or cargo boats that will be going through there. Then there will be two smaller locks that are about 95 feet long, 25 feet wide, and 12 feet in depth to take care of the sailing vessels and small pleasure craft that may be going through the area. Senator MUSKIE. Does the construction of these offer any particular difficulties? Mr. LESLIE. No. The corps has been building these on the Ohio River and other places for many years, and we have the benefit of this experience. Senator MUSKIE. Will the construction in any way deal with the fisheries problem that some people fear? Mr. LESLIE. The reports that we have from the joint fisheries study groups of Canada and the United States are that the effects on fishing will be of minor significance. Secretary AILES. You do have fishways in some of these places, do you not? Mr. LESLIE. Yes. There are fishways, incidentally, in the powerhouses so that fish can pass back and forth from the two pools. Of course, also, there are fish ladders provided on the dam at Dickey. Senator MUSKIE. Now, there will be two powerhouses eventually. What will be the dimensions of these structures? Mr. LESLIE. I will have to look that up, sir. I am sorry. I do not have it right at my fingertips. Secretary AILES. They will have 500,000-kilowatt capacity each. Senator MUSKIE. And each will have 50 turbines, as I understand it? Secretary AILES. That is right. Mr. LESLIE. They will be in the neighborhood of 3,500 feet in length. Senator MUSKIE. Now, does the installation of the axial-flow turbines pose any problems that are more difficult or is it a less difficult problem than the installation of conventional turbines? Mr. LESLIE. I do not see that they would be particularly difficult. There is a little more difficulty in the alinement of them but I am quite sure we can handle it. Senator MUSKIE. Would this involve a smaller structure or in any way decrease the cost of the project, the use of the axial-flow turbines as against the conventional? Mr. LESLIE. The indications are that they are less expensive. Of course, our experience is limited. I think as we have more opportunities to study them, we will find increased savings on them. But the indications are that they will be cheaper. We have found particularly that it does narrow the bay that is required for each of the turbines and generators compared to a standard vertical type. We have been able to shorten the powerhouses because of this. Senator MUSKIE. Have you had any opportunities at all to study the La Rance River project, Mr. Leslie? Mr. LESLIE. Well, I have personally visited the LaRance project. In 1960 I was there when they had put in the pilot installation. They had built it in one of the locks on the LaRance River. Similarly Mr. Dubrow visited M. Gibrat, who is the Chief Engineer of Electricity of France, and I have also followed his progress from time to time and communicated with him. You might be interested to know with respect to one of your earlier questions, Senator, on corrosion, the French had used different types of steel on one of the impellers to find out which is the best one for salt water corrosion, so we will have the benefit of this in our studies. Senator MUSKIE. In all of the units they use they are using the axial-flow turbines also, aren't they? Mr. LESLIE. They have a slightly different one. They have a completely enclosed unit on a straight horizontal axis where the turbine and generator are all enclosed in one unit. We feel the unit considered for Quoddy is a more practical one because we keep all the generators up out of the water, and by the inclination we get better flow patterns. We feel this is an improved version over the one installed at La Rance. Senator MUSKIE. Are there likely to be any problems connected with the seal between the dry and the wet portions of the turbine? Mr. LESLIE. I do not see that there should be any, Senator. Senator MUSKIE. That is a rather conventional problem? Mr. LESLIE. Yes, sir. Senator MUSKIE. I think that exhausts our questions for the time being. I wish I knew more about your science so that I could be more informed. I think for our purposes, Mr. Secretary and gentlemen, we have benefited from your testimony this morning, and, Mr. Secretary, we do appreciate your taking the time out of a busy day to come here. And we are particularly grateful for the outstanding cooperation you have given us over the years and on this project in particular. Secretary AILES. Thank you very much. Senator MUSKIE. Thank you, sir. The hearing is adjourned. (Whereupon, at 11 a.m., the committee was adjourned, to reconvene subject to the call of the Chair.) CONTENTS OF MATERIAL PRINTED IN APPENDIX I Letter of transmittal.. Summary of exhibits.. Brief history of the Passamaquoddy project-- Summary of July 1963 report of the Passamaquoddy-St. John Study Com mittee____ Report of the Passamaquoddy-St. John Study Committee submitted to Report on preliminary investigations to the Department of the Interior. Progress reports-- Biographies of members of the Army-Interior Advisory Board on Passamaquoddy and Upper St. John River.. Biography of Dr. Lorenz Straub, University of Minnesota.. 154 156 (Reprint of S. Res. 148, 85th 157 MATERIAL ON FILE WITH THE COMMITTEE Investigation of the international Passamaquoddy tidal power project- International Passamaquoddy Fisheries Board-Report to International O |