BRIDGES. 



485 



©I' his opinion, imay be seen at leng^^i in the 6th vol. 

 of the Transactions of the A naei'ican Philosophical 

 Society. He thinks they were fixed habitations. 



BRIDGES. 



The bridge at Trenton, oyer the Dckiware, tlurty 

 miles above Philadelphia, justly claims a distin- 

 guished notice in the present v^^ork. It is to be re- 

 j^retted that the ingenious ^irchitect, Mr. Burr, has 

 not given to the public a detailed account of^a work 

 of such great and general utility, the execution of 

 ".vhich does him so much honour. The following ac- 

 count is correct as far as it goes, having been politely 

 furnished by the President of the company, John 

 Beatty, Esq. 



On the 21st day of May, 1804, the first corner stone 

 was laid. The front of the abutment on the Pennsyi- 

 vania side, being sixty-five iv^et in advance from the 

 bank, it was thought prudent to make it thicker than 

 the one on the opposite shore ; accordingly this abut- 

 ment is fifty feet in front, and eighteen feet thick, 

 with the back part supported by an horizontal arch^ 

 from its foundation. On the third day of July, the 

 stone work was cominenced, and continued with- 

 out much further interruption, except from the 

 v/ater flowing in, until it arrived at the level of 

 the ground. 



