Report of Messrs. Maillefert and Raaslof, Civil Engineers, upon the Examination and Survey of the River St. Lawrence, from Prescott to the head of the Lachine Canal, and certain experimental blasting operations made during the summer of 1854.
Table of Contents

Title Page
Table of Contents
Maps Accompanying this Report
Copy of a Report of a Committee of the Honorable the Executive Council, dated 18th October, 1854, approved by His Excellency the Governor General, in Council, on the same day.
Instructions for J. B. Jarvis, Esquire, Civil Engineer, on the subject of a Canal between the River St. Lawrence and Lake Champlain.
STATEMENT shewing the Cost of a Survey for a Canal to connect the River St. Lawrence with Lake Champlain.
Report of Edward H. Tracy, Esquire, Civil Engineer.
Report of John B. Jarvis, Esquire, Civil Engineer.
Report of Messrs. Maillefert and Raaslof, Civil Engineers, upon the Examination and Survey of the River St. Lawrence, from Prescott to the head of the Lachine Canal, and certain experimental blasting operations made during the summer of 1854.
[Introduction]
1. Surveying Operations.
2. The Width and Depth of the Channel.
3. The Low Summer Water
4. The Experimental Blasting Operations.
5. The Estimates of Cost.
RECAPITULATION
[Maillefert & Raasloff to Begly, 9 Sep. 1853]
[Maillefert & Raasloff to Commissioners of Public Works, 26 Oct. 1853]
[Maillefert & Raasloff to Begly, 20 May 1854]
[Maillefert & Raasloff to Begly, 5 May 1854]
[Maillefert & Raasloff to Killaly, 5 Jun 1854]
[Maillefert & Raasloff to Begly, 6 Jun 1854]
[Maillefert & Raasloff to Begly, 14 Jun 1854]
[Raasloff to Killaly, 14 Jun 1854]
[Maillefert & Raasloff to Commissioners of Public Works, 4 Jun 1854]
[Maillefert & Raasloff to Commissioners of Public Works, 27 Jun 1854]
[Maillefert & Raasloff to Begly, 29 Jun 1854]
[Maillefert & Raasloff to Begly, 4 Aug 1854]
[Maillefert & Raasloff to Begly, 25 Aug 1854]
[List of Instruments from Public Works, 29 Aug 1854]
[Maillefert & Raasloff to Begly, 29 Aug 1854]
[Maillefert & Raasloff to Begly, 25 Aug 1854]
[Wulff, Elliott, Bell, Blenham to Begly, 25 Aug 1854]
[Maillefert & Raasloff to Begly, 2 Sep 1854]
[Maillefert & Raasloff to Begly, 66 Sep 1854]
[Maillefert & Raasloff to Begly, 6 Nov 1854]
[Maillefert & Raasloff to Begly, 30 Nov 1854]
[Begly to Maillefert & Raasloff, 30 Jun 1853]
[Begly to Maillefert & Raasloff, 5 Sep 1853]
[Begly to Maillefert & Raasloff, 29 Sep 1853]
[Killaly to Raasloff, 20 Jun 1854]
[Begly to Maillefert & Raasloff, 15 Sep 1854]
[Begly to Maillefert & Raasloff, 20 Nov 1854]
[Begly to Maillefert & Raasloff, 5 Dec 1854]
Tender for Improving the Rapids of the St. Lawrence.
No. 1. Estimate of the Cost of Surveying "Coteau," "Cascades," and "Lachine Rapids," &c.
[Articles of Agreement, Maillefert & Raasloff and Crown, 18 Oct 1853]
[Articles of Agreement, Maillefert & Raasloff and Crown, 9 Dec 1854]
SCHEDULE A. List of Boats and other material purchased by the undersigned Maillefert & Raaslof, for use in their Exploration of the Rapids of the River St. Lawrence.
[Articles of Agreement, Maillefert & Raasloff and Crown, 9 Sep 1854]
SCHEDULE A. List of Boats and other materials purchased by the undersigned, for use in their Exploration of the Rapids of the River St. Lawrence.
Table A.

[Killaly to Raasloff, 20 Jun 1854]

PUBLIC WORKS, QUEBEC, 20th June, 1854.

SIR,-I am to apologise for not having answered you former letter, but since my absence I have been so wholly engrossed with our Annual Report that I really have not had one moment.

I now beg to acknowledge it and yours of the 14th. I have directed the rope to be sent you.

With regard to the further examination of the Coteau Rapids, you speak of, nothing will be done, if anything doubtful is left.

The object is such that if it cannot be carried out thoroughly, nothing is done, but as we have spoken of, the object is if possible to accomplish a Channel suitable for a vessel drawing 10 feet to pass down in safety, for such, less breadth than 200 feet of a moderate straight course would not be considered ample, and now that the River is about to be opened to our American friends, the importance of it is becoming greater; should, however, it be found impracticable to obtain such, it will then be fixed positively what can be effected with certainty.

I need hardly point out to you how indispensably necessary it is that you should establish safe and permanent marks of reference at head of each rapids, with the view, not only of shewing, during the course of operations, how the levels at the heads may be affected by our operations, but which will serve also as permanent standards, by which the trade will be governed as to what depth they can carry down at the respective levels of the river, in high, middling or low water.

I would again merely repeat our desire that the duty you are now engaged in should be done most thoroughly.

I have the honor to be, Sir,
Your most obedient servant,
(Signed,) H. H. KILLALY.
Wm. Raasloff, Esquire,
Coteau Landing, Canada East.

 


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