special couplings for 79” O.D., and twelve for 109” O.D. with allowance for settlement, misalignment and extreme seismic activity. No damage was sustained to this huge pumping plant and its seven 109” O.D. discharge lines during the February, 1971, Southern California massive earthquake. Angular deflection of 3.18 degrees had been designed into the Baker Couplings on this project as engineering insurance against such possible catastrophe.

Project: Wind Gap Pumping Plant, 1968. Southern California.
Owners: Department of Water Resources, State of California. Engineers: Same. Another contract of the California Water Project. Couplings designed for 300 PSI working pressure and 3 degrees angular deflection. For 82.25” O.D., Baker provided 5/8” x 24” middle rings of ASTM A242 steel. For 109.50” O.D. the middle rings were 3/4" x 24”, ASTM A242. Seismic conditions also dictated this design.

Project: Casa Loma Siphon, 1968. Southern California.
Owners: Metropolitan Water District. Engineers: Same. In this portion of the Second Barrel, Baker furnished twelve 151.75” O.D. couplings, with 7/8” x 24” middle rings of ASTM A36 steel.

Project: Sepulveda Feeder, 1968. Southern California.
Owners: Metropolitan Water District. Engineers: Same. Insulating Couplings for 155.13” O.D. steel pipe make this project notable. These are the largest known insulating couplings. Middle ring 3/4" x 18”, ASTM A36 steel.

Project: Monroe Street Grit Station, 1968. Omaha, Nebraska.
Owners: City of Omaha. Engineers: Same. Employed some forty Baker Couplings from 48” O.D. (1/2” x 10” middle ring) down to 24” O.D., all for 150 PSI.

Project: Second San Diego Aqueduct, 1968. Southern California.
Owners: Metropolitan Water District. Engineers: Same. For corrosion control, Baker furnished Insulating couplings for 102.67” O.D. steel pipe. These had middle rings of 3/4" x 18” ASTM A36 steel, with rigorous tests for insulating quality of the joints. Some couplings for 62” O.D. also furnished on this project.

Project: Tank Flow Lines, 1968. St. James, Louisiana.
Owners: Steel Pipe Line Corp. Engineers: Same. These 48” O.D. All Steel Couplings included middle rings of 1/2" x 16” for 230 PSI working pressure. Baker Series 421 Harnesses were also included in these 16 couplings.

Project: Second Los Angeles Aqueduct, 1968. Southern California
Owners: Los Angeles Dept. of Water & Power. Engineers: Same. 79.13” O.D. pipe, 293 PSI working pressure. Middle rings were 9/16” x 10” ASTM A441 high-strength steel.

Project: Pearblossom Pumping Plant, 1969. Southern California.
Owners: Department of Water Resources. Engineers: Same. Part of California Water Project. Included 103” O.D. for 310 PSI working pressure (3/4” x 10” middle rings). 65” O.D. for 326 PSI (1/2” x 16”) and 46” O.D. (5/16” x 16”), all ASTM A242 high strength steel. Designed for seismic conditions. No damage sustained in February, 1971, earthquake.

Project: Rose Valley Conduit, 1969. Southern California.
Owners: Los Angeles Department of Water & Power. Engineers: Same. 98.38” O.D. couplings, with 1/2" x 10” middle rings, ASTM A36 steel. Also 49.75” O.D. (3/8” x 10”). Project also used Baker Insulating Coupling for 122.13” O.D. steel pipe.

Project: Richmond Connecting Conduit, 1969. New York City, N.Y.
Owners: Board of Water Supply. Engineers: Same. New water supply for Borough of Richmond. These couplings for 97.50” O.D. steel pipe featured middle rings of Stainless Steel, Type 316, 1/2” x 10”, for 175 PSI. Also included 49” O.D. couplings with same design features.

Project: Castaic Dam Outlet Works, 1970. Southern California.
Owners: Department of Water Resources. Engineers: Same. Largest coupled portion of California Aqueduct. Includes some fifty Baker couplings for 19.2 foot O.D., 137 PSI working pressure. Middle rings of 11/16” x 18” ASTM A537, Grade A steel. Other couplings were for 133.38” O.D. (5/8” x 13”), 115.13” O.D. (5/8” x 13”), 78.75” O.D. (3/8” x 10”), 60.63” (5/16” x 10”), 42.63” O.D. (1/4” x 10”) and 30.50” O.D. (1/4”x 10”).

