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TRANSMISSION DIVISION

We are going to take up the Transmission Division, page 101. Put pages 101 to 108, inclusive, in the record.

(Information referred to follows:)

MISSOURI RIVER BASIN PROJECT, TRANSMISSION DIVISION

Location.-The Transmission Division of the Missouri River Basin project includes the necessary facilities required to carry to market the power generated by powerplants of the Corps of Engineers and the Bureau of Reclamation in the basin. This power market now includes North Dakota, South Dakota, Nebraska, and portions of Montana, Wyoming, Colorado, Minnesota, and Iowa.

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The total construction cost of the Transmission Division has been decreased from $313,282,304 to $294,404,556. This decrease is the result of an extensive review of the transmission system with a decision to reduce the total estimated mileage of lines proposed for future construction and also reflects actual bid prices received for features now under construction and the application of these prices to future work.

On the basis of current engineering and economic information, certain facilities, scheduled for future construction, have been eliminated from the long-range plan. To this major reduction is added the decrease in cost of several facilities under construction due to receipt of bids lower than the engineers' estimates. The total decrease is partially offset by cost increases, largely substation additions to provide for load growth, on other lines. The total Transmission Division reduction of $18,877,748, a net of the various cost increases and decreases, results in the new cost estimate of $294,404,556.

Total estimated project cost and allocation

Total estimated project cost to be allocated: Total construction cost__

Allocation of total estimated project cost:

Reimbursable: Power---

Repayment of reimbursable costs

$294, 404, 556

294, 404, 556

Reimbursable power costs included in basinwide system and repaid by basinwide power revenues_

294, 404, 556

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Excludes several minor substations and minor lower-voltage transmission lines identified as REA "Top lines, etc.," and "Transmission lines, substations-future."

Status. As of June 30, 1955, construction was nearing completion for the initial stages of the East River, S. Dak., 115-kilovolt transmission lines and substations; initial stages of Oahe-Midland-Rapid City 115-kilovolt transmission lines and substations; and the first circuit of the Garrison-Oahe-Fort Randall 230-kilovolt transmission line. Construction was underway on the 230-kilovolt substation additions for the Garrison-Oahe-Fort Randall transmission line; the JamestownFargo 230-kilovolt transmission line and initial stage of Fargo substation; the Edgeley-Groton 115-kilovolt transmission line. The first circuit of the Fort Randall-Sioux City 230-kilovolt transmission line was complete, and the initial stage of the Sioux City substation was nearing completion. Construction continued on the Big Bend-Watertown-Granite Falls 230-kilovolt transmission line. Construction of the Basin substation and the 34.5 kilovolt additions to Lovell substation was started and specifications were issued for construction of Ellendale substation.

Work is complete on the Gering-Sterling, Sidney-Ogallala, Gering-Chadron, Sem noe-Sinclair, Cheyenne-Pine Bluffs, and Casper-Gering 115-kilovolt transmission lines and the Glendo-Lnsk 69-kilovolt transmission line is complete.

Work on the Fort Randall-O'Neill 115-kilovolt transmission line is essentially complete with only work on the O'Neill substation communication facilities being carried on in fiscal year 1956.

Several small substations to serve REA's and municipalities were constructed or under construction. General property items such as tie-line load, frequency control, telemetering, and radio-type communication equipment were contracted to meet the operation, maintenance, and dispatching requirements of the system. During fiscal year 1956, the remaining work on the initial stages of the East River 115-kilovolt; the Garrison-Oahe-Fort Randall 230-kilovolt transmission line; and the Oahe-Midland-Rapid City 115-kilovolt line and substations will be almost completed. The initial stage will be completed, and a contract for the second stage construction at the Sioux City substation will be awarded and completed. Construction of the Big Bend-Watertown-Granite Falls 230-kilovolt transmission line will be continued with construction initiated on Granite Falls substation. Construction of the Jamestown-Fargo 230-kilovolt transmission line and an additional stage of the Jamestown substation will be essentially completed. The initial stage of the Fargo substation will be nearly completed. Construction of the Fargo-Grand Forks 115-kilovolt transmission line and Grand Fork substation will be initiated and construction of the Edgeley-Groton 115-kilovolt transmission line and substation additions will be completed. The Lovell substation and initial stage of Basin substation will be completed, as will be the Lovell-Yellowtail 115-kilovolt transmission line. Work will be continued on general property items and on several small substations to serve REA's and municipalities.

