AHC, LPG 3/12/1863

Atlanta Ga. March 12th 1863
 
Colonel J. F. Gilmer
Chief of Engineer Bureau
Richmond Va.
 
Colonel,
   On my return this morning from the salines of Clark Co. Ala. I found your letters of the 27th ult. and the 4th inst. awaiting me, the latter enclosing notice of Requisition No. 10 for $20,000 to be applied to the Watauga and Holston Bridges. I have no report from the Holston today, but was assured by Mr. Maxwell previous to my departure that, without Providential delay, the Holston Bridge would be in readiness to pass the trains on the 10th inst.
   The Geo. & Ala. R. R. Co. will be notified by letter today of the cause for delaying to enter into contract with it.
   At an interview with Govr Shorter in Montgomery he expressed an earnest desire to afford facilities towards executing the work required for the proposed salt works, but remarked that the State work were then only in partial operation, owing to the difficulty in hiring negroes. This fact was apparent on visiting the works. A large number of negroes have been pressed to work on the defenses of Mobile, under the authority on sanction of the Govt. The inference is plain that he did not think it expedient to press laborers to carry on the salt operations of the state. Strong prejudice has been engendered among the owners of negroes in Ala. owing to the want of proper treatment of slaves on the works at Mobile. Many have sickened, and the mortality has been unusually large for the force employed. For this I do not vouch, but give it as the general expression whenever I heard the subject mentioned. The name of Govt. work is a serious drawback in attempting to hire negroes. I have as yet secured only 30 hands, and this force was only obtained in connection with the contract for the duplicate bridges in Geo. The owners decline to fix any definite rate per month for their hands, but will be governed by the rate of hire current in the section of country where they may be employed. The hire, and cost of subsistence will not be less than $60 per month. I was somewhat surprised to find the waters of the Tombigbee about 4 feet above the foundation of the Engine at the State works on Jacksons Creek. The bottoms between the works and the river bank proper, a width of 2 1/2 miles was overflowed to an average depth of 7 feet. The error in location of the State Engine is attributable to the statements of resident citizens as to high water mark. The location of the Engine and wells pointed out by Professor Thomassy for the proposed Govt works will be subject to overflows, but can easily be protected by a levee.
   The preliminary Engineering has been executed and mapped. To make an area of 40 acres available will require more grading therein first assumed, not from any misapprehension as to the incyualities(?) of the ground, but from a change in Prof. T's statement of the anas(?) of his main reservoirs at our last interview, from the statement made when we visited the locality. The Professor desires to have the wells 9 inches in diameter. The wells at the State works are 3 1/2 inches in diam. I find no one except Mr. Welton of Charleston, who has the tools for boring more than 5 inches diam. Prof. Thomassy was over sanguine as to the availability of Mr. Welton for this service. Mr. Welton cannot be obtained.
   The last well commenced by the State has been abandoned owing to the tendency to cave. The workmen say that this tendency increases in the direction pointed out by Prof. T. for the Govt. wells. The tendency to cave obviously increases with the size of bore. The larger bore must be tubed. When Prof. T. and myself were at the works, all the testimony and opinions were decidedly that tubing would not be required below the first hard stratum, say 20 feet.
   No engine that will suit our purpose, and is for sale has yet been found.
   In view of these delays and untoward circumstances, I must frankly state to you that, the works can hardly be executed before midsummer. If you wish me to put on the small force and start the work, please telegraph me to that effect.
   At Selma I learned from Mr. Goodwin Secy. Ala. & Ten. River R. R. Co. that the mortgage required by the Hon. Secy. of War, from that Co. had been executed and forwarded to Richmond.
Very Respectfully
L. P. Grant
Capt. Engrs. P. A. C. S.

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