Fig. 539.

SECTION OK CANAL WHEKE PUDDLED.

At Amllem in Cheshire are fifteen locks in one chain ; 12 miles north of the river Weaverare two more, making twenty-eight locks in all upon the main line, besides those on the

Fig. 540. SECTION OK CANAL.

Newport branch. These locks arc 82 feet in length, and 7 feet 6 inches in width, andadmit a boat 7 feet wide, carrying 24 tons.

At Nantwich is a cast-iron aqueduct, the archesof which span 30 feetand rise 4 feet.

Thirteen miles fromthe south end of themain line, in the town-ship of Norbury, theNewport branch com-mences, which falls intothe Shrewsbury canal,in the township of Wap-penhall. This canal is11 miles in length, andhas a fall of 139 feet, bysimilar locks to those ofthe main line : its sup-ply of water is thusobtained; its summitbeing upon a level withthe Staffordshire canal,and under that of the

Birmingham canal, communicating with the latter at Autherley, every boat passing to or

Fig. 541.

Fig 542.

PLAN OF AQUEDUCT.