The Gavins Point-Belden 115-kilovolt transmission line and the Belden substation will be completed in fiscal year 1956. It is estimated that the 67 metering stations being installed for metering power to customers in Iowa and Nebraska and the 15 metering stations serving the same purpose in Colorado will be nearing completion on June 30, 1956. The Erie substation is expected to be placed in service in December 1955.

Work will be underway on the Alcova-Gering, Lingle tap, and Alcova-Fremont 115-kilovolt transmission lines, also work will continue on the following substations and switchyards: Chappell, Lingle, Alcova, Gering, Guernsey, and Glendo.

WORK PROPOSED, FISCAL YEAR 1957

East River, S. Dak., 115- and 230-kilovolt transmission loop and substations ($335,000).—The program provides for issuance of specifications and award of supply and construction contracts for constructing terminal facilities 230-kilovolts at Sioux Falls substation for the Utica Junction-Sioux Falls 230-kilovolt line. Completion of initial construction on the Yankton substation is scheduled for the first quarter, which will complete all planned interconnections with Northwestern Public Service Co.

Utica Junction-Sioux Falls 230-kilovolt transmission line ($450,000).—Studies completed during fiscal year 1956 in connection with the Gavins Point-Sioux Falls 115-kilovolt line indicated that a 230-kilovolt line will be required to deliver power and energy in the amounts required to the Sioux Falls area. These studies also indicated the most economical way to provide this transmission capacity is to tap the existing Fort Randall-Sioux City 230-kilovolt transmission line at a point near Utica, S. Dak., construct a single circuit 230-kilovolt transmission line approximately 65 miles to Sioux Falls substation, and to construct 230/115-kilovolt terminal and transformer facilities at Sioux Falls. Supply and construction invitations will be issued and contracts awarded during fiscal year 1957 with completion of this line and related facilities scheduled early in fiscal year 1959.

Fort Randall-Sioux City 230-kilovolt transmission line and substation ($450,000).—The amount shown provides for issuance of specifications and award of suppy and construction contracts for a service delivery at Sioux City substation for the Iowa Public Service Co. This third-stage addition is scheduled for completion during April 1958, and will include 75,000-kilovolt-amperes of transformer capacity. Invitations will be issued for the installation of a switch at Utica Junction.

Big Bend-Watertown-Granite Falls 230-kilovolt transmission line and substations ($1,497,000).—The program provides for completion of initial construction on the Fort Thompson-Grante Falls 230-kilovolt line, the Granite Falls-Northern States Power Co. 230-kilovolt tie line and initial development of the Granite Falls substation. Specifications will be issued and supply and construction contracts awarded for constructing an addition to Granite Falls substation to provide service to the Rural Cooperative Power Association and to the city of Granite Falls. Completion of this addition is scheduled for September 1957. Rapid City-Chadron 115-kilovolt transmission line ($10,000).-Preliminary investigations and studies for additional transmission facilities in the Rapid City area.

Central North Dakota 230-kilovolt, 115-kilovolt, and 69-kilovolt transmission lines and substations ($67,000).-For completion of a small addition to the Devils Lake substation, finishing rehabilitation of the Williston-Garrison 115kilovolt line and other minor completion items.

Jamestown-Fargo 230-kilovolt transmission line and substations ($370,000).— Completion of the first stage of the Fargo substation, including record drawings and construction reports, is provided for. A substantial start will be made on the installation of equipment to provide more capacity in the Fargo substation. Edgeley-Groton 115-kilovolt transmission line and substation ($22,000).— For completion work on the Edgeley-Groton line and the Ellendale substation, consisting of record drawings and contract administration.

Lakota-Grand Forks 115-kilovolt transmission line ($10,000).-For preliminary planning with construction scheduled to start in fiscal year 1958.

Grand Forks-Fargo 115-kilovolt transmission line and substation ($953,000).— Except for installations not initially required, construction of the Fargo-Grand Forks line and the Grand Forks substation will be substantially completed with this amount of funds.

Dawson County-Bismarck 230-kilovolt transmission lines and substation ($30,000). The program provides for planning this feature, with construction scheduled to start in fiscal year 1958.

Fargo-Benson-Granite Falls 230-kilovolt transmission line and substation ($1,682,000). Specifications will be issued and contracts awarded for furnishing steel towers, for constructing footings and erecting towers, and for furnishing and stringing conductor. Acquisition of right-of-way for the line and substation is provided for. Specifications will be prepared and contracts awarded for major electrical equipment for the Fergus Falls substation. Initiation of construction of this line is dependent on the outcome of studies in progress.