Project: Sepulveda Canyon Control Facility, 1970.  Southern California.
Owners: Metropolitan Water District. Engineers: Same. 98.13” O.D., with 9/16” x 10” middle rings of ASTM A283, Grade D steel.

Project: Fisher Penstock, 1970.  Tasmania, Australia.
Owners: Hydro-Electric Commission of Tasmania. Engineers: Same. This very high pressure penstock included the following 185 couplings, all with middle rings of ASTM A516, Grade 70, 10” width:

62” O.D. 601 PSI 23 1” thick
62” 675 98 1 1/8”
62” 749 13 1 1/4"
62” 822 10 1 3/8”
62” 894 10 1 1/2” thick
56” O.D. 908 20 1 3/8”
56” 1001 11 1 1/2”


Project: Karnafuli Hydro Project, 1970. East Pakistan.
Owners: E. Pakistan Water and Power Authority. Engineers: Sverdrup and Parcel. Penstock 25.5 foot O.D., for 67 PSI working pressure. Middle ring 7/8” x 18”, of ASTM A285C Firebox steel.

Project: Northeast Pump Station, 1970. Detroit
Owners: City of Detroit. Engineers: Hubbell Roth & Clark, Inc. Included 85” O.D. and 79” O.D. couplings, middle rings 1/2" x 10”, ASTM A36 steel.

Project: Tehachapi Surge Tank, 1970. Southern California.
Owners: Department of Water Resources. Engineers: Same. Penstocks of 23.6 foot O.D., for 60 PSI working pressure. Provide articulation of pipeline adjacent the huge surge tank, one of the largest structures on the California Water Project. Middle ring 3/4" x 17”, ASTM A285C, Firebox steel. Other couplings for 169.50” O.D. (210 PSI, 3/4" x 17” ASTM A242) and 61” O.D. (1/2” x 10” AISI C-1015).

Project: Southern Nevada Water Project, Las Vegas, Laterals, 1970. Nevada.
Owners: Bureau of Reclamation. Engineers: Same. From 76.50” O.D. down to 25.38” O.D. steel pipe, for 100 PSI working pressure. Middle rings of ASTM A242 in larger sizes, AISI C-1012 in smaller sizes.
Project: Trojan Nuclear Plant, 1971. Portland, Oregon.
Owners: Portland General Electric. Engineers: Bechtel Engineers. Pipe 133.50” O.D., 75 PSI. Middle rings ASTM A36 steel, 9/16” x 10”.

Project: Quail Lake Project, 1971. Southern California.
Owners: Department of Water Resources. Engineers: Same. 109” O.D. coupling with 1/2" x 10” middle ring of ASTM A36 steel.

Project: Foothill Power Project Penstock, 1971. Southern California.
Owners: Los Angeles Dept. Water & Power. Engineers: Same. 245 PSI working pressure penstock. Middle rings ASTM A516, Grade 70 steel. 60.75” O.D. (1/2” x 10”), 48.75” O.D. (3/8” x 10”) and 44.88” O.D. (3/8” x 10”).

Project: Devil Canyon Powerplant Penstock, 1971. Southern California.
Owners: Department of Water Resources. Engineers: Same. An important power-producing feature of the California Water Project. Includes 144 couplings, ranging from 154” O.D. (151 PSI) to 96” O.D. (654 PSI). Middle rings of ASTM A242 high strength steel, from 1/2" to 1 5/16” thickness. This high head installation is epoxy lined throughout its length as are all couplings on the California Water Project.

Project: Comanche Steam Electric Generating Plant, 1971.  Denver, Colorado.
Owners: Public Service Co. of Colorado. Engineers: Stearns-Roger Co. 85” O.D. circulating water lines, for 50 PSI. 1/2" x 10” middle rings, ASTM A36 steel.

