[ 269 1 



But there are other works at Barton 

 which claim our attention befides the 

 crofling the river. Two roads here came 

 athwart the navigation, and happening in 

 this valley where the canal is fo much 

 higher than the level of the country, to 

 have built bridges would have coft immenfc 

 fums, as the rife would have required them 

 half as long as that at Wejitninfier. The 

 method, therefore, taken by Mr. Brindley 

 was to fink the road gradually on both 

 fides, and turning a large arch, to carry the 

 canal over the roads as well as the river ; 

 and this is pradtifed with both. So that in 

 going under it you fink gradually on one 

 fide and rife in the fame manner on the 

 other. The view, Plate VI, will explain 

 it clearly. 



A. Is the canal. 



B. The wall that fupports the arch. 



C. The road. 



Leaving this fcene of wonders we paflcd 

 on, and coming to Moreton Bridge, we pre- 

 fently faw a frefli inftance of attention, to 

 keep the water of the canal unmixed by 

 that even of the fmalleft ftream, for here 

 an arch is turned under the canal for a 

 little brook to run through. 



From 