Boysen-Pilot Butte-Lander 115-kilovolt and 34.5-kilovolt transmission lines and substations ($15,000).—For studies required to firm up requirements for these facilities in fiscal year 1958.

Sidney-Ogallala 115-volt transmission line and substations ($60,000).—This amount will provide for final designs and procurement of electrical equipment for Chappell substation.

Alcova-Gering 115-kilovolt transmission line and substations ($455,518).—Includes completion of construction of the Alcova-Gering line, Lingle tap line, completion of construction of two additional bays for Alcova switchyard, and the Lingle substation.

Casper-Gering 115-kilovolt transmission line and substations ($851,768).—The construction of one additional 115-kilovolt bay for Gering substation will be completed. Also included is the procurement of electrical equipment and construction of Guernsey substation additions. In order that the Glendo substation can be completed concurrently with Glendo powerplant, funds have been included for material procurement and construction.

Alcova-Fremont 115-kilovolt transmission line ($56,021).-Construction of this 8.5-mile transmission line will be completed during the first half of the budget year.

Fort Randall-Grand Island 230-kilovolt transmission line and substation ($5,500,000).—It is proposed to construct a 230-kilovolt transmission line from Fort Randall to Grand Island with a substation at Grand Island. The funds will be used for procuring right-of-way, preconstruction activities, design, ordering materials, award of a construction contract for the line and substation, and initiation of construction.

Metering stations, Nebraska and northwestern Iowa ($12,500).—To continue installation of metering stations initiated in fiscal year 1956.

South Platte metering stations ($2,500).—For metering station installations. Sterling substation addition ($67,000).-Includes the purchase of substation equipment and award of the contract for installation of equipment. This addition will replace existing 6,000 to 8,000 kilovolt-ampere transformer bank serving the 69-kilovolt Sterling-Holyoke transmission line with a bank of 12,000 to 16,000kilovolt-ampere capacity.

Tap lines, substations, and equipment to serve REA and other customers ($138,000). Contract payments will be made for equipment and construction of Heart Mountain switchyard addition to serve the Shoshone River power REA. Metering equipment will be procured and installed in REA substations and points of delivery to power companies for metering power deliveries.

Emergency use station equipment ($141,270).-Contract payments will be made for a spare single-phase 230 to 115 kilovolt autotransformer for use in the eastern division.

General property ($438,500).-Contract payments will be made for procurement and installation of carrier current supervisory control equipment, telemetering and the VHF frequency modulated communication system. Acquisition of additional operation and maintenance equipment is provided to meet the requirements of an expanding system. Power dispatching office facilities and additional power dispatching equipment will be provided.

Transmission lines and substations-future ($60,000).-This amount provides for preliminary investigation of facilities to be constructed in future years.

SCHEDULE OF CONSTRUCTION PROGRAM, FISCAL YEARS 1956 AND 1957
Missouri River Basin project, transmission division

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East River, S. Dak., transmission loop, and 115-kilovolt and 230-kilovolt substations.

Utica Junction-Sioux Falls, 230-kilovolt transmission line..

Oahe-Midland-Rapid City, 115-kilovolt transmission line and substations. Fort Randall-Winner, 115-kilovolt transmission line and substations... Garrison-Oahe-Fort Randall, 230-kilovolt transmission line and substations. Fort Randall-Sioux City, 230-kilovolt transmission lines and substations. Big Bend-Watertown-Granite Falls, 230kilovolt transmission line and substations.

Rapid City-Chadron, 115-kilovolt transmission line.

Central North Dakota, 230-kilovolt, 115kilovolt, and 69-kilovolt transmission lines and substations.

Jamestown-Fargo, 230-kilovolt transmis-
sion lines and substations.

Edgeley-Groton, 115-kilovolt transmis-
sion lines and substations..
Lakota-Grand Forks, 115-kilovolt trans-
mission line.

Grand Forks-Fargo, 115-kilovolt trans-
mission line and substations..
Dawson County-Bismarck, 230-kilovolt
transmission lines and substations...
Fargo-Benson-Granite Falls, 230-kilovolt
transmission line and substation..
Canyon Ferry-East Helena, transmission
line and Crow Creek substation..
Alcova-Boysen-Lovell-Garland, 115- and
69-kilovolt transmission lines and sub-
stations.

Lovell-Yellowtail, 115-kilovolt transmission line..

Seminoe-Sinclair, 115-kilovolt line and substations...

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