Project: Auld Valley Reservoir, 1971. Southern California.
Owners: Metropolitan Water District. Engineers: Same. 146.25” O.D. (3/8” x 10” middle ring), 97.75” O.D. (3/8” x 10”), 36.75” O.D. (3/8” x 7”), 31.75” O.D. (3/8” x 7”), all ASTM A283, Grade D steel.

Project: Santa Ana Valley Pipeline, 1971. Southern California.
Owners: Department of Water Resources. Engineers: Same. 111.53” O.D. pipe Insulating Coupling with 7/8” x 10” middle ring, ASTM A242, for 365 PSI working pressure. 109.75” O.D. (3/8” x 10” ASTM A242) for 44 PSI.

Project: Gibraltar Mines, 1971. British Columbia, Canada.
Owners: Gibraltar Mines. Engineers: Same. 170 couplings for 36” O.D. pipe, with 1/4” x 7” middle rings.

Project: St. James Terminal, 1971. Louisiana.
Owners: Marathon Pipe Line Co. Engineers: Same. 48” O.D. couplings with Series 421 Harnesses for 275 PSI working pressure.

Project: Devil Canyon Turbine, California, 1973.
Owners: California DWR.
Engineer: Same – Purchased by Sulzer Bros, installed by Shirley Co. Three couplings, 6’ in diameter, 1080 PSI, machined tolerances.

Project: Chief Joseph Dam, Washington, 1976.
Owners: U.S. Corps of Engineers
Engineer: Same – Purchased by CB&I, Eleven penstock couplings, 25’ – 1 1/2" O.D., 60 PSI Segmented, 3/4" x 22” MR’s, ASTM A242.

Project: Castaic Power Plant, California, 1974.
Owners: LADWP, Power Division.
Engineer: Same – Purchased by ABD-Div USS. 202 penstock couplings ranging in sizes from 12’-6” to 13’-6”, up to 564 PSI, MR’s from 1 1/8” x 10” to 1 7/8” x 10”. All steel for MR’s and Followers ASTM A537, Class 1. One of the largest coupling contracts ever awarded.

Project: New Melones Lake, California, 1976.
Owner: U.S. Corps of Engineers
Engineer: Same – Purchased by ABD-Div USS. Two couplings for 13’ – 2 1/2" and four for 14’ – 9 1/4", 310 PSI, MR’s ASTM A537, Class 1, middle rings 1 9/16” x 18”. XRay quality welding.

Project: American Falls, Idaho, 1976.
Owner: Idaho Power Corp
Engineer: Bechtel Inc – Purchased by CB&I, three segmented couplings for 18’ – 1 1/4" pipe, 35 PSI, MR’s ASTM A516 Grade 60, 3/4" x 20”.

Project: Rio Grande, Argentina, 1978.
Owner: Government of Argentina
Engineer: Same – Four couplings for 500 PSI, MR’s ASTM A242, 10’ – 11 3/4" in diameter.

Project: Libby Dam, Montana, 1973 & 1978.
Owner: U.S. Corps of Engineers
Engineer: Same – Purchased by CB&I, Eight couplings, 17’ – 8 3/4" O.D., segmented 190 PSI, MR’s 1 1/4" x 18” ASTM A588. Four units in 1973 and four units in 1978.

Project: Pyramid Dam, California, 1980.
Owner: California DWR
Engineer: Same – Purchased by Bingham, Willamette Co. Four couplings for 104” O.D., 565 PSI test, MR’s 1 3/8”. Two couplings for 61.875” O.D., same test. MR’s XRay quality.

Project: Big Creek #3, Unit #5, California, 1979-80.
Owner: Southern California Edison Company
Engineer: Same – Thirty-eight couplings, varying from 1/4" x 10” MR’s for 90.626” OD to 7/8” x 10” MR’s for 85.625” O.D. XRay quality welding, A537 Steel. Test exceeded 700 PSI at the Powerhouse. Purchased by OWL-H C Smith, Newport Beach, CA.

Project: Lake Havasu Pump Station, Arizona, 1981-82.
Owner: U.S. BuRec, Central Arizona Project
Engineer: Same – Purchased by Hitachi Ltd, installed by Shirley Co. Six couplings, 4’ – 6” O.D., tested to 490 PSI, Deep Well Pump Turbine

Project: Russell Dam, Georgia, 1982.
Owner: U.S. Corps of Engineers
Engineer: Same – Purchased by Voest, Alpine International. Four segmented couplings, 26’ – 6” O.D., 150 PSI.

Project: Pastoria Siphon #2, California, 1982-83.
Owner: California DWR
Engineer: Same – Purchased and installed by ABD – Div of USS. Fifty single piece couplings, tested to 100 PSI.

Project: Bath Pump Station, Virginia, 1983.
Owner: Virginia Electric Power Corp.
Engineer: VEPCO & Harza, Chicago. Purchased by Allis Chalmers Hydro Division. Six coupling 9’ O.D., 920 PSI, MR’s made out of T-1steel, XRay Quality throughout. 

Project: Tyee Lake Hydro Station, Alaska, 1983.
Owner: Alaska Power Corp.
Engineer: APC, IECO, EBASCO – Purchased by Pro Fab, St Louis, installed by Harrison-Western Co. Twenty-six high pressure couplings, 5’-6” O.D., 900 PSI test.

Project: Nipawin – NH-210, Canada, 1983.
Owner: Saskatchewan Power Corp, Regina.
Engineer: Acres International – Purchased by AMI-Steego, Canada, installed by Kiewit. Fifteen segmented couplings, 28’ O.D., for 82 PSI.

Project: Contract 523A, New York City, 1986.
Owner: City of New York
Engineer: Same – Purchased by Grow Tunneling, NYC. Eighty-five couplings, over half made out of 3161 stainless steel. O.D.’s of 8’ – 4” to 2’. Prototypes tested in shop prior to award, onsite inspection by NYC. Hydrotested after construction in shop up to 412 PSI.

Project: DC-7668, US BuRec, Reach 4, 1987, Central Arizona Project
Owner & Engineer: US BuRec
Contractor: Enserch Alaska
Fabricator: Progressive Fabricators 30-Series 200-72.50, 2-200-36.50 and 1-200-54.50.

Project: No Davis WWTP Expansion, 1987.
Owner: Davis County
Engineer: James M. Montgomery, Pasadena, CA.
Contractor: Nelson Bros.
Purchased by United Concrete Pipe Co. Series 20C and 216 couplings, from 62.625” O.D. to 37.875” O.D., Fusion Epoxy and SS Bolts.

Project: DC-7912, US BuRec, Reach 5 – 1987.
Owner & Engineer: US BuRec
Contractor: Ball, Ball & Brosamer
Purchased by California Pipe Fabricators 22-200-72.50 and 2-200-48.50.

Project: City of New York Department #MED-553A, 1987-88.
Owner & Engineer: City of New York
Contractor: Perini Corp. Purchased by Pro-Fab in St. Louis. 5-84”, 5-48”, 12-36”, & 1-30” Special Baker Series 403 Expansion Joint for valve installation placement. Stainless Steel Slip Pipes, CTX Lining and Coating on Carbon Steel Parts. NYC Inspectors visit our plant during construction.

 Project: City of New York Department #QED-864, 1987-88.
Owner & Engineer: City of New York
Contractor: Judlau Corporation
NYC Drawing 44588-A-X. 5-48”, 4-36”, and 1-30” Special Baker Series 403 Expansion Joints.


Project: Conemaugh Hydroelectric Powerhouse.
Owner & Engineer: Pennsylvania Renewable Resources Associates (PRRA) Delivered 1988
Contractor: Kvaerner Hydro Power Inc Two (2) Baker Series 200-143.50” O.D., MR 13” long, constructed in one piece. PSI 60.

Project: Mystic Lake Hydro Project.
Owner & Engineer: Montana Power Corp
Contractor: Martel Construction
Fabricator: Empire Steel Manufacturing Co.
Over 250 Series 200-57.50 (1/4 x 10) to replace wooden barrel stave pipe. Delivered 1988.

Project: City of Chandler, AZ WPCF.
Engineer: Malcolm Pirnie, New York
Contractor: Harris Mechanical, Denver
Fabricator: No American Pipe Specialty
All Baker Series 200 and 602 FCA’s made out of Type 304 SS throughout. Delivered 1988.